How to use evaluate method in Playwright Internal

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metrics_test.py

Source:metrics_test.py

...44    self.assertEqual(m.name, 'my_mean')45    self.assertTrue(m.stateful)46    self.assertEqual(m.dtype, dtypes.float32)47    self.assertEqual(len(m.variables), 2)48    self.evaluate(variables.variables_initializer(m.variables))49    # check initial state50    self.assertEqual(self.evaluate(m.total), 0)51    self.assertEqual(self.evaluate(m.count), 0)52    # check __call__()53    self.assertEqual(self.evaluate(m(100)), 100)54    self.assertEqual(self.evaluate(m.total), 100)55    self.assertEqual(self.evaluate(m.count), 1)56    # check update_state() and result() + state accumulation + tensor input57    update_op = m.update_state(ops.convert_n_to_tensor([1, 5]))58    self.evaluate(update_op)59    self.assertAlmostEqual(self.evaluate(m.result()), 106 / 3, 2)60    self.assertEqual(self.evaluate(m.total), 106)  # 100 + 1 + 561    self.assertEqual(self.evaluate(m.count), 3)62    # check reset_states()63    m.reset_states()64    self.assertEqual(self.evaluate(m.total), 0)65    self.assertEqual(self.evaluate(m.count), 0)66    # Check save and restore config67    m2 = metrics.Mean.from_config(m.get_config())68    self.assertEqual(m2.name, 'my_mean')69    self.assertTrue(m2.stateful)70    self.assertEqual(m2.dtype, dtypes.float32)71    self.assertEqual(len(m2.variables), 2)72  def test_mean_with_sample_weight(self):73    m = metrics.Mean(dtype=dtypes.float64)74    self.assertEqual(m.dtype, dtypes.float64)75    self.evaluate(variables.variables_initializer(m.variables))76    # check scalar weight77    result_t = m(100, sample_weight=0.5)78    self.assertEqual(self.evaluate(result_t), 50 / 0.5)79    self.assertEqual(self.evaluate(m.total), 50)80    self.assertEqual(self.evaluate(m.count), 0.5)81    # check weights not scalar and weights rank matches values rank82    result_t = m([1, 5], sample_weight=[1, 0.2])83    result = self.evaluate(result_t)84    self.assertAlmostEqual(result, 52 / 1.7, 2)85    self.assertAlmostEqual(self.evaluate(m.total), 52, 2)  # 50 + 1 + 5 * 0.286    self.assertAlmostEqual(self.evaluate(m.count), 1.7, 2)  # 0.5 + 1.287    # check weights broadcast88    result_t = m([1, 2], sample_weight=0.5)89    self.assertAlmostEqual(self.evaluate(result_t), 53.5 / 2.7, 2)90    self.assertAlmostEqual(self.evaluate(m.total), 53.5, 2)  # 52 + 0.5 + 191    self.assertAlmostEqual(self.evaluate(m.count), 2.7, 2)  # 1.7 + 0.5 + 0.592    # check weights squeeze93    result_t = m([1, 5], sample_weight=[[1], [0.2]])94    self.assertAlmostEqual(self.evaluate(result_t), 55.5 / 3.9, 2)95    self.assertAlmostEqual(self.evaluate(m.total), 55.5, 2)  # 53.5 + 1 + 196    self.assertAlmostEqual(self.evaluate(m.count), 3.9, 2)  # 2.7 + 1.297    # check weights expand98    result_t = m([[1], [5]], sample_weight=[1, 0.2])99    self.assertAlmostEqual(self.evaluate(result_t), 57.5 / 5.1, 2)100    self.assertAlmostEqual(self.evaluate(m.total), 57.5, 2)  # 55.5 + 1 + 1101    self.assertAlmostEqual(self.evaluate(m.count), 5.1, 2)  # 3.9 + 1.2102    # check values reduced to the dimensions of weight103    result_t = m([[[1., 2.], [3., 2.], [0.5, 4.]]], sample_weight=[0.5])104    result = np.round(self.evaluate(result_t), decimals=2)  # 58.5 / 5.6105    self.assertEqual(result, 10.45)106    self.assertEqual(np.round(self.evaluate(m.total), decimals=2), 58.54)107    self.assertEqual(np.round(self.evaluate(m.count), decimals=2), 5.6)108  def test_mean_graph_with_placeholder(self):109    with context.graph_mode(), self.cached_session() as sess:110      m = metrics.Mean()111      v = array_ops.placeholder(dtypes.float32)112      w = array_ops.placeholder(dtypes.float32)113      self.evaluate(variables.variables_initializer(m.variables))114      # check __call__()115      result_t = m(v, sample_weight=w)116      result = sess.run(result_t, feed_dict=({v: 100, w: 0.5}))117      self.assertEqual(self.evaluate(m.total), 50)118      self.assertEqual(self.evaluate(m.count), 0.5)119      self.assertEqual(result, 50 / 0.5)120      # check update_state() and result()121      result = sess.run(result_t, feed_dict=({v: [1, 5], w: [1, 0.2]}))122      self.assertAlmostEqual(self.evaluate(m.total), 52, 2)  # 50 + 1 + 5 * 0.2123      self.assertAlmostEqual(self.evaluate(m.count), 1.7, 2)  # 0.5 + 1.2124      self.assertAlmostEqual(result, 52 / 1.7, 2)125  def test_save_restore(self):126    checkpoint_directory = self.get_temp_dir()127    checkpoint_prefix = os.path.join(checkpoint_directory, 'ckpt')128    m = metrics.Mean()129    checkpoint = checkpointable_utils.Checkpoint(mean=m)130    self.evaluate(variables.variables_initializer(m.variables))131    # update state132    self.evaluate(m(100.))133    self.evaluate(m(200.))134    # save checkpoint and then add an update135    save_path = checkpoint.save(checkpoint_prefix)136    self.evaluate(m(1000.))137    # restore to the same checkpoint mean object138    checkpoint.restore(save_path).assert_consumed().run_restore_ops()139    self.evaluate(m(300.))140    self.assertEqual(200., self.evaluate(m.result()))141    # restore to a different checkpoint mean object142    restore_mean = metrics.Mean()143    restore_checkpoint = checkpointable_utils.Checkpoint(mean=restore_mean)144    status = restore_checkpoint.restore(save_path)145    restore_update = restore_mean(300.)146    status.assert_consumed().run_restore_ops()147    self.evaluate(restore_update)148    self.assertEqual(200., self.evaluate(restore_mean.result()))149    self.assertEqual(3, self.evaluate(restore_mean.count))150@test_util.run_all_in_graph_and_eager_modes151class KerasAccuracyTest(test.TestCase):152  def test_accuracy(self):153    acc_obj = metrics.Accuracy(name='my acc')154    # check config155    self.assertEqual(acc_obj.name, 'my acc')156    self.assertTrue(acc_obj.stateful)157    self.assertEqual(len(acc_obj.variables), 2)158    self.assertEqual(acc_obj.dtype, dtypes.float32)159    self.evaluate(variables.variables_initializer(acc_obj.variables))160    # verify that correct value is returned161    update_op = acc_obj.update_state([[1], [2], [3], [4]], [[1], [2], [3], [4]])162    self.evaluate(update_op)163    result = self.evaluate(acc_obj.result())164    self.assertEqual(result, 1)  # 2/2165    # Check save and restore config166    a2 = metrics.Accuracy.from_config(acc_obj.get_config())167    self.assertEqual(a2.name, 'my acc')168    self.assertTrue(a2.stateful)169    self.assertEqual(len(a2.variables), 2)170    self.assertEqual(a2.dtype, dtypes.float32)171    # check with sample_weight172    result_t = acc_obj([[2], [1]], [[2], [0]], sample_weight=[[0.5], [0.2]])173    result = self.evaluate(result_t)174    self.assertAlmostEqual(result, 0.96, 2)  # 4.5/4.7175  def test_binary_accuracy(self):176    acc_obj = metrics.BinaryAccuracy(name='my acc')177    # check config178    self.assertEqual(acc_obj.name, 'my acc')179    self.assertTrue(acc_obj.stateful)180    self.assertEqual(len(acc_obj.variables), 2)181    self.assertEqual(acc_obj.dtype, dtypes.float32)182    self.evaluate(variables.variables_initializer(acc_obj.variables))183    # verify that correct value is returned184    update_op = acc_obj.update_state([[1], [0]], [[1], [0]])185    self.evaluate(update_op)186    result = self.evaluate(acc_obj.result())187    self.assertEqual(result, 1)  # 2/2188    # check y_pred squeeze189    update_op = acc_obj.update_state([[1], [1]], [[[1]], [[0]]])190    self.evaluate(update_op)191    result = self.evaluate(acc_obj.result())192    self.assertAlmostEqual(result, 0.75, 2)  # 3/4193    # check y_true squeeze194    result_t = acc_obj([[[1]], [[1]]], [[1], [0]])195    result = self.evaluate(result_t)196    self.assertAlmostEqual(result, 0.67, 2)  # 4/6197    # check with sample_weight198    result_t = acc_obj([[1], [1]], [[1], [0]], [[0.5], [0.2]])199    result = self.evaluate(result_t)200    self.assertAlmostEqual(result, 0.67, 2)  # 4.5/6.7201  def test_binary_accuracy_threshold(self):202    acc_obj = metrics.BinaryAccuracy(threshold=0.7)203    self.evaluate(variables.variables_initializer(acc_obj.variables))204    result_t = acc_obj([[1], [1], [0], [0]], [[0.9], [0.6], [0.4], [0.8]])205    result = self.evaluate(result_t)206    self.assertAlmostEqual(result, 0.5, 2)207  def test_categorical_accuracy(self):208    acc_obj = metrics.CategoricalAccuracy(name='my acc')209    # check config210    self.assertEqual(acc_obj.name, 'my acc')211    self.assertTrue(acc_obj.stateful)212    self.assertEqual(len(acc_obj.variables), 2)213    self.assertEqual(acc_obj.dtype, dtypes.float32)214    self.evaluate(variables.variables_initializer(acc_obj.variables))215    # verify that correct value is returned216    update_op = acc_obj.update_state([[0, 0, 1], [0, 1, 0]],217                                     [[0.1, 0.1, 0.8], [0.05, 0.95, 0]])218    self.evaluate(update_op)219    result = self.evaluate(acc_obj.result())220    self.assertEqual(result, 1)  # 2/2221    # check with sample_weight222    result_t = acc_obj([[0, 0, 1], [0, 1, 0]],223                       [[0.1, 0.1, 0.8], [0.05, 0, 0.95]], [[0.5], [0.2]])224    result = self.evaluate(result_t)225    self.assertAlmostEqual(result, 0.93, 2)  # 2.5/2.7226  def test_sparse_categorical_accuracy(self):227    acc_obj = metrics.SparseCategoricalAccuracy(name='my acc')228    # check config229    self.assertEqual(acc_obj.name, 'my acc')230    self.assertTrue(acc_obj.stateful)231    self.assertEqual(len(acc_obj.variables), 2)232    self.assertEqual(acc_obj.dtype, dtypes.float32)233    self.evaluate(variables.variables_initializer(acc_obj.variables))234    # verify that correct value is returned235    update_op = acc_obj.update_state([[2], [1]],236                                     [[0.1, 0.1, 0.8], [0.05, 0.95, 0]])237    self.evaluate(update_op)238    result = self.evaluate(acc_obj.result())239    self.assertEqual(result, 1)  # 2/2240    # check with sample_weight241    result_t = acc_obj([[2], [1]], [[0.1, 0.1, 0.8], [0.05, 0, 0.95]],242                       [[0.5], [0.2]])243    result = self.evaluate(result_t)244    self.assertAlmostEqual(result, 0.93, 2)  # 2.5/2.7245  def test_sparse_categorical_accuracy_mismatched_dims(self):246    acc_obj = metrics.SparseCategoricalAccuracy(name='my acc')247    # check config248    self.assertEqual(acc_obj.name, 'my acc')249    self.assertTrue(acc_obj.stateful)250    self.assertEqual(len(acc_obj.variables), 2)251    self.assertEqual(acc_obj.dtype, dtypes.float32)252    self.evaluate(variables.variables_initializer(acc_obj.variables))253    # verify that correct value is returned254    update_op = acc_obj.update_state([2, 1], [[0.1, 0.1, 0.8], [0.05, 0.95, 0]])255    self.evaluate(update_op)256    result = self.evaluate(acc_obj.result())257    self.assertEqual(result, 1)  # 2/2258    # check with sample_weight259    result_t = acc_obj([2, 1], [[0.1, 0.1, 0.8], [0.05, 0, 0.95]],260                       [[0.5], [0.2]])261    result = self.evaluate(result_t)262    self.assertAlmostEqual(result, 0.93, 2)  # 2.5/2.7263  def test_sparse_categorical_accuracy_mismatched_dims_dynamic(self):264    with context.graph_mode(), self.cached_session() as sess:265      acc_obj = metrics.SparseCategoricalAccuracy(name='my acc')266      self.evaluate(variables.variables_initializer(acc_obj.variables))267      t = array_ops.placeholder(dtypes.float32)268      p = array_ops.placeholder(dtypes.float32)269      w = array_ops.placeholder(dtypes.float32)270      result_t = acc_obj(t, p, w)271      result = sess.run(272          result_t,273          feed_dict=({274              t: [2, 1],275              p: [[0.1, 0.1, 0.8], [0.05, 0, 0.95]],276              w: [[0.5], [0.2]]277          }))278      self.assertAlmostEqual(result, 0.71, 2)  # 2.5/2.7279@test_util.run_all_in_graph_and_eager_modes280class CosineProximityTest(test.TestCase):281  def l2_norm(self, x, axis):282    epsilon = 1e-12283    square_sum = np.sum(np.square(x), axis=axis, keepdims=True)284    x_inv_norm = 1 / np.sqrt(np.maximum(square_sum, epsilon))285    return np.multiply(x, x_inv_norm)286  def setup(self, axis=1):287    self.np_y_true = np.asarray([[1, 9, 2], [-5, -2, 6]], dtype=np.float32)288    self.np_y_pred = np.asarray([[4, 8, 12], [8, 1, 3]], dtype=np.float32)289    y_true = self.l2_norm(self.np_y_true, axis)290    y_pred = self.l2_norm(self.np_y_pred, axis)291    self.expected_loss = -np.sum(np.multiply(y_true, y_pred), axis=(axis,))292    self.y_true = constant_op.constant(self.np_y_true)293    self.y_pred = constant_op.constant(self.np_y_pred)294  def test_config(self):295    cosine_obj = metrics.CosineProximity(296        axis=2, name='my_cos', dtype=dtypes.int32)297    self.assertEqual(cosine_obj.name, 'my_cos')298    self.assertEqual(cosine_obj._dtype, dtypes.int32)299    # Check save and restore config300    cosine_obj2 = metrics.CosineProximity.from_config(cosine_obj.get_config())301    self.assertEqual(cosine_obj2.name, 'my_cos')302    self.assertEqual(cosine_obj2._dtype, dtypes.int32)303  def test_unweighted(self):304    self.setup()305    cosine_obj = metrics.CosineProximity()306    self.evaluate(variables.variables_initializer(cosine_obj.variables))307    loss = cosine_obj(self.y_true, self.y_pred)308    expected_loss = np.mean(self.expected_loss)309    self.assertAlmostEqual(self.evaluate(loss), expected_loss, 3)310  def test_weighted(self):311    self.setup()312    cosine_obj = metrics.CosineProximity()313    self.evaluate(variables.variables_initializer(cosine_obj.variables))314    sample_weight = np.asarray([1.2, 3.4])315    loss = cosine_obj(316        self.y_true,317        self.y_pred,318        sample_weight=constant_op.constant(sample_weight))319    expected_loss = np.sum(320        self.expected_loss * sample_weight) / np.sum(sample_weight)321    self.assertAlmostEqual(self.evaluate(loss), expected_loss, 3)322  def test_axis(self):323    self.setup(axis=1)324    cosine_obj = metrics.CosineProximity(axis=1)325    self.evaluate(variables.variables_initializer(cosine_obj.variables))326    loss = cosine_obj(self.y_true, self.y_pred)327    expected_loss = np.mean(self.expected_loss)328    self.assertAlmostEqual(self.evaluate(loss), expected_loss, 3)329@test_util.run_all_in_graph_and_eager_modes330class MeanAbsoluteErrorTest(test.TestCase):331  def test_config(self):332    mae_obj = metrics.MeanAbsoluteError(name='my_mae', dtype=dtypes.int32)333    self.assertEqual(mae_obj.name, 'my_mae')334    self.assertEqual(mae_obj._dtype, dtypes.int32)335    # Check save and restore config336    mae_obj2 = metrics.MeanAbsoluteError.from_config(mae_obj.get_config())337    self.assertEqual(mae_obj2.name, 'my_mae')338    self.assertEqual(mae_obj2._dtype, dtypes.int32)339  def test_unweighted(self):340    mae_obj = metrics.MeanAbsoluteError()341    self.evaluate(variables.variables_initializer(mae_obj.variables))342    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),343                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))344    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),345                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))346    update_op = mae_obj.update_state(y_true, y_pred)347    self.evaluate(update_op)348    result = mae_obj.result()349    self.assertAllClose(0.5, result, atol=1e-5)350  def test_weighted(self):351    mae_obj = metrics.MeanAbsoluteError()352    self.evaluate(variables.variables_initializer(mae_obj.variables))353    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),354                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))355    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),356                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))357    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))358    result = mae_obj(y_true, y_pred, sample_weight=sample_weight)359    self.assertAllClose(0.54285, self.evaluate(result), atol=1e-5)360@test_util.run_all_in_graph_and_eager_modes361class MeanAbsolutePercentageErrorTest(test.TestCase):362  def test_config(self):363    mape_obj = metrics.MeanAbsolutePercentageError(364        name='my_mape', dtype=dtypes.int32)365    self.assertEqual(mape_obj.name, 'my_mape')366    self.assertEqual(mape_obj._dtype, dtypes.int32)367    # Check save and restore config368    mape_obj2 = metrics.MeanAbsolutePercentageError.from_config(369        mape_obj.get_config())370    self.assertEqual(mape_obj2.name, 'my_mape')371    self.assertEqual(mape_obj2._dtype, dtypes.int32)372  def test_unweighted(self):373    mape_obj = metrics.MeanAbsolutePercentageError()374    self.evaluate(variables.variables_initializer(mape_obj.variables))375    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),376                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))377    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),378                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))379    update_op = mape_obj.update_state(y_true, y_pred)380    self.evaluate(update_op)381    result = mape_obj.result()382    self.assertAllClose(35e7, result, atol=1e-5)383  def test_weighted(self):384    mape_obj = metrics.MeanAbsolutePercentageError()385    self.evaluate(variables.variables_initializer(mape_obj.variables))386    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),387                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))388    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),389                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))390    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))391    result = mape_obj(y_true, y_pred, sample_weight=sample_weight)392    self.assertAllClose(40e7, self.evaluate(result), atol=1e-5)393@test_util.run_all_in_graph_and_eager_modes394class MeanSquaredErrorTest(test.TestCase):395  def test_config(self):396    mse_obj = metrics.MeanSquaredError(name='my_mse', dtype=dtypes.int32)397    self.assertEqual(mse_obj.name, 'my_mse')398    self.assertEqual(mse_obj._dtype, dtypes.int32)399    # Check save and restore config400    mse_obj2 = metrics.MeanSquaredError.from_config(mse_obj.get_config())401    self.assertEqual(mse_obj2.name, 'my_mse')402    self.assertEqual(mse_obj2._dtype, dtypes.int32)403  def test_unweighted(self):404    mse_obj = metrics.MeanSquaredError()405    self.evaluate(variables.variables_initializer(mse_obj.variables))406    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),407                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))408    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),409                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))410    update_op = mse_obj.update_state(y_true, y_pred)411    self.evaluate(update_op)412    result = mse_obj.result()413    self.assertAllClose(0.5, result, atol=1e-5)414  def test_weighted(self):415    mse_obj = metrics.MeanSquaredError()416    self.evaluate(variables.variables_initializer(mse_obj.variables))417    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),418                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))419    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),420                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))421    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))422    result = mse_obj(y_true, y_pred, sample_weight=sample_weight)423    self.assertAllClose(0.54285, self.evaluate(result), atol=1e-5)424@test_util.run_all_in_graph_and_eager_modes425class MeanSquaredLogarithmicErrorTest(test.TestCase):426  def test_config(self):427    msle_obj = metrics.MeanSquaredLogarithmicError(428        name='my_msle', dtype=dtypes.int32)429    self.assertEqual(msle_obj.name, 'my_msle')430    self.assertEqual(msle_obj._dtype, dtypes.int32)431    # Check save and restore config432    msle_obj2 = metrics.MeanSquaredLogarithmicError.from_config(433        msle_obj.get_config())434    self.assertEqual(msle_obj2.name, 'my_msle')435    self.assertEqual(msle_obj2._dtype, dtypes.int32)436  def test_unweighted(self):437    msle_obj = metrics.MeanSquaredLogarithmicError()438    self.evaluate(variables.variables_initializer(msle_obj.variables))439    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),440                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))441    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),442                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))443    update_op = msle_obj.update_state(y_true, y_pred)444    self.evaluate(update_op)445    result = msle_obj.result()446    self.assertAllClose(0.24022, result, atol=1e-5)447  def test_weighted(self):448    msle_obj = metrics.MeanSquaredLogarithmicError()449    self.evaluate(variables.variables_initializer(msle_obj.variables))450    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),451                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))452    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),453                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))454    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))455    result = msle_obj(y_true, y_pred, sample_weight=sample_weight)456    self.assertAllClose(0.26082, self.evaluate(result), atol=1e-5)457@test_util.run_all_in_graph_and_eager_modes458class HingeTest(test.TestCase):459  def test_config(self):460    hinge_obj = metrics.Hinge(name='hinge', dtype=dtypes.int32)461    self.assertEqual(hinge_obj.name, 'hinge')462    self.assertEqual(hinge_obj._dtype, dtypes.int32)463    # Check save and restore config464    hinge_obj2 = metrics.Hinge.from_config(hinge_obj.get_config())465    self.assertEqual(hinge_obj2.name, 'hinge')466    self.assertEqual(hinge_obj2._dtype, dtypes.int32)467  def test_unweighted(self):468    hinge_obj = metrics.Hinge()469    self.evaluate(variables.variables_initializer(hinge_obj.variables))470    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),471                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))472    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),473                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))474    update_op = hinge_obj.update_state(y_true, y_pred)475    self.evaluate(update_op)476    result = hinge_obj.result()477    self.assertAllClose(0.65, result, atol=1e-5)478  def test_weighted(self):479    hinge_obj = metrics.Hinge()480    self.evaluate(variables.variables_initializer(hinge_obj.variables))481    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),482                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))483    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),484                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))485    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))486    result = hinge_obj(y_true, y_pred, sample_weight=sample_weight)487    self.assertAllClose(0.65714, self.evaluate(result), atol=1e-5)488@test_util.run_all_in_graph_and_eager_modes489class SquaredHingeTest(test.TestCase):490  def test_config(self):491    sq_hinge_obj = metrics.SquaredHinge(name='sq_hinge', dtype=dtypes.int32)492    self.assertEqual(sq_hinge_obj.name, 'sq_hinge')493    self.assertEqual(sq_hinge_obj._dtype, dtypes.int32)494    # Check save and restore config495    sq_hinge_obj2 = metrics.SquaredHinge.from_config(sq_hinge_obj.get_config())496    self.assertEqual(sq_hinge_obj2.name, 'sq_hinge')497    self.assertEqual(sq_hinge_obj2._dtype, dtypes.int32)498  def test_unweighted(self):499    sq_hinge_obj = metrics.SquaredHinge()500    self.evaluate(variables.variables_initializer(sq_hinge_obj.variables))501    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),502                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))503    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),504                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))505    update_op = sq_hinge_obj.update_state(y_true, y_pred)506    self.evaluate(update_op)507    result = sq_hinge_obj.result()508    self.assertAllClose(0.65, result, atol=1e-5)509  def test_weighted(self):510    sq_hinge_obj = metrics.SquaredHinge()511    self.evaluate(variables.variables_initializer(sq_hinge_obj.variables))512    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),513                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))514    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),515                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))516    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))517    result = sq_hinge_obj(y_true, y_pred, sample_weight=sample_weight)518    self.assertAllClose(0.65714, self.evaluate(result), atol=1e-5)519@test_util.run_all_in_graph_and_eager_modes520class CategoricalHingeTest(test.TestCase):521  def test_config(self):522    cat_hinge_obj = metrics.CategoricalHinge(523        name='cat_hinge', dtype=dtypes.int32)524    self.assertEqual(cat_hinge_obj.name, 'cat_hinge')525    self.assertEqual(cat_hinge_obj._dtype, dtypes.int32)526    # Check save and restore config527    cat_hinge_obj2 = metrics.CategoricalHinge.from_config(528        cat_hinge_obj.get_config())529    self.assertEqual(cat_hinge_obj2.name, 'cat_hinge')530    self.assertEqual(cat_hinge_obj2._dtype, dtypes.int32)531  def test_unweighted(self):532    cat_hinge_obj = metrics.CategoricalHinge()533    self.evaluate(variables.variables_initializer(cat_hinge_obj.variables))534    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),535                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))536    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),537                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))538    update_op = cat_hinge_obj.update_state(y_true, y_pred)539    self.evaluate(update_op)540    result = cat_hinge_obj.result()541    self.assertAllClose(0.5, result, atol=1e-5)542  def test_weighted(self):543    cat_hinge_obj = metrics.CategoricalHinge()544    self.evaluate(variables.variables_initializer(cat_hinge_obj.variables))545    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),546                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))547    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),548                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))549    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))550    result = cat_hinge_obj(y_true, y_pred, sample_weight=sample_weight)551    self.assertAllClose(0.5, self.evaluate(result), atol=1e-5)552@test_util.run_all_in_graph_and_eager_modes553class RootMeanSquaredErrorTest(test.TestCase):554  def test_config(self):555    rmse_obj = metrics.RootMeanSquaredError(name='rmse', dtype=dtypes.int32)556    self.assertEqual(rmse_obj.name, 'rmse')557    self.assertEqual(rmse_obj._dtype, dtypes.int32)558    rmse_obj2 = metrics.RootMeanSquaredError.from_config(rmse_obj.get_config())559    self.assertEqual(rmse_obj2.name, 'rmse')560    self.assertEqual(rmse_obj2._dtype, dtypes.int32)561  def test_unweighted(self):562    rmse_obj = metrics.RootMeanSquaredError()563    self.evaluate(variables.variables_initializer(rmse_obj.variables))564    y_true = constant_op.constant((2, 4, 6))565    y_pred = constant_op.constant((1, 3, 2))566    update_op = rmse_obj.update_state(y_true, y_pred)567    self.evaluate(update_op)568    result = rmse_obj.result()569    # error = [-1, -1, -4], square(error) = [1, 1, 16], mean = 18/3 = 6570    self.assertAllClose(math.sqrt(6), result, atol=1e-3)571  def test_weighted(self):572    rmse_obj = metrics.RootMeanSquaredError()573    self.evaluate(variables.variables_initializer(rmse_obj.variables))574    y_true = constant_op.constant((2, 4, 6, 8))575    y_pred = constant_op.constant((1, 3, 2, 3))576    sample_weight = constant_op.constant((0, 1, 0, 1))577    result = rmse_obj(y_true, y_pred, sample_weight=sample_weight)578    self.assertAllClose(math.sqrt(13), self.evaluate(result), atol=1e-3)579@test_util.run_all_in_graph_and_eager_modes580class TopKCategoricalAccuracyTest(test.TestCase):581  def test_config(self):582    a_obj = metrics.TopKCategoricalAccuracy(name='topkca', dtype=dtypes.int32)583    self.assertEqual(a_obj.name, 'topkca')584    self.assertEqual(a_obj._dtype, dtypes.int32)585    a_obj2 = metrics.TopKCategoricalAccuracy.from_config(a_obj.get_config())586    self.assertEqual(a_obj2.name, 'topkca')587    self.assertEqual(a_obj2._dtype, dtypes.int32)588  def test_correctness(self):589    a_obj = metrics.TopKCategoricalAccuracy()590    self.evaluate(variables.variables_initializer(a_obj.variables))591    y_true = constant_op.constant([[0, 0, 1], [0, 1, 0]])592    y_pred = constant_op.constant([[0.1, 0.9, 0.8], [0.05, 0.95, 0]])593    result = a_obj(y_true, y_pred)594    self.assertEqual(1, self.evaluate(result))  # both the samples match595    # With `k` < 5.596    a_obj = metrics.TopKCategoricalAccuracy(k=1)597    self.evaluate(variables.variables_initializer(a_obj.variables))598    result = a_obj(y_true, y_pred)599    self.assertEqual(0.5, self.evaluate(result))  # only sample #2 matches600    # With `k` > 5.601    y_true = constant_op.constant([[0, 0, 1, 0, 0, 0, 0],602                                   [0, 1, 0, 0, 0, 0, 0]])603    y_pred = constant_op.constant([[0.5, 0.9, 0.1, 0.7, 0.6, 0.5, 0.4],604                                   [0.05, 0.95, 0, 0, 0, 0, 0]])605    a_obj = metrics.TopKCategoricalAccuracy(k=6)606    self.evaluate(variables.variables_initializer(a_obj.variables))607    result = a_obj(y_true, y_pred)608    self.assertEqual(0.5, self.evaluate(result))  # only 1 sample matches.609@test_util.run_all_in_graph_and_eager_modes610class SparseTopKCategoricalAccuracyTest(test.TestCase):611  def test_config(self):612    a_obj = metrics.SparseTopKCategoricalAccuracy(613        name='stopkca', dtype=dtypes.int32)614    self.assertEqual(a_obj.name, 'stopkca')615    self.assertEqual(a_obj._dtype, dtypes.int32)616    a_obj2 = metrics.SparseTopKCategoricalAccuracy.from_config(617        a_obj.get_config())618    self.assertEqual(a_obj2.name, 'stopkca')619    self.assertEqual(a_obj2._dtype, dtypes.int32)620  def test_correctness(self):621    a_obj = metrics.SparseTopKCategoricalAccuracy()622    self.evaluate(variables.variables_initializer(a_obj.variables))623    y_true = constant_op.constant([2, 1])624    y_pred = constant_op.constant([[0.1, 0.9, 0.8], [0.05, 0.95, 0]])625    result = a_obj(y_true, y_pred)626    self.assertEqual(1, self.evaluate(result))  # both the samples match627    # With `k` < 5.628    a_obj = metrics.SparseTopKCategoricalAccuracy(k=1)629    self.evaluate(variables.variables_initializer(a_obj.variables))630    result = a_obj(y_true, y_pred)631    self.assertEqual(0.5, self.evaluate(result))  # only sample #2 matches632    # With `k` > 5.633    y_pred = constant_op.constant([[0.5, 0.9, 0.1, 0.7, 0.6, 0.5, 0.4],634                                   [0.05, 0.95, 0, 0, 0, 0, 0]])635    a_obj = metrics.SparseTopKCategoricalAccuracy(k=6)636    self.evaluate(variables.variables_initializer(a_obj.variables))637    result = a_obj(y_true, y_pred)638    self.assertEqual(0.5, self.evaluate(result))  # only 1 sample matches.639@test_util.run_all_in_graph_and_eager_modes640class LogcoshTest(test.TestCase):641  def setup(self):642    y_pred = np.asarray([1, 9, 2, -5, -2, 6]).reshape((2, 3))643    y_true = np.asarray([4, 8, 12, 8, 1, 3]).reshape((2, 3))644    self.batch_size = 6645    error = y_pred - y_true646    self.expected_results = np.log((np.exp(error) + np.exp(-error)) / 2)647    self.y_pred = constant_op.constant(y_pred, dtype=dtypes.float32)648    self.y_true = constant_op.constant(y_true)649  def test_config(self):650    logcosh_obj = metrics.Logcosh(name='logcosh', dtype=dtypes.int32)651    self.assertEqual(logcosh_obj.name, 'logcosh')652    self.assertEqual(logcosh_obj._dtype, dtypes.int32)653  def test_unweighted(self):654    self.setup()655    logcosh_obj = metrics.Logcosh()656    self.evaluate(variables.variables_initializer(logcosh_obj.variables))657    update_op = logcosh_obj.update_state(self.y_true, self.y_pred)658    self.evaluate(update_op)659    result = logcosh_obj.result()660    expected_result = np.sum(self.expected_results) / self.batch_size661    self.assertAllClose(result, expected_result, atol=1e-3)662  def test_weighted(self):663    self.setup()664    logcosh_obj = metrics.Logcosh()665    self.evaluate(variables.variables_initializer(logcosh_obj.variables))666    sample_weight = constant_op.constant([1.2, 3.4], shape=(2, 1))667    result = logcosh_obj(self.y_true, self.y_pred, sample_weight=sample_weight)668    sample_weight = np.asarray([1.2, 1.2, 1.2, 3.4, 3.4, 3.4]).reshape((2, 3))669    expected_result = np.multiply(self.expected_results, sample_weight)670    expected_result = np.sum(expected_result) / np.sum(sample_weight)671    self.assertAllClose(self.evaluate(result), expected_result, atol=1e-3)672@test_util.run_all_in_graph_and_eager_modes673class PoissonTest(test.TestCase):674  def setup(self):675    y_pred = np.asarray([1, 9, 2, 5, 2, 6]).reshape((2, 3))676    y_true = np.asarray([4, 8, 12, 8, 1, 3]).reshape((2, 3))677    self.batch_size = 6678    self.expected_results = y_pred - np.multiply(y_true, np.log(y_pred))679    self.y_pred = constant_op.constant(y_pred, dtype=dtypes.float32)680    self.y_true = constant_op.constant(y_true)681  def test_config(self):682    poisson_obj = metrics.Poisson(name='poisson', dtype=dtypes.int32)683    self.assertEqual(poisson_obj.name, 'poisson')684    self.assertEqual(poisson_obj._dtype, dtypes.int32)685    poisson_obj2 = metrics.Poisson.from_config(poisson_obj.get_config())686    self.assertEqual(poisson_obj2.name, 'poisson')687    self.assertEqual(poisson_obj2._dtype, dtypes.int32)688  def test_unweighted(self):689    self.setup()690    poisson_obj = metrics.Poisson()691    self.evaluate(variables.variables_initializer(poisson_obj.variables))692    update_op = poisson_obj.update_state(self.y_true, self.y_pred)693    self.evaluate(update_op)694    result = poisson_obj.result()695    expected_result = np.sum(self.expected_results) / self.batch_size696    self.assertAllClose(result, expected_result, atol=1e-3)697  def test_weighted(self):698    self.setup()699    poisson_obj = metrics.Poisson()700    self.evaluate(variables.variables_initializer(poisson_obj.variables))701    sample_weight = constant_op.constant([1.2, 3.4], shape=(2, 1))702    result = poisson_obj(self.y_true, self.y_pred, sample_weight=sample_weight)703    sample_weight = np.asarray([1.2, 1.2, 1.2, 3.4, 3.4, 3.4]).reshape((2, 3))704    expected_result = np.multiply(self.expected_results, sample_weight)705    expected_result = np.sum(expected_result) / np.sum(sample_weight)706    self.assertAllClose(self.evaluate(result), expected_result, atol=1e-3)707@test_util.run_all_in_graph_and_eager_modes708class KullbackLeiblerDivergenceTest(test.TestCase):709  def setup(self):710    y_pred = np.asarray([.4, .9, .12, .36, .3, .4]).reshape((2, 3))711    y_true = np.asarray([.5, .8, .12, .7, .43, .8]).reshape((2, 3))712    self.batch_size = 2713    self.expected_results = np.multiply(y_true, np.log(y_true / y_pred))714    self.y_pred = constant_op.constant(y_pred, dtype=dtypes.float32)715    self.y_true = constant_op.constant(y_true)716  def test_config(self):717    k_obj = metrics.KullbackLeiblerDivergence(name='kld', dtype=dtypes.int32)718    self.assertEqual(k_obj.name, 'kld')719    self.assertEqual(k_obj._dtype, dtypes.int32)720    k_obj2 = metrics.KullbackLeiblerDivergence.from_config(k_obj.get_config())721    self.assertEqual(k_obj2.name, 'kld')722    self.assertEqual(k_obj2._dtype, dtypes.int32)723  def test_unweighted(self):724    self.setup()725    k_obj = metrics.KullbackLeiblerDivergence()726    self.evaluate(variables.variables_initializer(k_obj.variables))727    update_op = k_obj.update_state(self.y_true, self.y_pred)728    self.evaluate(update_op)729    result = k_obj.result()730    expected_result = np.sum(self.expected_results) / self.batch_size731    self.assertAllClose(result, expected_result, atol=1e-3)732  def test_weighted(self):733    self.setup()734    k_obj = metrics.KullbackLeiblerDivergence()735    self.evaluate(variables.variables_initializer(k_obj.variables))736    sample_weight = constant_op.constant([1.2, 3.4], shape=(2, 1))737    result = k_obj(self.y_true, self.y_pred, sample_weight=sample_weight)738    sample_weight = np.asarray([1.2, 1.2, 1.2, 3.4, 3.4, 3.4]).reshape((2, 3))739    expected_result = np.multiply(self.expected_results, sample_weight)740    expected_result = np.sum(expected_result) / (1.2 + 3.4)741    self.assertAllClose(self.evaluate(result), expected_result, atol=1e-3)742@test_util.run_all_in_graph_and_eager_modes743class MeanRelativeErrorTest(test.TestCase):744  def test_config(self):745    normalizer = constant_op.constant([1, 3], dtype=dtypes.float32)746    mre_obj = metrics.MeanRelativeError(normalizer=normalizer, name='mre')747    self.assertEqual(mre_obj.name, 'mre')748    self.assertArrayNear(self.evaluate(mre_obj.normalizer), [1, 3], 1e-1)749    mre_obj2 = metrics.MeanRelativeError.from_config(mre_obj.get_config())750    self.assertEqual(mre_obj2.name, 'mre')751    self.assertArrayNear(self.evaluate(mre_obj2.normalizer), [1, 3], 1e-1)752  def test_unweighted(self):753    np_y_pred = np.asarray([2, 4, 6, 8], dtype=np.float32)754    np_y_true = np.asarray([1, 3, 2, 3], dtype=np.float32)755    expected_error = np.mean(756        np.divide(np.absolute(np_y_pred - np_y_true), np_y_true))757    y_pred = constant_op.constant(np_y_pred, shape=(1, 4), dtype=dtypes.float32)758    y_true = constant_op.constant(np_y_true, shape=(1, 4))759    mre_obj = metrics.MeanRelativeError(normalizer=y_true)760    self.evaluate(variables.variables_initializer(mre_obj.variables))761    result = mre_obj(y_true, y_pred)762    self.assertAllClose(self.evaluate(result), expected_error, atol=1e-3)763  def test_weighted(self):764    np_y_pred = np.asarray([2, 4, 6, 8], dtype=np.float32)765    np_y_true = np.asarray([1, 3, 2, 3], dtype=np.float32)766    sample_weight = np.asarray([0.2, 0.3, 0.5, 0], dtype=np.float32)767    rel_errors = np.divide(np.absolute(np_y_pred - np_y_true), np_y_true)768    expected_error = np.sum(rel_errors * sample_weight)769    y_pred = constant_op.constant(np_y_pred, dtype=dtypes.float32)770    y_true = constant_op.constant(np_y_true)771    mre_obj = metrics.MeanRelativeError(normalizer=y_true)772    self.evaluate(variables.variables_initializer(mre_obj.variables))773    result = mre_obj(774        y_true, y_pred, sample_weight=constant_op.constant(sample_weight))775    self.assertAllClose(self.evaluate(result), expected_error, atol=1e-3)776  def test_zero_normalizer(self):777    y_pred = constant_op.constant([2, 4], dtype=dtypes.float32)778    y_true = constant_op.constant([1, 3])779    mre_obj = metrics.MeanRelativeError(normalizer=array_ops.zeros_like(y_true))780    self.evaluate(variables.variables_initializer(mre_obj.variables))781    result = mre_obj(y_true, y_pred)782    self.assertEqual(self.evaluate(result), 0)783@test_util.run_all_in_graph_and_eager_modes784class MeanIoUTest(test.TestCase):785  def test_config(self):786    m_obj = metrics.MeanIoU(num_classes=2, name='mean_iou')787    self.assertEqual(m_obj.name, 'mean_iou')788    self.assertEqual(m_obj.num_classes, 2)789    m_obj2 = metrics.MeanIoU.from_config(m_obj.get_config())790    self.assertEqual(m_obj2.name, 'mean_iou')791    self.assertEqual(m_obj2.num_classes, 2)792  def test_unweighted(self):793    y_pred = constant_op.constant([0, 1, 0, 1], dtype=dtypes.float32)794    y_true = constant_op.constant([0, 0, 1, 1])795    m_obj = metrics.MeanIoU(num_classes=2)796    self.evaluate(variables.variables_initializer(m_obj.variables))797    result = m_obj(y_true, y_pred)798    # cm = [[1, 1],799    #       [1, 1]]800    # sum_row = [2, 2], sum_col = [2, 2], true_positives = [1, 1]801    # iou = true_positives / (sum_row + sum_col - true_positives))802    expected_result = (1 / (2 + 2 - 1) + 1 / (2 + 2 - 1)) / 2803    self.assertAllClose(self.evaluate(result), expected_result, atol=1e-3)804  def test_weighted(self):805    y_pred = constant_op.constant([0, 1, 0, 1], dtype=dtypes.float32)806    y_true = constant_op.constant([0, 0, 1, 1])807    sample_weight = constant_op.constant([0.2, 0.3, 0.4, 0.1])808    m_obj = metrics.MeanIoU(num_classes=2)809    self.evaluate(variables.variables_initializer(m_obj.variables))810    result = m_obj(y_true, y_pred, sample_weight=sample_weight)811    # cm = [[0.2, 0.3],812    #       [0.4, 0.1]]813    # sum_row = [0.6, 0.4], sum_col = [0.5, 0.5], true_positives = [0.2, 0.1]814    # iou = true_positives / (sum_row + sum_col - true_positives))815    expected_result = (0.2 / (0.6 + 0.5 - 0.2) + 0.1 / (0.4 + 0.5 - 0.1)) / 2816    self.assertAllClose(self.evaluate(result), expected_result, atol=1e-3)817  def test_multi_dim_input(self):818    y_pred = constant_op.constant([[0, 1], [0, 1]], dtype=dtypes.float32)819    y_true = constant_op.constant([[0, 0], [1, 1]])820    sample_weight = constant_op.constant([[0.2, 0.3], [0.4, 0.1]])821    m_obj = metrics.MeanIoU(num_classes=2)822    self.evaluate(variables.variables_initializer(m_obj.variables))823    result = m_obj(y_true, y_pred, sample_weight=sample_weight)824    # cm = [[0.2, 0.3],825    #       [0.4, 0.1]]826    # sum_row = [0.6, 0.4], sum_col = [0.5, 0.5], true_positives = [0.2, 0.1]827    # iou = true_positives / (sum_row + sum_col - true_positives))828    expected_result = (0.2 / (0.6 + 0.5 - 0.2) + 0.1 / (0.4 + 0.5 - 0.1)) / 2829    self.assertAllClose(self.evaluate(result), expected_result, atol=1e-3)830  def test_zero_valid_entries(self):831    m_obj = metrics.MeanIoU(num_classes=2)832    self.evaluate(variables.variables_initializer(m_obj.variables))833    self.assertAllClose(self.evaluate(m_obj.result()), 0, atol=1e-3)834  def test_zero_and_non_zero_entries(self):835    y_pred = constant_op.constant([1], dtype=dtypes.float32)836    y_true = constant_op.constant([1])837    m_obj = metrics.MeanIoU(num_classes=2)838    self.evaluate(variables.variables_initializer(m_obj.variables))839    result = m_obj(y_true, y_pred)840    # cm = [[0, 0],841    #       [0, 1]]842    # sum_row = [0, 1], sum_col = [0, 1], true_positives = [0, 1]843    # iou = true_positives / (sum_row + sum_col - true_positives))844    expected_result = (0 + 1 / (1 + 1 - 1)) / 1845    self.assertAllClose(self.evaluate(result), expected_result, atol=1e-3)846class MeanTensorTest(keras_parameterized.TestCase):847  @test_util.run_in_graph_and_eager_modes848  def test_config(self):849    m = metrics.MeanTensor(name='mean_by_element')850    # check config851    self.assertEqual(m.name, 'mean_by_element')852    self.assertTrue(m.stateful)853    self.assertEqual(m.dtype, dtypes.float32)854    self.assertEqual(len(m.variables), 0)855    with self.assertRaisesRegexp(ValueError, 'does not have any result yet'):856      m.result()857    self.evaluate(m([[3], [5], [3]]))858    self.assertAllEqual(m._shape, [3, 1])859    m2 = metrics.MeanTensor.from_config(m.get_config())860    self.assertEqual(m2.name, 'mean_by_element')861    self.assertTrue(m2.stateful)862    self.assertEqual(m2.dtype, dtypes.float32)863    self.assertEqual(len(m2.variables), 0)864  @test_util.run_in_graph_and_eager_modes865  def test_unweighted(self):866    m = metrics.MeanTensor(dtype=dtypes.float64)867    # check __call__()868    self.assertAllClose(self.evaluate(m([100, 40])), [100, 40])869    self.assertAllClose(self.evaluate(m.total), [100, 40])870    self.assertAllClose(self.evaluate(m.count), [1, 1])871    # check update_state() and result() + state accumulation + tensor input872    update_op = m.update_state(ops.convert_n_to_tensor([1, 5]))873    self.evaluate(update_op)874    self.assertAllClose(self.evaluate(m.result()), [50.5, 22.5])875    self.assertAllClose(self.evaluate(m.total), [101, 45])876    self.assertAllClose(self.evaluate(m.count), [2, 2])877    # check reset_states()878    m.reset_states()879    self.assertAllClose(self.evaluate(m.total), [0, 0])880    self.assertAllClose(self.evaluate(m.count), [0, 0])881  @test_util.run_in_graph_and_eager_modes882  def test_weighted(self):883    m = metrics.MeanTensor(dtype=dtypes.float64)884    self.assertEqual(m.dtype, dtypes.float64)885    # check scalar weight886    result_t = m([100, 30], sample_weight=0.5)887    self.assertAllClose(self.evaluate(result_t), [100, 30])888    self.assertAllClose(self.evaluate(m.total), [50, 15])889    self.assertAllClose(self.evaluate(m.count), [0.5, 0.5])890    # check weights not scalar and weights rank matches values rank891    result_t = m([1, 5], sample_weight=[1, 0.2])892    result = self.evaluate(result_t)893    self.assertAllClose(result, [51 / 1.5, 16 / 0.7], 2)894    self.assertAllClose(self.evaluate(m.total), [51, 16])895    self.assertAllClose(self.evaluate(m.count), [1.5, 0.7])896    # check weights broadcast897    result_t = m([1, 2], sample_weight=0.5)898    self.assertAllClose(self.evaluate(result_t), [51.5 / 2, 17 / 1.2])899    self.assertAllClose(self.evaluate(m.total), [51.5, 17])900    self.assertAllClose(self.evaluate(m.count), [2, 1.2])901    # check weights squeeze902    result_t = m([1, 5], sample_weight=[[1], [0.2]])903    self.assertAllClose(self.evaluate(result_t), [52.5 / 3, 18 / 1.4])904    self.assertAllClose(self.evaluate(m.total), [52.5, 18])905    self.assertAllClose(self.evaluate(m.count), [3, 1.4])906    # check weights expand907    m = metrics.MeanTensor((2, 1), dtype=dtypes.float64)908    self.evaluate(variables.variables_initializer(m.variables))909    result_t = m([[1], [5]], sample_weight=[1, 0.2])910    self.assertAllClose(self.evaluate(result_t), [[1], [5]])911    self.assertAllClose(self.evaluate(m.total), [[1], [1]])912    self.assertAllClose(self.evaluate(m.count), [[1], [0.2]])913  @test_util.run_in_graph_and_eager_modes914  def test_invalid_value_shape(self):915    m = metrics.MeanTensor(dtype=dtypes.float64)916    m([1])917    with self.assertRaisesRegexp(918        ValueError, 'MeanTensor input values must always have the same shape'):919      m([1, 5])920  @test_util.run_in_graph_and_eager_modes921  def test_build_in_tf_function(self):922    """Ensure that variables are created correctly in a tf function."""923    m = metrics.MeanTensor(dtype=dtypes.float64)924    @eager_function.defun925    def call_metric(x):926      return m(x)927    self.assertAllClose(self.evaluate(call_metric([100, 40])), [100, 40])928    self.assertAllClose(self.evaluate(m.total), [100, 40])929    self.assertAllClose(self.evaluate(m.count), [1, 1])930    self.assertAllClose(self.evaluate(call_metric([20, 2])), [60, 21])931  def test_in_keras_model(self):932    with context.eager_mode():933      class ModelWithMetric(Model):934        def __init__(self):935          super(ModelWithMetric, self).__init__()936          self.dense1 = layers.Dense(937              3, activation='relu', kernel_initializer='ones')938          self.dense2 = layers.Dense(939              1, activation='sigmoid', kernel_initializer='ones')940          self.mean_tensor = metrics.MeanTensor()941        def call(self, x):942          x = self.dense1(x)943          x = self.dense2(x)944          self.mean_tensor(self.dense1.kernel)945          return x946      model = ModelWithMetric()947      model.compile(948          loss='mae',949          optimizer='rmsprop',950          run_eagerly=True)951      x = np.ones((100, 4))952      y = np.zeros((100, 1))953      model.evaluate(x, y, batch_size=50)954      self.assertAllClose(self.evaluate(model.mean_tensor.result()),955                          np.ones((4, 3)))956      self.assertAllClose(self.evaluate(model.mean_tensor.total),957                          np.full((4, 3), 2))958      self.assertAllClose(self.evaluate(model.mean_tensor.count),959                          np.full((4, 3), 2))960      model.evaluate(x, y, batch_size=25)961      self.assertAllClose(self.evaluate(model.mean_tensor.result()),962                          np.ones((4, 3)))963      self.assertAllClose(self.evaluate(model.mean_tensor.total),964                          np.full((4, 3), 4))965      self.assertAllClose(self.evaluate(model.mean_tensor.count),966                          np.full((4, 3), 4))967@test_util.run_all_in_graph_and_eager_modes968class BinaryCrossentropyTest(test.TestCase):969  def test_config(self):970    bce_obj = metrics.BinaryCrossentropy(971        name='bce', dtype=dtypes.int32, label_smoothing=0.2)972    self.assertEqual(bce_obj.name, 'bce')973    self.assertEqual(bce_obj._dtype, dtypes.int32)974    old_config = bce_obj.get_config()975    self.assertAllClose(self.evaluate(old_config['label_smoothing']), 0.2, 1e-3)976    # Check save and restore config977    bce_obj2 = metrics.BinaryCrossentropy.from_config(old_config)978    self.assertEqual(bce_obj2.name, 'bce')979    self.assertEqual(bce_obj2._dtype, dtypes.int32)980    new_config = bce_obj2.get_config()981    self.assertAllClose(self.evaluate(new_config['label_smoothing']), 0.2, 1e-3)982  def test_unweighted(self):983    bce_obj = metrics.BinaryCrossentropy()984    self.evaluate(variables.variables_initializer(bce_obj.variables))985    y_true = np.asarray([1, 0, 1, 0]).reshape([2, 2])986    y_pred = np.asarray([1, 1, 1, 0], dtype=np.float32).reshape([2, 2])987    result = bce_obj(y_true, y_pred)988    # EPSILON = 1e-7, y = y_true, y` = y_pred, Y_MAX = 0.9999999989    # y` = clip_ops.clip_by_value(output, EPSILON, 1. - EPSILON)990    # y` = [Y_MAX, Y_MAX, Y_MAX, EPSILON]991    # Metric = -(y log(y` + EPSILON) + (1 - y) log(1 - y` + EPSILON))992    #        = [-log(Y_MAX + EPSILON), -log(1 - Y_MAX + EPSILON),993    #           -log(Y_MAX + EPSILON), -log(1)]994    #        = [(0 + 15.33) / 2, (0 + 0) / 2]995    # Reduced metric = 7.665 / 2996    self.assertAllClose(self.evaluate(result), 3.833, atol=1e-3)997  def test_unweighted_with_logits(self):998    bce_obj = metrics.BinaryCrossentropy(from_logits=True)999    self.evaluate(variables.variables_initializer(bce_obj.variables))1000    y_true = constant_op.constant([[1, 0, 1], [0, 1, 1]])1001    y_pred = constant_op.constant([[100.0, -100.0, 100.0],1002                                   [100.0, 100.0, -100.0]])1003    result = bce_obj(y_true, y_pred)1004    # Metric = max(x, 0) - x * z + log(1 + exp(-abs(x)))1005    #              (where x = logits and z = y_true)1006    #        = [((100 - 100 * 1 + log(1 + exp(-100))) +1007    #            (0 + 100 * 0 + log(1 + exp(-100))) +1008    #            (100 - 100 * 1 + log(1 + exp(-100))),1009    #           ((100 - 100 * 0 + log(1 + exp(-100))) +1010    #            (100 - 100 * 1 + log(1 + exp(-100))) +1011    #            (0 + 100 * 1 + log(1 + exp(-100))))]1012    #        = [(0 + 0 + 0) / 3, 200 / 3]1013    # Reduced metric = (0 + 66.666) / 21014    self.assertAllClose(self.evaluate(result), 33.333, atol=1e-3)1015  def test_weighted(self):1016    bce_obj = metrics.BinaryCrossentropy()1017    self.evaluate(variables.variables_initializer(bce_obj.variables))1018    y_true = np.asarray([1, 0, 1, 0]).reshape([2, 2])1019    y_pred = np.asarray([1, 1, 1, 0], dtype=np.float32).reshape([2, 2])1020    sample_weight = constant_op.constant([1.5, 2.])1021    result = bce_obj(y_true, y_pred, sample_weight=sample_weight)1022    # EPSILON = 1e-7, y = y_true, y` = y_pred, Y_MAX = 0.99999991023    # y` = clip_ops.clip_by_value(output, EPSILON, 1. - EPSILON)1024    # y` = [Y_MAX, Y_MAX, Y_MAX, EPSILON]1025    # Metric = -(y log(y` + EPSILON) + (1 - y) log(1 - y` + EPSILON))1026    #        = [-log(Y_MAX + EPSILON), -log(1 - Y_MAX + EPSILON),1027    #           -log(Y_MAX + EPSILON), -log(1)]1028    #        = [(0 + 15.33) / 2, (0 + 0) / 2]1029    # Weighted metric = [7.665 * 1.5, 0]1030    # Reduced metric = 7.665 * 1.5 / (1.5 + 2)1031    self.assertAllClose(self.evaluate(result), 3.285, atol=1e-3)1032  def test_weighted_from_logits(self):1033    bce_obj = metrics.BinaryCrossentropy(from_logits=True)1034    self.evaluate(variables.variables_initializer(bce_obj.variables))1035    y_true = constant_op.constant([[1, 0, 1], [0, 1, 1]])1036    y_pred = constant_op.constant([[100.0, -100.0, 100.0],1037                                   [100.0, 100.0, -100.0]])1038    sample_weight = constant_op.constant([2., 2.5])1039    result = bce_obj(y_true, y_pred, sample_weight=sample_weight)1040    # Metric = max(x, 0) - x * z + log(1 + exp(-abs(x)))1041    #              (where x = logits and z = y_true)1042    #        = [(0 + 0 + 0) / 3, 200 / 3]1043    # Weighted metric = [0, 66.666 * 2.5]1044    # Reduced metric = 66.666 * 2.5 / (2 + 2.5)1045    self.assertAllClose(self.evaluate(result), 37.037, atol=1e-3)1046  def test_label_smoothing(self):1047    logits = constant_op.constant(((100., -100., -100.)))1048    y_true = constant_op.constant(((1, 0, 1)))1049    label_smoothing = 0.11050    # Metric: max(x, 0) - x * z + log(1 + exp(-abs(x)))1051    #             (where x = logits and z = y_true)1052    # Label smoothing: z' = z * (1 - L) + 0.5L1053    # After label smoothing, label 1 becomes 1 - 0.5L1054    #                        label 0 becomes 0.5L1055    # Applying the above two fns to the given input:1056    # (100 - 100 * (1 - 0.5 L)  + 0 +1057    #  0   + 100 * (0.5 L)      + 0 +1058    #  0   + 100 * (1 - 0.5 L)  + 0) * (1/3)1059    #  = (100 + 50L) * 1/31060    bce_obj = metrics.BinaryCrossentropy(1061        from_logits=True, label_smoothing=label_smoothing)1062    self.evaluate(variables.variables_initializer(bce_obj.variables))1063    result = bce_obj(y_true, logits)1064    expected_value = (100.0 + 50.0 * label_smoothing) / 3.01065    self.assertAllClose(expected_value, self.evaluate(result), atol=1e-3)1066def _get_model(compile_metrics):1067  model_layers = [1068      layers.Dense(3, activation='relu', kernel_initializer='ones'),1069      layers.Dense(1, activation='sigmoid', kernel_initializer='ones')]1070  model = testing_utils.get_model_from_layers(model_layers, input_shape=(4,))1071  model.compile(1072      loss='mae',1073      metrics=compile_metrics,1074      optimizer='rmsprop',1075      run_eagerly=testing_utils.should_run_eagerly())1076  return model1077@keras_parameterized.run_with_all_model_types1078@keras_parameterized.run_all_keras_modes1079class ResetStatesTest(keras_parameterized.TestCase):1080  def test_reset_states_false_positives(self):1081    fp_obj = metrics.FalsePositives()1082    model = _get_model([fp_obj])1083    x = np.ones((100, 4))1084    y = np.zeros((100, 1))1085    model.evaluate(x, y)1086    self.assertEqual(self.evaluate(fp_obj.accumulator), 100.)1087    model.evaluate(x, y)1088    self.assertEqual(self.evaluate(fp_obj.accumulator), 100.)1089  def test_reset_states_false_negatives(self):1090    fn_obj = metrics.FalseNegatives()1091    model = _get_model([fn_obj])1092    x = np.zeros((100, 4))1093    y = np.ones((100, 1))1094    model.evaluate(x, y)1095    self.assertEqual(self.evaluate(fn_obj.accumulator), 100.)1096    model.evaluate(x, y)1097    self.assertEqual(self.evaluate(fn_obj.accumulator), 100.)1098  def test_reset_states_true_negatives(self):1099    tn_obj = metrics.TrueNegatives()1100    model = _get_model([tn_obj])1101    x = np.zeros((100, 4))1102    y = np.zeros((100, 1))1103    model.evaluate(x, y)1104    self.assertEqual(self.evaluate(tn_obj.accumulator), 100.)1105    model.evaluate(x, y)1106    self.assertEqual(self.evaluate(tn_obj.accumulator), 100.)1107  def test_reset_states_true_positives(self):1108    tp_obj = metrics.TruePositives()1109    model = _get_model([tp_obj])1110    x = np.ones((100, 4))1111    y = np.ones((100, 1))1112    model.evaluate(x, y)1113    self.assertEqual(self.evaluate(tp_obj.accumulator), 100.)1114    model.evaluate(x, y)1115    self.assertEqual(self.evaluate(tp_obj.accumulator), 100.)1116  def test_reset_states_precision(self):1117    p_obj = metrics.Precision()1118    model = _get_model([p_obj])1119    x = np.concatenate((np.ones((50, 4)), np.ones((50, 4))))1120    y = np.concatenate((np.ones((50, 1)), np.zeros((50, 1))))1121    model.evaluate(x, y)1122    self.assertEqual(self.evaluate(p_obj.true_positives), 50.)1123    self.assertEqual(self.evaluate(p_obj.false_positives), 50.)1124    model.evaluate(x, y)1125    self.assertEqual(self.evaluate(p_obj.true_positives), 50.)1126    self.assertEqual(self.evaluate(p_obj.false_positives), 50.)1127  def test_reset_states_recall(self):1128    r_obj = metrics.Recall()1129    model = _get_model([r_obj])1130    x = np.concatenate((np.ones((50, 4)), np.zeros((50, 4))))1131    y = np.concatenate((np.ones((50, 1)), np.ones((50, 1))))1132    model.evaluate(x, y)1133    self.assertEqual(self.evaluate(r_obj.true_positives), 50.)1134    self.assertEqual(self.evaluate(r_obj.false_negatives), 50.)1135    model.evaluate(x, y)1136    self.assertEqual(self.evaluate(r_obj.true_positives), 50.)1137    self.assertEqual(self.evaluate(r_obj.false_negatives), 50.)1138  def test_reset_states_sensitivity_at_specificity(self):1139    s_obj = metrics.SensitivityAtSpecificity(0.5, num_thresholds=1)1140    model = _get_model([s_obj])1141    x = np.concatenate((np.ones((25, 4)), np.zeros((25, 4)), np.zeros((25, 4)),1142                        np.ones((25, 4))))1143    y = np.concatenate((np.ones((25, 1)), np.zeros((25, 1)), np.ones((25, 1)),1144                        np.zeros((25, 1))))1145    for _ in range(2):1146      model.evaluate(x, y)1147      self.assertEqual(self.evaluate(s_obj.true_positives), 25.)1148      self.assertEqual(self.evaluate(s_obj.false_positives), 25.)1149      self.assertEqual(self.evaluate(s_obj.false_negatives), 25.)1150      self.assertEqual(self.evaluate(s_obj.true_negatives), 25.)1151  def test_reset_states_specificity_at_sensitivity(self):1152    s_obj = metrics.SpecificityAtSensitivity(0.5, num_thresholds=1)1153    model = _get_model([s_obj])1154    x = np.concatenate((np.ones((25, 4)), np.zeros((25, 4)), np.zeros((25, 4)),1155                        np.ones((25, 4))))1156    y = np.concatenate((np.ones((25, 1)), np.zeros((25, 1)), np.ones((25, 1)),1157                        np.zeros((25, 1))))1158    for _ in range(2):1159      model.evaluate(x, y)1160      self.assertEqual(self.evaluate(s_obj.true_positives), 25.)1161      self.assertEqual(self.evaluate(s_obj.false_positives), 25.)1162      self.assertEqual(self.evaluate(s_obj.false_negatives), 25.)1163      self.assertEqual(self.evaluate(s_obj.true_negatives), 25.)1164  def test_reset_states_auc(self):1165    auc_obj = metrics.AUC(num_thresholds=3)1166    model = _get_model([auc_obj])1167    x = np.concatenate((np.ones((25, 4)), np.zeros((25, 4)), np.zeros((25, 4)),1168                        np.ones((25, 4))))1169    y = np.concatenate((np.ones((25, 1)), np.zeros((25, 1)), np.ones((25, 1)),1170                        np.zeros((25, 1))))1171    for _ in range(2):1172      model.evaluate(x, y)1173      self.assertEqual(self.evaluate(auc_obj.true_positives[1]), 25.)1174      self.assertEqual(self.evaluate(auc_obj.false_positives[1]), 25.)1175      self.assertEqual(self.evaluate(auc_obj.false_negatives[1]), 25.)1176      self.assertEqual(self.evaluate(auc_obj.true_negatives[1]), 25.)1177  def test_reset_states_mean_iou(self):1178    m_obj = metrics.MeanIoU(num_classes=2)1179    model = _get_model([m_obj])1180    x = np.asarray([[0, 0, 0, 0], [1, 1, 1, 1], [1, 0, 1, 0], [0, 1, 0, 1]],1181                   dtype=np.float32)1182    y = np.asarray([[0], [1], [1], [1]], dtype=np.float32)1183    model.evaluate(x, y)1184    self.assertArrayNear(self.evaluate(m_obj.total_cm)[0], [1, 0], 1e-1)1185    self.assertArrayNear(self.evaluate(m_obj.total_cm)[1], [3, 0], 1e-1)1186    model.evaluate(x, y)1187    self.assertArrayNear(self.evaluate(m_obj.total_cm)[0], [1, 0], 1e-1)1188    self.assertArrayNear(self.evaluate(m_obj.total_cm)[1], [3, 0], 1e-1)1189if __name__ == '__main__':...

metrics_confusion_matrix_test.py

Source:metrics_confusion_matrix_test.py

...40    self.assertEqual(len(fp_obj2.variables), 1)41    self.assertEqual(fp_obj2.thresholds, [0.4, 0.9])42  def test_unweighted(self):43    fp_obj = metrics.FalsePositives()44    self.evaluate(variables.variables_initializer(fp_obj.variables))45    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),46                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))47    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),48                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))49    update_op = fp_obj.update_state(y_true, y_pred)50    self.evaluate(update_op)51    result = fp_obj.result()52    self.assertAllClose(7., result)53  def test_weighted(self):54    fp_obj = metrics.FalsePositives()55    self.evaluate(variables.variables_initializer(fp_obj.variables))56    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),57                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))58    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),59                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))60    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))61    result = fp_obj(y_true, y_pred, sample_weight=sample_weight)62    self.assertAllClose(14., self.evaluate(result))63  def test_unweighted_with_thresholds(self):64    fp_obj = metrics.FalsePositives(thresholds=[0.15, 0.5, 0.85])65    self.evaluate(variables.variables_initializer(fp_obj.variables))66    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),67                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))68    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),69                                   (1, 1, 1, 1)))70    update_op = fp_obj.update_state(y_true, y_pred)71    self.evaluate(update_op)72    result = fp_obj.result()73    self.assertAllClose([7., 4., 2.], result)74  def test_weighted_with_thresholds(self):75    fp_obj = metrics.FalsePositives(thresholds=[0.15, 0.5, 0.85])76    self.evaluate(variables.variables_initializer(fp_obj.variables))77    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),78                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))79    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),80                                   (1, 1, 1, 1)))81    sample_weight = ((1.0, 2.0, 3.0, 5.0), (7.0, 11.0, 13.0, 17.0),82                     (19.0, 23.0, 29.0, 31.0), (5.0, 15.0, 10.0, 0))83    result = fp_obj(y_true, y_pred, sample_weight=sample_weight)84    self.assertAllClose([125., 42., 12.], self.evaluate(result))85  def test_threshold_limit(self):86    with self.assertRaisesRegexp(87        ValueError,88        r'Threshold values must be in \[0, 1\]. Invalid values: \[-1, 2\]'):89      metrics.FalsePositives(thresholds=[-1, 0.5, 2])90    with self.assertRaisesRegexp(91        ValueError,92        r'Threshold values must be in \[0, 1\]. Invalid values: \[None\]'):93      metrics.FalsePositives(thresholds=[None])94@test_util.run_all_in_graph_and_eager_modes95class FalseNegativesTest(test.TestCase):96  def test_config(self):97    fn_obj = metrics.FalseNegatives(name='my_fn', thresholds=[0.4, 0.9])98    self.assertEqual(fn_obj.name, 'my_fn')99    self.assertEqual(len(fn_obj.variables), 1)100    self.assertEqual(fn_obj.thresholds, [0.4, 0.9])101    # Check save and restore config102    fn_obj2 = metrics.FalseNegatives.from_config(fn_obj.get_config())103    self.assertEqual(fn_obj2.name, 'my_fn')104    self.assertEqual(len(fn_obj2.variables), 1)105    self.assertEqual(fn_obj2.thresholds, [0.4, 0.9])106  def test_unweighted(self):107    fn_obj = metrics.FalseNegatives()108    self.evaluate(variables.variables_initializer(fn_obj.variables))109    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),110                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))111    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),112                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))113    update_op = fn_obj.update_state(y_true, y_pred)114    self.evaluate(update_op)115    result = fn_obj.result()116    self.assertAllClose(3., result)117  def test_weighted(self):118    fn_obj = metrics.FalseNegatives()119    self.evaluate(variables.variables_initializer(fn_obj.variables))120    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),121                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))122    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),123                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))124    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))125    result = fn_obj(y_true, y_pred, sample_weight=sample_weight)126    self.assertAllClose(5., self.evaluate(result))127  def test_unweighted_with_thresholds(self):128    fn_obj = metrics.FalseNegatives(thresholds=[0.15, 0.5, 0.85])129    self.evaluate(variables.variables_initializer(fn_obj.variables))130    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),131                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))132    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),133                                   (1, 1, 1, 1)))134    update_op = fn_obj.update_state(y_true, y_pred)135    self.evaluate(update_op)136    result = fn_obj.result()137    self.assertAllClose([1., 4., 6.], result)138  def test_weighted_with_thresholds(self):139    fn_obj = metrics.FalseNegatives(thresholds=[0.15, 0.5, 0.85])140    self.evaluate(variables.variables_initializer(fn_obj.variables))141    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),142                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))143    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),144                                   (1, 1, 1, 1)))145    sample_weight = ((3.0,), (5.0,), (7.0,), (4.0,))146    result = fn_obj(y_true, y_pred, sample_weight=sample_weight)147    self.assertAllClose([4., 16., 23.], self.evaluate(result))148@test_util.run_all_in_graph_and_eager_modes149class TrueNegativesTest(test.TestCase):150  def test_config(self):151    tn_obj = metrics.TrueNegatives(name='my_tn', thresholds=[0.4, 0.9])152    self.assertEqual(tn_obj.name, 'my_tn')153    self.assertEqual(len(tn_obj.variables), 1)154    self.assertEqual(tn_obj.thresholds, [0.4, 0.9])155    # Check save and restore config156    tn_obj2 = metrics.TrueNegatives.from_config(tn_obj.get_config())157    self.assertEqual(tn_obj2.name, 'my_tn')158    self.assertEqual(len(tn_obj2.variables), 1)159    self.assertEqual(tn_obj2.thresholds, [0.4, 0.9])160  def test_unweighted(self):161    tn_obj = metrics.TrueNegatives()162    self.evaluate(variables.variables_initializer(tn_obj.variables))163    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),164                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))165    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),166                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))167    update_op = tn_obj.update_state(y_true, y_pred)168    self.evaluate(update_op)169    result = tn_obj.result()170    self.assertAllClose(3., result)171  def test_weighted(self):172    tn_obj = metrics.TrueNegatives()173    self.evaluate(variables.variables_initializer(tn_obj.variables))174    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),175                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))176    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),177                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))178    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))179    result = tn_obj(y_true, y_pred, sample_weight=sample_weight)180    self.assertAllClose(4., self.evaluate(result))181  def test_unweighted_with_thresholds(self):182    tn_obj = metrics.TrueNegatives(thresholds=[0.15, 0.5, 0.85])183    self.evaluate(variables.variables_initializer(tn_obj.variables))184    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),185                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))186    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),187                                   (1, 1, 1, 1)))188    update_op = tn_obj.update_state(y_true, y_pred)189    self.evaluate(update_op)190    result = tn_obj.result()191    self.assertAllClose([2., 5., 7.], result)192  def test_weighted_with_thresholds(self):193    tn_obj = metrics.TrueNegatives(thresholds=[0.15, 0.5, 0.85])194    self.evaluate(variables.variables_initializer(tn_obj.variables))195    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),196                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))197    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),198                                   (1, 1, 1, 1)))199    sample_weight = ((0.0, 2.0, 3.0, 5.0),)200    result = tn_obj(y_true, y_pred, sample_weight=sample_weight)201    self.assertAllClose([5., 15., 23.], self.evaluate(result))202@test_util.run_all_in_graph_and_eager_modes203class TruePositivesTest(test.TestCase):204  def test_config(self):205    tp_obj = metrics.TruePositives(name='my_tp', thresholds=[0.4, 0.9])206    self.assertEqual(tp_obj.name, 'my_tp')207    self.assertEqual(len(tp_obj.variables), 1)208    self.assertEqual(tp_obj.thresholds, [0.4, 0.9])209    # Check save and restore config210    tp_obj2 = metrics.TruePositives.from_config(tp_obj.get_config())211    self.assertEqual(tp_obj2.name, 'my_tp')212    self.assertEqual(len(tp_obj2.variables), 1)213    self.assertEqual(tp_obj2.thresholds, [0.4, 0.9])214  def test_unweighted(self):215    tp_obj = metrics.TruePositives()216    self.evaluate(variables.variables_initializer(tp_obj.variables))217    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),218                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))219    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),220                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))221    update_op = tp_obj.update_state(y_true, y_pred)222    self.evaluate(update_op)223    result = tp_obj.result()224    self.assertAllClose(7., result)225  def test_weighted(self):226    tp_obj = metrics.TruePositives()227    self.evaluate(variables.variables_initializer(tp_obj.variables))228    y_true = constant_op.constant(((0, 1, 0, 1, 0), (0, 0, 1, 1, 1),229                                   (1, 1, 1, 1, 0), (0, 0, 0, 0, 1)))230    y_pred = constant_op.constant(((0, 0, 1, 1, 0), (1, 1, 1, 1, 1),231                                   (0, 1, 0, 1, 0), (1, 1, 1, 1, 1)))232    sample_weight = constant_op.constant((1., 1.5, 2., 2.5))233    result = tp_obj(y_true, y_pred, sample_weight=sample_weight)234    self.assertAllClose(12., self.evaluate(result))235  def test_unweighted_with_thresholds(self):236    tp_obj = metrics.TruePositives(thresholds=[0.15, 0.5, 0.85])237    self.evaluate(variables.variables_initializer(tp_obj.variables))238    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),239                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))240    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),241                                   (1, 1, 1, 1)))242    update_op = tp_obj.update_state(y_true, y_pred)243    self.evaluate(update_op)244    result = tp_obj.result()245    self.assertAllClose([6., 3., 1.], result)246  def test_weighted_with_thresholds(self):247    tp_obj = metrics.TruePositives(thresholds=[0.15, 0.5, 0.85])248    self.evaluate(variables.variables_initializer(tp_obj.variables))249    y_pred = constant_op.constant(((0.9, 0.2, 0.8, 0.1), (0.2, 0.9, 0.7, 0.6),250                                   (0.1, 0.2, 0.4, 0.3), (0, 1, 0.7, 0.3)))251    y_true = constant_op.constant(((0, 1, 1, 0), (1, 0, 0, 0), (0, 0, 0, 0),252                                   (1, 1, 1, 1)))253    result = tp_obj(y_true, y_pred, sample_weight=37.)254    self.assertAllClose([222., 111., 37.], self.evaluate(result))255@test_util.run_all_in_graph_and_eager_modes256class PrecisionTest(test.TestCase):257  def test_config(self):258    p_obj = metrics.Precision(259        name='my_precision', thresholds=[0.4, 0.9], top_k=15, class_id=12)260    self.assertEqual(p_obj.name, 'my_precision')261    self.assertEqual(len(p_obj.variables), 2)262    self.assertEqual([v.name for v in p_obj.variables],263                     ['true_positives:0', 'false_positives:0'])264    self.assertEqual(p_obj.thresholds, [0.4, 0.9])265    self.assertEqual(p_obj.top_k, 15)266    self.assertEqual(p_obj.class_id, 12)267    # Check save and restore config268    p_obj2 = metrics.Precision.from_config(p_obj.get_config())269    self.assertEqual(p_obj2.name, 'my_precision')270    self.assertEqual(len(p_obj2.variables), 2)271    self.assertEqual(p_obj2.thresholds, [0.4, 0.9])272    self.assertEqual(p_obj2.top_k, 15)273    self.assertEqual(p_obj2.class_id, 12)274  def test_value_is_idempotent(self):275    p_obj = metrics.Precision(thresholds=[0.3, 0.72])276    y_pred = random_ops.random_uniform(shape=(10, 3))277    y_true = random_ops.random_uniform(shape=(10, 3))278    update_op = p_obj.update_state(y_true, y_pred)279    self.evaluate(variables.variables_initializer(p_obj.variables))280    # Run several updates.281    for _ in range(10):282      self.evaluate(update_op)283    # Then verify idempotency.284    initial_precision = self.evaluate(p_obj.result())285    for _ in range(10):286      self.assertArrayNear(initial_precision, self.evaluate(p_obj.result()),287                           1e-3)288  def test_unweighted(self):289    p_obj = metrics.Precision()290    y_pred = constant_op.constant([1, 0, 1, 0], shape=(1, 4))291    y_true = constant_op.constant([0, 1, 1, 0], shape=(1, 4))292    self.evaluate(variables.variables_initializer(p_obj.variables))293    result = p_obj(y_true, y_pred)294    self.assertAlmostEqual(0.5, self.evaluate(result))295  def test_unweighted_all_incorrect(self):296    p_obj = metrics.Precision(thresholds=[0.5])297    inputs = np.random.randint(0, 2, size=(100, 1))298    y_pred = constant_op.constant(inputs)299    y_true = constant_op.constant(1 - inputs)300    self.evaluate(variables.variables_initializer(p_obj.variables))301    result = p_obj(y_true, y_pred)302    self.assertAlmostEqual(0, self.evaluate(result))303  def test_weighted(self):304    p_obj = metrics.Precision()305    y_pred = constant_op.constant([[1, 0, 1, 0], [1, 0, 1, 0]])306    y_true = constant_op.constant([[0, 1, 1, 0], [1, 0, 0, 1]])307    self.evaluate(variables.variables_initializer(p_obj.variables))308    result = p_obj(309        y_true,310        y_pred,311        sample_weight=constant_op.constant([[1, 2, 3, 4], [4, 3, 2, 1]]))312    weighted_tp = 3.0 + 4.0313    weighted_positives = (1.0 + 3.0) + (4.0 + 2.0)314    expected_precision = weighted_tp / weighted_positives315    self.assertAlmostEqual(expected_precision, self.evaluate(result))316  def test_div_by_zero(self):317    p_obj = metrics.Precision()318    y_pred = constant_op.constant([0, 0, 0, 0])319    y_true = constant_op.constant([0, 0, 0, 0])320    self.evaluate(variables.variables_initializer(p_obj.variables))321    result = p_obj(y_true, y_pred)322    self.assertEqual(0, self.evaluate(result))323  def test_unweighted_with_threshold(self):324    p_obj = metrics.Precision(thresholds=[0.5, 0.7])325    y_pred = constant_op.constant([1, 0, 0.6, 0], shape=(1, 4))326    y_true = constant_op.constant([0, 1, 1, 0], shape=(1, 4))327    self.evaluate(variables.variables_initializer(p_obj.variables))328    result = p_obj(y_true, y_pred)329    self.assertArrayNear([0.5, 0.], self.evaluate(result), 0)330  def test_weighted_with_threshold(self):331    p_obj = metrics.Precision(thresholds=[0.5, 1.])332    y_true = constant_op.constant([[0, 1], [1, 0]], shape=(2, 2))333    y_pred = constant_op.constant([[1, 0], [0.6, 0]],334                                  shape=(2, 2),335                                  dtype=dtypes.float32)336    weights = constant_op.constant([[4, 0], [3, 1]],337                                   shape=(2, 2),338                                   dtype=dtypes.float32)339    self.evaluate(variables.variables_initializer(p_obj.variables))340    result = p_obj(y_true, y_pred, sample_weight=weights)341    weighted_tp = 0 + 3.342    weighted_positives = (0 + 3.) + (4. + 0.)343    expected_precision = weighted_tp / weighted_positives344    self.assertArrayNear([expected_precision, 0], self.evaluate(result), 1e-3)345  def test_multiple_updates(self):346    p_obj = metrics.Precision(thresholds=[0.5, 1.])347    y_true = constant_op.constant([[0, 1], [1, 0]], shape=(2, 2))348    y_pred = constant_op.constant([[1, 0], [0.6, 0]],349                                  shape=(2, 2),350                                  dtype=dtypes.float32)351    weights = constant_op.constant([[4, 0], [3, 1]],352                                   shape=(2, 2),353                                   dtype=dtypes.float32)354    self.evaluate(variables.variables_initializer(p_obj.variables))355    update_op = p_obj.update_state(y_true, y_pred, sample_weight=weights)356    for _ in range(2):357      self.evaluate(update_op)358    weighted_tp = (0 + 3.) + (0 + 3.)359    weighted_positives = ((0 + 3.) + (4. + 0.)) + ((0 + 3.) + (4. + 0.))360    expected_precision = weighted_tp / weighted_positives361    self.assertArrayNear([expected_precision, 0], self.evaluate(p_obj.result()),362                         1e-3)363  def test_unweighted_top_k(self):364    p_obj = metrics.Precision(top_k=3)365    y_pred = constant_op.constant([0.2, 0.1, 0.5, 0, 0.2], shape=(1, 5))366    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))367    self.evaluate(variables.variables_initializer(p_obj.variables))368    result = p_obj(y_true, y_pred)369    self.assertAlmostEqual(1. / 3, self.evaluate(result))370  def test_weighted_top_k(self):371    p_obj = metrics.Precision(top_k=3)372    y_pred1 = constant_op.constant([0.2, 0.1, 0.4, 0, 0.2], shape=(1, 5))373    y_true1 = constant_op.constant([0, 1, 1, 0, 1], shape=(1, 5))374    self.evaluate(variables.variables_initializer(p_obj.variables))375    self.evaluate(376        p_obj(377            y_true1,378            y_pred1,379            sample_weight=constant_op.constant([[1, 4, 2, 3, 5]])))380    y_pred2 = constant_op.constant([0.2, 0.6, 0.4, 0.2, 0.2], shape=(1, 5))381    y_true2 = constant_op.constant([1, 0, 1, 1, 1], shape=(1, 5))382    result = p_obj(y_true2, y_pred2, sample_weight=constant_op.constant(3))383    tp = (2 + 5) + (3 + 3)384    predicted_positives = (1 + 2 + 5) + (3 + 3 + 3)385    expected_precision = tp / predicted_positives386    self.assertAlmostEqual(expected_precision, self.evaluate(result))387  def test_unweighted_class_id(self):388    p_obj = metrics.Precision(class_id=2)389    self.evaluate(variables.variables_initializer(p_obj.variables))390    y_pred = constant_op.constant([0.2, 0.1, 0.6, 0, 0.2], shape=(1, 5))391    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))392    result = p_obj(y_true, y_pred)393    self.assertAlmostEqual(1, self.evaluate(result))394    self.assertAlmostEqual(1, self.evaluate(p_obj.true_positives))395    self.assertAlmostEqual(0, self.evaluate(p_obj.false_positives))396    y_pred = constant_op.constant([0.2, 0.1, 0, 0, 0.2], shape=(1, 5))397    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))398    result = p_obj(y_true, y_pred)399    self.assertAlmostEqual(1, self.evaluate(result))400    self.assertAlmostEqual(1, self.evaluate(p_obj.true_positives))401    self.assertAlmostEqual(0, self.evaluate(p_obj.false_positives))402    y_pred = constant_op.constant([0.2, 0.1, 0.6, 0, 0.2], shape=(1, 5))403    y_true = constant_op.constant([0, 1, 0, 0, 0], shape=(1, 5))404    result = p_obj(y_true, y_pred)405    self.assertAlmostEqual(0.5, self.evaluate(result))406    self.assertAlmostEqual(1, self.evaluate(p_obj.true_positives))407    self.assertAlmostEqual(1, self.evaluate(p_obj.false_positives))408  def test_unweighted_top_k_and_class_id(self):409    p_obj = metrics.Precision(class_id=2, top_k=2)410    self.evaluate(variables.variables_initializer(p_obj.variables))411    y_pred = constant_op.constant([0.2, 0.6, 0.3, 0, 0.2], shape=(1, 5))412    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))413    result = p_obj(y_true, y_pred)414    self.assertAlmostEqual(1, self.evaluate(result))415    self.assertAlmostEqual(1, self.evaluate(p_obj.true_positives))416    self.assertAlmostEqual(0, self.evaluate(p_obj.false_positives))417    y_pred = constant_op.constant([1, 1, 0.9, 1, 1], shape=(1, 5))418    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))419    result = p_obj(y_true, y_pred)420    self.assertAlmostEqual(1, self.evaluate(result))421    self.assertAlmostEqual(1, self.evaluate(p_obj.true_positives))422    self.assertAlmostEqual(0, self.evaluate(p_obj.false_positives))423  def test_unweighted_top_k_and_threshold(self):424    p_obj = metrics.Precision(thresholds=.7, top_k=2)425    self.evaluate(variables.variables_initializer(p_obj.variables))426    y_pred = constant_op.constant([0.2, 0.8, 0.6, 0, 0.2], shape=(1, 5))427    y_true = constant_op.constant([0, 1, 1, 0, 1], shape=(1, 5))428    result = p_obj(y_true, y_pred)429    self.assertAlmostEqual(1, self.evaluate(result))430    self.assertAlmostEqual(1, self.evaluate(p_obj.true_positives))431    self.assertAlmostEqual(0, self.evaluate(p_obj.false_positives))432@test_util.run_all_in_graph_and_eager_modes433class RecallTest(test.TestCase):434  def test_config(self):435    r_obj = metrics.Recall(436        name='my_recall', thresholds=[0.4, 0.9], top_k=15, class_id=12)437    self.assertEqual(r_obj.name, 'my_recall')438    self.assertEqual(len(r_obj.variables), 2)439    self.assertEqual([v.name for v in r_obj.variables],440                     ['true_positives:0', 'false_negatives:0'])441    self.assertEqual(r_obj.thresholds, [0.4, 0.9])442    self.assertEqual(r_obj.top_k, 15)443    self.assertEqual(r_obj.class_id, 12)444    # Check save and restore config445    r_obj2 = metrics.Recall.from_config(r_obj.get_config())446    self.assertEqual(r_obj2.name, 'my_recall')447    self.assertEqual(len(r_obj2.variables), 2)448    self.assertEqual(r_obj2.thresholds, [0.4, 0.9])449    self.assertEqual(r_obj2.top_k, 15)450    self.assertEqual(r_obj2.class_id, 12)451  def test_value_is_idempotent(self):452    r_obj = metrics.Recall(thresholds=[0.3, 0.72])453    y_pred = random_ops.random_uniform(shape=(10, 3))454    y_true = random_ops.random_uniform(shape=(10, 3))455    update_op = r_obj.update_state(y_true, y_pred)456    self.evaluate(variables.variables_initializer(r_obj.variables))457    # Run several updates.458    for _ in range(10):459      self.evaluate(update_op)460    # Then verify idempotency.461    initial_recall = self.evaluate(r_obj.result())462    for _ in range(10):463      self.assertArrayNear(initial_recall, self.evaluate(r_obj.result()), 1e-3)464  def test_unweighted(self):465    r_obj = metrics.Recall()466    y_pred = constant_op.constant([1, 0, 1, 0], shape=(1, 4))467    y_true = constant_op.constant([0, 1, 1, 0], shape=(1, 4))468    self.evaluate(variables.variables_initializer(r_obj.variables))469    result = r_obj(y_true, y_pred)470    self.assertAlmostEqual(0.5, self.evaluate(result))471  def test_unweighted_all_incorrect(self):472    r_obj = metrics.Recall(thresholds=[0.5])473    inputs = np.random.randint(0, 2, size=(100, 1))474    y_pred = constant_op.constant(inputs)475    y_true = constant_op.constant(1 - inputs)476    self.evaluate(variables.variables_initializer(r_obj.variables))477    result = r_obj(y_true, y_pred)478    self.assertAlmostEqual(0, self.evaluate(result))479  def test_weighted(self):480    r_obj = metrics.Recall()481    y_pred = constant_op.constant([[1, 0, 1, 0], [0, 1, 0, 1]])482    y_true = constant_op.constant([[0, 1, 1, 0], [1, 0, 0, 1]])483    self.evaluate(variables.variables_initializer(r_obj.variables))484    result = r_obj(485        y_true,486        y_pred,487        sample_weight=constant_op.constant([[1, 2, 3, 4], [4, 3, 2, 1]]))488    weighted_tp = 3.0 + 1.0489    weighted_t = (2.0 + 3.0) + (4.0 + 1.0)490    expected_recall = weighted_tp / weighted_t491    self.assertAlmostEqual(expected_recall, self.evaluate(result))492  def test_div_by_zero(self):493    r_obj = metrics.Recall()494    y_pred = constant_op.constant([0, 0, 0, 0])495    y_true = constant_op.constant([0, 0, 0, 0])496    self.evaluate(variables.variables_initializer(r_obj.variables))497    result = r_obj(y_true, y_pred)498    self.assertEqual(0, self.evaluate(result))499  def test_unweighted_with_threshold(self):500    r_obj = metrics.Recall(thresholds=[0.5, 0.7])501    y_pred = constant_op.constant([1, 0, 0.6, 0], shape=(1, 4))502    y_true = constant_op.constant([0, 1, 1, 0], shape=(1, 4))503    self.evaluate(variables.variables_initializer(r_obj.variables))504    result = r_obj(y_true, y_pred)505    self.assertArrayNear([0.5, 0.], self.evaluate(result), 0)506  def test_weighted_with_threshold(self):507    r_obj = metrics.Recall(thresholds=[0.5, 1.])508    y_true = constant_op.constant([[0, 1], [1, 0]], shape=(2, 2))509    y_pred = constant_op.constant([[1, 0], [0.6, 0]],510                                  shape=(2, 2),511                                  dtype=dtypes.float32)512    weights = constant_op.constant([[1, 4], [3, 2]],513                                   shape=(2, 2),514                                   dtype=dtypes.float32)515    self.evaluate(variables.variables_initializer(r_obj.variables))516    result = r_obj(y_true, y_pred, sample_weight=weights)517    weighted_tp = 0 + 3.518    weighted_positives = (0 + 3.) + (4. + 0.)519    expected_recall = weighted_tp / weighted_positives520    self.assertArrayNear([expected_recall, 0], self.evaluate(result), 1e-3)521  def test_multiple_updates(self):522    r_obj = metrics.Recall(thresholds=[0.5, 1.])523    y_true = constant_op.constant([[0, 1], [1, 0]], shape=(2, 2))524    y_pred = constant_op.constant([[1, 0], [0.6, 0]],525                                  shape=(2, 2),526                                  dtype=dtypes.float32)527    weights = constant_op.constant([[1, 4], [3, 2]],528                                   shape=(2, 2),529                                   dtype=dtypes.float32)530    self.evaluate(variables.variables_initializer(r_obj.variables))531    update_op = r_obj.update_state(y_true, y_pred, sample_weight=weights)532    for _ in range(2):533      self.evaluate(update_op)534    weighted_tp = (0 + 3.) + (0 + 3.)535    weighted_positives = ((0 + 3.) + (4. + 0.)) + ((0 + 3.) + (4. + 0.))536    expected_recall = weighted_tp / weighted_positives537    self.assertArrayNear([expected_recall, 0], self.evaluate(r_obj.result()),538                         1e-3)539  def test_unweighted_top_k(self):540    r_obj = metrics.Recall(top_k=3)541    y_pred = constant_op.constant([0.2, 0.1, 0.5, 0, 0.2], shape=(1, 5))542    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))543    self.evaluate(variables.variables_initializer(r_obj.variables))544    result = r_obj(y_true, y_pred)545    self.assertAlmostEqual(0.5, self.evaluate(result))546  def test_weighted_top_k(self):547    r_obj = metrics.Recall(top_k=3)548    y_pred1 = constant_op.constant([0.2, 0.1, 0.4, 0, 0.2], shape=(1, 5))549    y_true1 = constant_op.constant([0, 1, 1, 0, 1], shape=(1, 5))550    self.evaluate(variables.variables_initializer(r_obj.variables))551    self.evaluate(552        r_obj(553            y_true1,554            y_pred1,555            sample_weight=constant_op.constant([[1, 4, 2, 3, 5]])))556    y_pred2 = constant_op.constant([0.2, 0.6, 0.4, 0.2, 0.2], shape=(1, 5))557    y_true2 = constant_op.constant([1, 0, 1, 1, 1], shape=(1, 5))558    result = r_obj(y_true2, y_pred2, sample_weight=constant_op.constant(3))559    tp = (2 + 5) + (3 + 3)560    positives = (4 + 2 + 5) + (3 + 3 + 3 + 3)561    expected_recall = tp / positives562    self.assertAlmostEqual(expected_recall, self.evaluate(result))563  def test_unweighted_class_id(self):564    r_obj = metrics.Recall(class_id=2)565    self.evaluate(variables.variables_initializer(r_obj.variables))566    y_pred = constant_op.constant([0.2, 0.1, 0.6, 0, 0.2], shape=(1, 5))567    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))568    result = r_obj(y_true, y_pred)569    self.assertAlmostEqual(1, self.evaluate(result))570    self.assertAlmostEqual(1, self.evaluate(r_obj.true_positives))571    self.assertAlmostEqual(0, self.evaluate(r_obj.false_negatives))572    y_pred = constant_op.constant([0.2, 0.1, 0, 0, 0.2], shape=(1, 5))573    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))574    result = r_obj(y_true, y_pred)575    self.assertAlmostEqual(0.5, self.evaluate(result))576    self.assertAlmostEqual(1, self.evaluate(r_obj.true_positives))577    self.assertAlmostEqual(1, self.evaluate(r_obj.false_negatives))578    y_pred = constant_op.constant([0.2, 0.1, 0.6, 0, 0.2], shape=(1, 5))579    y_true = constant_op.constant([0, 1, 0, 0, 0], shape=(1, 5))580    result = r_obj(y_true, y_pred)581    self.assertAlmostEqual(0.5, self.evaluate(result))582    self.assertAlmostEqual(1, self.evaluate(r_obj.true_positives))583    self.assertAlmostEqual(1, self.evaluate(r_obj.false_negatives))584  def test_unweighted_top_k_and_class_id(self):585    r_obj = metrics.Recall(class_id=2, top_k=2)586    self.evaluate(variables.variables_initializer(r_obj.variables))587    y_pred = constant_op.constant([0.2, 0.6, 0.3, 0, 0.2], shape=(1, 5))588    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))589    result = r_obj(y_true, y_pred)590    self.assertAlmostEqual(1, self.evaluate(result))591    self.assertAlmostEqual(1, self.evaluate(r_obj.true_positives))592    self.assertAlmostEqual(0, self.evaluate(r_obj.false_negatives))593    y_pred = constant_op.constant([1, 1, 0.9, 1, 1], shape=(1, 5))594    y_true = constant_op.constant([0, 1, 1, 0, 0], shape=(1, 5))595    result = r_obj(y_true, y_pred)596    self.assertAlmostEqual(0.5, self.evaluate(result))597    self.assertAlmostEqual(1, self.evaluate(r_obj.true_positives))598    self.assertAlmostEqual(1, self.evaluate(r_obj.false_negatives))599  def test_unweighted_top_k_and_threshold(self):600    r_obj = metrics.Recall(thresholds=.7, top_k=2)601    self.evaluate(variables.variables_initializer(r_obj.variables))602    y_pred = constant_op.constant([0.2, 0.8, 0.6, 0, 0.2], shape=(1, 5))603    y_true = constant_op.constant([1, 1, 1, 0, 1], shape=(1, 5))604    result = r_obj(y_true, y_pred)605    self.assertAlmostEqual(0.25, self.evaluate(result))606    self.assertAlmostEqual(1, self.evaluate(r_obj.true_positives))607    self.assertAlmostEqual(3, self.evaluate(r_obj.false_negatives))608@test_util.run_all_in_graph_and_eager_modes609class SensitivityAtSpecificityTest(test.TestCase, parameterized.TestCase):610  def test_config(self):611    s_obj = metrics.SensitivityAtSpecificity(612        0.4, num_thresholds=100, name='sensitivity_at_specificity_1')613    self.assertEqual(s_obj.name, 'sensitivity_at_specificity_1')614    self.assertLen(s_obj.variables, 4)615    self.assertEqual(s_obj.specificity, 0.4)616    self.assertEqual(s_obj.num_thresholds, 100)617    # Check save and restore config618    s_obj2 = metrics.SensitivityAtSpecificity.from_config(s_obj.get_config())619    self.assertEqual(s_obj2.name, 'sensitivity_at_specificity_1')620    self.assertLen(s_obj2.variables, 4)621    self.assertEqual(s_obj2.specificity, 0.4)622    self.assertEqual(s_obj2.num_thresholds, 100)623  def test_value_is_idempotent(self):624    s_obj = metrics.SensitivityAtSpecificity(0.7)625    y_pred = random_ops.random_uniform((10, 3),626                                       maxval=1,627                                       dtype=dtypes.float32,628                                       seed=1)629    y_true = random_ops.random_uniform((10, 3),630                                       maxval=2,631                                       dtype=dtypes.int64,632                                       seed=1)633    update_op = s_obj.update_state(y_true, y_pred)634    self.evaluate(variables.variables_initializer(s_obj.variables))635    # Run several updates.636    for _ in range(10):637      self.evaluate(update_op)638    # Then verify idempotency.639    initial_sensitivity = self.evaluate(s_obj.result())640    for _ in range(10):641      self.assertAlmostEqual(initial_sensitivity, self.evaluate(s_obj.result()),642                             1e-3)643  def test_unweighted_all_correct(self):644    s_obj = metrics.SensitivityAtSpecificity(0.7)645    inputs = np.random.randint(0, 2, size=(100, 1))646    y_pred = constant_op.constant(inputs, dtype=dtypes.float32)647    y_true = constant_op.constant(inputs)648    self.evaluate(variables.variables_initializer(s_obj.variables))649    result = s_obj(y_true, y_pred)650    self.assertAlmostEqual(1, self.evaluate(result))651  def test_unweighted_high_specificity(self):652    s_obj = metrics.SensitivityAtSpecificity(0.8)653    pred_values = [0.0, 0.1, 0.2, 0.3, 0.4, 0.1, 0.45, 0.5, 0.8, 0.9]654    label_values = [0, 0, 0, 0, 0, 1, 1, 1, 1, 1]655    y_pred = constant_op.constant(pred_values, dtype=dtypes.float32)656    y_true = constant_op.constant(label_values)657    self.evaluate(variables.variables_initializer(s_obj.variables))658    result = s_obj(y_true, y_pred)659    self.assertAlmostEqual(0.8, self.evaluate(result))660  def test_unweighted_low_specificity(self):661    s_obj = metrics.SensitivityAtSpecificity(0.4)662    pred_values = [0.0, 0.1, 0.2, 0.3, 0.4, 0.01, 0.02, 0.25, 0.26, 0.26]663    label_values = [0, 0, 0, 0, 0, 1, 1, 1, 1, 1]664    y_pred = constant_op.constant(pred_values, dtype=dtypes.float32)665    y_true = constant_op.constant(label_values)666    self.evaluate(variables.variables_initializer(s_obj.variables))667    result = s_obj(y_true, y_pred)668    self.assertAlmostEqual(0.6, self.evaluate(result))669  @parameterized.parameters([dtypes.bool, dtypes.int32, dtypes.float32])670  def test_weighted(self, label_dtype):671    s_obj = metrics.SensitivityAtSpecificity(0.4)672    pred_values = [0.0, 0.1, 0.2, 0.3, 0.4, 0.01, 0.02, 0.25, 0.26, 0.26]673    label_values = [0, 0, 0, 0, 0, 1, 1, 1, 1, 1]674    weight_values = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]675    y_pred = constant_op.constant(pred_values, dtype=dtypes.float32)676    y_true = math_ops.cast(label_values, dtype=label_dtype)677    weights = constant_op.constant(weight_values)678    self.evaluate(variables.variables_initializer(s_obj.variables))679    result = s_obj(y_true, y_pred, sample_weight=weights)680    self.assertAlmostEqual(0.675, self.evaluate(result))681  def test_invalid_specificity(self):682    with self.assertRaisesRegexp(683        ValueError, r'`specificity` must be in the range \[0, 1\].'):684      metrics.SensitivityAtSpecificity(-1)685  def test_invalid_num_thresholds(self):686    with self.assertRaisesRegexp(ValueError, '`num_thresholds` must be > 0.'):687      metrics.SensitivityAtSpecificity(0.4, num_thresholds=-1)688@test_util.run_all_in_graph_and_eager_modes689class SpecificityAtSensitivityTest(test.TestCase, parameterized.TestCase):690  def test_config(self):691    s_obj = metrics.SpecificityAtSensitivity(692        0.4, num_thresholds=100, name='specificity_at_sensitivity_1')693    self.assertEqual(s_obj.name, 'specificity_at_sensitivity_1')694    self.assertLen(s_obj.variables, 4)695    self.assertEqual(s_obj.sensitivity, 0.4)696    self.assertEqual(s_obj.num_thresholds, 100)697    # Check save and restore config698    s_obj2 = metrics.SpecificityAtSensitivity.from_config(s_obj.get_config())699    self.assertEqual(s_obj2.name, 'specificity_at_sensitivity_1')700    self.assertLen(s_obj2.variables, 4)701    self.assertEqual(s_obj2.sensitivity, 0.4)702    self.assertEqual(s_obj2.num_thresholds, 100)703  def test_value_is_idempotent(self):704    s_obj = metrics.SpecificityAtSensitivity(0.7)705    y_pred = random_ops.random_uniform((10, 3),706                                       maxval=1,707                                       dtype=dtypes.float32,708                                       seed=1)709    y_true = random_ops.random_uniform((10, 3),710                                       maxval=2,711                                       dtype=dtypes.int64,712                                       seed=1)713    update_op = s_obj.update_state(y_true, y_pred)714    self.evaluate(variables.variables_initializer(s_obj.variables))715    # Run several updates.716    for _ in range(10):717      self.evaluate(update_op)718    # Then verify idempotency.719    initial_specificity = self.evaluate(s_obj.result())720    for _ in range(10):721      self.assertAlmostEqual(initial_specificity, self.evaluate(s_obj.result()),722                             1e-3)723  def test_unweighted_all_correct(self):724    s_obj = metrics.SpecificityAtSensitivity(0.7)725    inputs = np.random.randint(0, 2, size=(100, 1))726    y_pred = constant_op.constant(inputs, dtype=dtypes.float32)727    y_true = constant_op.constant(inputs)728    self.evaluate(variables.variables_initializer(s_obj.variables))729    result = s_obj(y_true, y_pred)730    self.assertAlmostEqual(1, self.evaluate(result))731  def test_unweighted_high_sensitivity(self):732    s_obj = metrics.SpecificityAtSensitivity(0.8)733    pred_values = [0.0, 0.1, 0.2, 0.3, 0.4, 0.1, 0.45, 0.5, 0.8, 0.9]734    label_values = [0, 0, 0, 0, 0, 1, 1, 1, 1, 1]735    y_pred = constant_op.constant(pred_values, dtype=dtypes.float32)736    y_true = constant_op.constant(label_values)737    self.evaluate(variables.variables_initializer(s_obj.variables))738    result = s_obj(y_true, y_pred)739    self.assertAlmostEqual(0.4, self.evaluate(result))740  def test_unweighted_low_sensitivity(self):741    s_obj = metrics.SpecificityAtSensitivity(0.4)742    pred_values = [0.0, 0.1, 0.2, 0.3, 0.4, 0.01, 0.02, 0.25, 0.26, 0.26]743    label_values = [0, 0, 0, 0, 0, 1, 1, 1, 1, 1]744    y_pred = constant_op.constant(pred_values, dtype=dtypes.float32)745    y_true = constant_op.constant(label_values)746    self.evaluate(variables.variables_initializer(s_obj.variables))747    result = s_obj(y_true, y_pred)748    self.assertAlmostEqual(0.6, self.evaluate(result))749  @parameterized.parameters([dtypes.bool, dtypes.int32, dtypes.float32])750  def test_weighted(self, label_dtype):751    s_obj = metrics.SpecificityAtSensitivity(0.4)752    pred_values = [0.0, 0.1, 0.2, 0.3, 0.4, 0.01, 0.02, 0.25, 0.26, 0.26]753    label_values = [0, 0, 0, 0, 0, 1, 1, 1, 1, 1]754    weight_values = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]755    y_pred = constant_op.constant(pred_values, dtype=dtypes.float32)756    y_true = math_ops.cast(label_values, dtype=label_dtype)757    weights = constant_op.constant(weight_values)758    self.evaluate(variables.variables_initializer(s_obj.variables))759    result = s_obj(y_true, y_pred, sample_weight=weights)760    self.assertAlmostEqual(0.4, self.evaluate(result))761  def test_invalid_sensitivity(self):762    with self.assertRaisesRegexp(763        ValueError, r'`sensitivity` must be in the range \[0, 1\].'):764      metrics.SpecificityAtSensitivity(-1)765  def test_invalid_num_thresholds(self):766    with self.assertRaisesRegexp(ValueError, '`num_thresholds` must be > 0.'):767      metrics.SpecificityAtSensitivity(0.4, num_thresholds=-1)768@test_util.run_all_in_graph_and_eager_modes769class AUCTest(test.TestCase):770  def setup(self):771    self.num_thresholds = 3772    self.y_pred = constant_op.constant([0, 0.5, 0.3, 0.9], dtype=dtypes.float32)773    self.y_true = constant_op.constant([0, 0, 1, 1])774    self.sample_weight = [1, 2, 3, 4]775    # threshold values are [0 - 1e-7, 0.5, 1 + 1e-7]776    # y_pred when threshold = 0 - 1e-7  : [1, 1, 1, 1]777    # y_pred when threshold = 0.5       : [0, 0, 0, 1]778    # y_pred when threshold = 1 + 1e-7  : [0, 0, 0, 0]779    # without sample_weight:780    # tp = np.sum([[0, 0, 1, 1], [0, 0, 0, 1], [0, 0, 0, 0]], axis=1)781    # fp = np.sum([[1, 1, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]], axis=1)782    # fn = np.sum([[0, 0, 0, 0], [0, 0, 1, 0], [0, 0, 1, 1]], axis=1)783    # tn = np.sum([[0, 0, 0, 0], [1, 1, 0, 0], [1, 1, 0, 0]], axis=1)784    # tp = [2, 1, 0], fp = [2, 0, 0], fn = [0, 1, 2], tn = [0, 2, 2]785    # with sample_weight:786    # tp = np.sum([[0, 0, 3, 4], [0, 0, 0, 4], [0, 0, 0, 0]], axis=1)787    # fp = np.sum([[1, 2, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]], axis=1)788    # fn = np.sum([[0, 0, 0, 0], [0, 0, 3, 0], [0, 0, 3, 4]], axis=1)789    # tn = np.sum([[0, 0, 0, 0], [1, 2, 0, 0], [1, 2, 0, 0]], axis=1)790    # tp = [7, 4, 0], fp = [3, 0, 0], fn = [0, 3, 7], tn = [0, 3, 3]791  def test_config(self):792    auc_obj = metrics.AUC(793        num_thresholds=100,794        curve=metrics_utils.AUCCurve.PR,795        summation_method=metrics_utils.AUCSummationMethod.MAJORING,796        name='auc_1')797    self.assertEqual(auc_obj.name, 'auc_1')798    self.assertEqual(len(auc_obj.variables), 4)799    self.assertEqual(auc_obj.num_thresholds, 100)800    self.assertEqual(auc_obj.curve, metrics_utils.AUCCurve.PR)801    self.assertEqual(auc_obj.summation_method,802                     metrics_utils.AUCSummationMethod.MAJORING)803    # Check save and restore config804    auc_obj2 = metrics.AUC.from_config(auc_obj.get_config())805    self.assertEqual(auc_obj2.name, 'auc_1')806    self.assertEqual(len(auc_obj2.variables), 4)807    self.assertEqual(auc_obj2.num_thresholds, 100)808    self.assertEqual(auc_obj2.curve, metrics_utils.AUCCurve.PR)809    self.assertEqual(auc_obj2.summation_method,810                     metrics_utils.AUCSummationMethod.MAJORING)811  def test_value_is_idempotent(self):812    self.setup()813    auc_obj = metrics.AUC(num_thresholds=3)814    self.evaluate(variables.variables_initializer(auc_obj.variables))815    # Run several updates.816    update_op = auc_obj.update_state(self.y_true, self.y_pred)817    for _ in range(10):818      self.evaluate(update_op)819    # Then verify idempotency.820    initial_auc = self.evaluate(auc_obj.result())821    for _ in range(10):822      self.assertAllClose(initial_auc, self.evaluate(auc_obj.result()), 1e-3)823  def test_unweighted_all_correct(self):824    self.setup()825    auc_obj = metrics.AUC()826    self.evaluate(variables.variables_initializer(auc_obj.variables))827    result = auc_obj(self.y_true, self.y_true)828    self.assertEqual(self.evaluate(result), 1)829  def test_unweighted(self):830    self.setup()831    auc_obj = metrics.AUC(num_thresholds=self.num_thresholds)832    self.evaluate(variables.variables_initializer(auc_obj.variables))833    result = auc_obj(self.y_true, self.y_pred)834    # tp = [2, 1, 0], fp = [2, 0, 0], fn = [0, 1, 2], tn = [0, 2, 2]835    # recall = [2/2, 1/(1+1), 0] = [1, 0.5, 0]836    # fp_rate = [2/2, 0, 0] = [1, 0, 0]837    # heights = [(1 + 0.5)/2, (0.5 + 0)/2] = [0.75, 0.25]838    # widths = [(1 - 0), (0 - 0)] = [1, 0]839    expected_result = (0.75 * 1 + 0.25 * 0)840    self.assertAllClose(self.evaluate(result), expected_result, 1e-3)841  def test_weighted_roc_interpolation(self):842    self.setup()843    auc_obj = metrics.AUC(num_thresholds=self.num_thresholds)844    self.evaluate(variables.variables_initializer(auc_obj.variables))845    result = auc_obj(self.y_true, self.y_pred, sample_weight=self.sample_weight)846    # tp = [7, 4, 0], fp = [3, 0, 0], fn = [0, 3, 7], tn = [0, 3, 3]847    # recall = [7/7, 4/(4+3), 0] = [1, 0.571, 0]848    # fp_rate = [3/3, 0, 0] = [1, 0, 0]849    # heights = [(1 + 0.571)/2, (0.571 + 0)/2] = [0.7855, 0.2855]850    # widths = [(1 - 0), (0 - 0)] = [1, 0]851    expected_result = (0.7855 * 1 + 0.2855 * 0)852    self.assertAllClose(self.evaluate(result), expected_result, 1e-3)853  def test_weighted_roc_majoring(self):854    self.setup()855    auc_obj = metrics.AUC(856        num_thresholds=self.num_thresholds,857        summation_method=metrics_utils.AUCSummationMethod.MAJORING)858    self.evaluate(variables.variables_initializer(auc_obj.variables))859    result = auc_obj(self.y_true, self.y_pred, sample_weight=self.sample_weight)860    # tp = [7, 4, 0], fp = [3, 0, 0], fn = [0, 3, 7], tn = [0, 3, 3]861    # recall = [7/7, 4/(4+3), 0] = [1, 0.571, 0]862    # fp_rate = [3/3, 0, 0] = [1, 0, 0]863    # heights = [max(1, 0.571), max(0.571, 0)] = [1, 0.571]864    # widths = [(1 - 0), (0 - 0)] = [1, 0]865    expected_result = (1 * 1 + 0.571 * 0)866    self.assertAllClose(self.evaluate(result), expected_result, 1e-3)867  def test_weighted_roc_minoring(self):868    self.setup()869    auc_obj = metrics.AUC(870        num_thresholds=self.num_thresholds,871        summation_method=metrics_utils.AUCSummationMethod.MINORING)872    self.evaluate(variables.variables_initializer(auc_obj.variables))873    result = auc_obj(self.y_true, self.y_pred, sample_weight=self.sample_weight)874    # tp = [7, 4, 0], fp = [3, 0, 0], fn = [0, 3, 7], tn = [0, 3, 3]875    # recall = [7/7, 4/(4+3), 0] = [1, 0.571, 0]876    # fp_rate = [3/3, 0, 0] = [1, 0, 0]877    # heights = [min(1, 0.571), min(0.571, 0)] = [0.571, 0]878    # widths = [(1 - 0), (0 - 0)] = [1, 0]879    expected_result = (0.571 * 1 + 0 * 0)880    self.assertAllClose(self.evaluate(result), expected_result, 1e-3)881  def test_weighted_pr_majoring(self):882    self.setup()883    auc_obj = metrics.AUC(884        num_thresholds=self.num_thresholds,885        curve=metrics_utils.AUCCurve.PR,886        summation_method=metrics_utils.AUCSummationMethod.MAJORING)887    self.evaluate(variables.variables_initializer(auc_obj.variables))888    result = auc_obj(self.y_true, self.y_pred, sample_weight=self.sample_weight)889    # tp = [7, 4, 0], fp = [3, 0, 0], fn = [0, 3, 7], tn = [0, 3, 3]890    # precision = [7/(7+3), 4/4, 0] = [0.7, 1, 0]891    # recall = [7/7, 4/(4+3), 0] = [1, 0.571, 0]892    # heights = [max(0.7, 1), max(1, 0)] = [1, 1]893    # widths = [(1 - 0.571), (0.571 - 0)] = [0.429, 0.571]894    expected_result = (1 * 0.429 + 1 * 0.571)895    self.assertAllClose(self.evaluate(result), expected_result, 1e-3)896  def test_weighted_pr_minoring(self):897    self.setup()898    auc_obj = metrics.AUC(899        num_thresholds=self.num_thresholds,900        curve=metrics_utils.AUCCurve.PR,901        summation_method=metrics_utils.AUCSummationMethod.MINORING)902    self.evaluate(variables.variables_initializer(auc_obj.variables))903    result = auc_obj(self.y_true, self.y_pred, sample_weight=self.sample_weight)904    # tp = [7, 4, 0], fp = [3, 0, 0], fn = [0, 3, 7], tn = [0, 3, 3]905    # precision = [7/(7+3), 4/4, 0] = [0.7, 1, 0]906    # recall = [7/7, 4/(4+3), 0] = [1, 0.571, 0]907    # heights = [min(0.7, 1), min(1, 0)] = [0.7, 0]908    # widths = [(1 - 0.571), (0.571 - 0)] = [0.429, 0.571]909    expected_result = (0.7 * 0.429 + 0 * 0.571)910    self.assertAllClose(self.evaluate(result), expected_result, 1e-3)911  def test_weighted_pr_interpolation(self):912    self.setup()913    auc_obj = metrics.AUC(914        num_thresholds=self.num_thresholds,915        curve=metrics_utils.AUCCurve.PR,916        summation_method=metrics_utils.AUCSummationMethod.INTERPOLATION)917    self.evaluate(variables.variables_initializer(auc_obj.variables))918    result = auc_obj(self.y_true, self.y_pred, sample_weight=self.sample_weight)919    # auc = (slope / Total Pos) * [dTP - intercept * log(Pb/Pa)]920    # tp = [7, 4, 0], fp = [3, 0, 0], fn = [0, 3, 7], tn = [0, 3, 3]921    # P = tp + fp = [10, 4, 0]922    # dTP = [7-4, 4-0] = [3, 4]923    # dP = [10-4, 4-0] = [6, 4]924    # slope = dTP/dP = [0.5, 1]925    # intercept = (TPa+(slope*Pa) = [(4 - 0.5*4), (0 - 1*0)] = [2, 0]926    # (Pb/Pa) = (Pb/Pa) if Pb > 0 AND Pa > 0 else 1 = [10/4, 4/0] = [2.5, 1]927    # auc * TotalPos = [(0.5 * (3 + 2 * log(2.5))), (1 * (4 + 0))]928    #                = [2.416, 4]929    # auc = [2.416, 4]/(tp[1:]+fn[1:])930    expected_result = (2.416/7 + 4/7)931    self.assertAllClose(self.evaluate(result), expected_result, 1e-3)932  def test_invalid_num_thresholds(self):933    with self.assertRaisesRegexp(ValueError, '`num_thresholds` must be > 1.'):934      metrics.AUC(num_thresholds=-1)935    with self.assertRaisesRegexp(ValueError, '`num_thresholds` must be > 1.'):936      metrics.AUC(num_thresholds=1)937if __name__ == '__main__':...

variables_test.py

Source:variables_test.py

...55      self.assertEqual([], var1.get_shape())56      self.assertEqual([], var1.get_shape())57      self.assertEqual([], var1.shape)58      with self.assertRaisesOpError("Attempting to use uninitialized value"):59        self.evaluate(var0)60      with self.assertRaisesOpError("Attempting to use uninitialized value"):61        self.evaluate(var1)62      self.evaluate(variables.global_variables_initializer())63      self.assertAllClose(0.0, self.evaluate(var0))64      self.assertAllClose(1.1, self.evaluate(var1))65  @test_util.run_v1_only("b/120545219")66  def testInitializationOrder(self):67    with self.cached_session():68      rnd = variables.Variable(random_ops.random_uniform([3, 6]), name="rnd")69      self.assertEqual("rnd:0", rnd.name)70      self.assertEqual([3, 6], rnd.get_shape())71      self.assertEqual([3, 6], rnd.get_shape())72      self.assertEqual([3, 6], rnd.shape)73      dep = variables.Variable(rnd.initialized_value(), name="dep")74      self.assertEqual("dep:0", dep.name)75      self.assertEqual([3, 6], dep.get_shape())76      self.assertEqual([3, 6], dep.get_shape())77      self.assertEqual([3, 6], dep.shape)78      # Currently have to set the shape manually for Add.79      added_val = rnd.initialized_value() + dep.initialized_value() + 2.080      added_val.set_shape(rnd.get_shape())81      depdep = variables.Variable(added_val, name="depdep")82      self.assertEqual("depdep:0", depdep.name)83      self.assertEqual([3, 6], depdep.get_shape())84      self.assertEqual([3, 6], depdep.get_shape())85      self.assertEqual([3, 6], depdep.shape)86      self.evaluate(variables.global_variables_initializer())87      self.assertAllClose(self.evaluate(rnd), self.evaluate(dep))88      self.assertAllClose(89          self.evaluate(rnd) + self.evaluate(dep) + 2.0, self.evaluate(depdep))90  def testIterable(self):91    with self.assertRaisesRegexp(TypeError, "not iterable"):92      for _ in variables.Variable(0.0):93        pass94    with self.assertRaisesRegexp(TypeError, "not iterable"):95      for _ in variables.Variable([0.0, 1.0]):96        pass97  @test_util.run_deprecated_v198  def testAssignments(self):99    with self.cached_session():100      var = variables.Variable(0.0)101      plus_one = var.assign_add(1.0)102      minus_one = var.assign_sub(2.0)103      four = var.assign(4.0)104      self.evaluate(variables.global_variables_initializer())105      self.assertAllClose(0.0, self.evaluate(var))106      self.assertAllClose(1.0, self.evaluate(plus_one))107      self.assertAllClose(1.0, self.evaluate(var))108      self.assertAllClose(-1.0, self.evaluate(minus_one))109      self.assertAllClose(-1.0, self.evaluate(var))110      self.assertAllClose(4.0, self.evaluate(four))111      self.assertAllClose(4.0, self.evaluate(var))112  @test_util.run_deprecated_v1113  def testResourceAssignments(self):114    with self.session(use_gpu=True):115      var = resource_variable_ops.ResourceVariable(0.0)116      plus_one = var.assign_add(1.0)117      minus_one = var.assign_sub(2.0)118      four = var.assign(4.0)119      self.evaluate(variables.global_variables_initializer())120      self.assertAllClose(0.0, self.evaluate(var))121      self.evaluate(plus_one)122      self.assertAllClose(1.0, self.evaluate(var))123      self.evaluate(minus_one)124      self.assertAllClose(-1.0, self.evaluate(var))125      self.evaluate(four)126      self.assertAllClose(4.0, self.evaluate(var))127  def testZeroSizeStringAssign(self):128    with self.cached_session() as sess:129      array = variables.VariableV1(130          initial_value=array_ops.zeros((0,), dtype=dtypes.string),131          name="foo",132          trainable=False,133          collections=[ops.GraphKeys.LOCAL_VARIABLES])134      self.evaluate(variables.local_variables_initializer())135      old_value = array.value()136      copy_op = array.assign(old_value)137      self.assertEqual([], list(self.evaluate(copy_op)))138  def _countUpToTest(self, dtype):139    with self.cached_session():140      zero = constant_op.constant(0, dtype=dtype)141      var = variables.Variable(zero)142      count_up_to = var.count_up_to(3)143      self.evaluate(variables.global_variables_initializer())144      self.assertEqual(0, self.evaluate(var))145      self.assertEqual(0, self.evaluate(count_up_to))146      self.assertEqual(1, self.evaluate(var))147      self.assertEqual(1, self.evaluate(count_up_to))148      self.assertEqual(2, self.evaluate(var))149      self.assertEqual(2, self.evaluate(count_up_to))150      self.assertEqual(3, self.evaluate(var))151      with self.assertRaisesOpError("Reached limit of 3"):152        self.evaluate(count_up_to)153      self.assertEqual(3, self.evaluate(var))154      with self.assertRaisesOpError("Reached limit of 3"):155        self.evaluate(count_up_to)156      self.assertEqual(3, self.evaluate(var))157  @test_util.run_deprecated_v1158  def testCountUpToInt32(self):159    self._countUpToTest(dtypes.int32)160  @test_util.run_deprecated_v1161  def testCountUpToInt64(self):162    self._countUpToTest(dtypes.int64)163  @test_util.run_v1_only("b/120545219")164  def testControlDepsNone(self):165    with self.cached_session():166      c = constant_op.constant(1.0)167      with ops.control_dependencies([c]):168        # d get the control dep.169        d = constant_op.constant(2.0)170        # variables do not.171        var_x = variables.VariableV1(2.0)172      self.assertEqual([c.op], d.op.control_inputs)173      self.assertEqual([], var_x.initializer.control_inputs)174      self.assertEqual([], var_x.value().op.control_inputs)175      self.assertEqual([], var_x._ref().op.control_inputs)  # pylint: disable=protected-access176  @test_util.run_v1_only("b/120545219")177  def testControlFlow(self):178    with self.cached_session() as sess:179      v0 = variables.Variable(0, name="v0")180      var_dict = {}181      # Call get_variable in each of the cond clauses.182      def var_in_then_clause():183        v1 = variables.Variable(1, name="v1")184        var_dict["v1"] = v1185        return v1 + v0186      def var_in_else_clause():187        v2 = variables.Variable(2, name="v2")188        var_dict["v2"] = v2189        return v2 + v0190      add = control_flow_ops.cond(191          math_ops.less(v0, 10), var_in_then_clause, var_in_else_clause)192      v1 = var_dict["v1"]193      v2 = var_dict["v2"]194      # We should be able to initialize and run v1 and v2 without initializing195      # v0, even if the variable was created with a control dep on v0.196      self.evaluate(v1.initializer)197      self.assertEqual([1], self.evaluate(v1))198      self.evaluate(v2.initializer)199      self.assertEqual([2], self.evaluate(v2))200      # v0 should still be uninitialized.201      with self.assertRaisesRegexp(errors_impl.OpError, "uninitialized"):202        self.evaluate(v0)203      # We should not be able to run 'add' yet.204      with self.assertRaisesRegexp(errors_impl.OpError, "uninitialized"):205        self.evaluate(add)206      # If we initialize v0 we should be able to run 'add'.207      self.evaluate(v0.initializer)208      self.evaluate(add)209  @test_util.run_v1_only("b/120545219")210  def testControlFlowInitialization(self):211    """Expects an error if an initializer is in a control-flow scope."""212    def cond(i, _):213      return i < 10214    def body(i, _):215      zero = array_ops.zeros([], dtype=dtypes.int32)216      v = variables.Variable(initial_value=zero)217      return (i + 1, v.read_value())218    with self.assertRaisesRegexp(ValueError, "inside a control-flow"):219      control_flow_ops.while_loop(cond, body, [0, 0])220  @test_util.run_deprecated_v1221  def testUseVariableAsTensor(self):222    with self.cached_session():223      var_x = variables.Variable(2.0)224      var_y = variables.Variable(3.0)225      self.evaluate(variables.global_variables_initializer())226      self.assertAllClose(2.0, self.evaluate(var_x))227      self.assertAllClose(3.0, self.evaluate(var_y))228      self.assertAllClose(5.0, self.evaluate(math_ops.add(var_x, var_y)))229  @test_util.run_deprecated_v1230  def testZeroSizeVarSameAsConst(self):231    with self.cached_session():232      zero_size_var = variables.Variable(array_ops.zeros([0, 2]))233      zero_size_const = array_ops.ones([2, 0])234      variable_mul = math_ops.matmul(zero_size_const, zero_size_var)235      const_mul = math_ops.matmul(236          zero_size_const, zero_size_const, transpose_b=True)237      self.evaluate(variables.global_variables_initializer())238      variable_output = self.evaluate(variable_mul)239      self.assertAllClose(self.evaluate(const_mul), variable_output)240      self.assertAllClose([[0., 0.], [0., 0.]], variable_output)241  @test_util.run_deprecated_v1242  def testCachingDevice(self):243    with self.cached_session():244      var = variables.Variable(2.0)245      self.assertEqual(var.device, var.value().device)246      self.assertEqual(var.device, var.initialized_value().device)247      var_cached = variables.Variable(2.0, caching_device="/job:foo")248      self.assertFalse(var_cached.device.startswith("/job:foo"))249      self.assertTrue(var_cached.value().device.startswith("/job:foo"))250  @test_util.run_deprecated_v1251  def testCollections(self):252    with self.cached_session():253      var_x = variables.VariableV1(2.0)254      var_y = variables.VariableV1(2.0, trainable=False)255      var_z = variables.VariableV1(2.0, trainable=True)256      var_t = variables.VariableV1(257          2.0,258          trainable=True,259          collections=[260              ops.GraphKeys.TRAINABLE_VARIABLES, ops.GraphKeys.GLOBAL_VARIABLES261          ])262      self.assertEqual([var_x, var_y, var_z, var_t],263                       variables.global_variables())264      self.assertEqual([var_x, var_z, var_t], variables.trainable_variables())265  @test_util.run_deprecated_v1266  def testCollectionsWithScope(self):267    with self.cached_session():268      with ops.name_scope("scope_1"):269        var_x = variables.VariableV1(2.0)270      with ops.name_scope("scope_2"):271        var_y = variables.VariableV1(2.0)272      self.assertEqual([var_x, var_y], variables.global_variables())273      self.assertEqual([var_x], variables.global_variables("scope_1"))274      self.assertEqual([var_y], variables.global_variables("scope_2"))275      self.assertEqual([var_x, var_y], variables.trainable_variables())276      self.assertEqual([var_x], variables.trainable_variables("scope_1"))277      self.assertEqual([var_y], variables.trainable_variables("scope_2"))278  def testOperatorWrapping(self):279    for attr in functools.WRAPPER_ASSIGNMENTS:280      self.assertEqual(281          getattr(variables.Variable.__add__, attr),282          getattr(ops.Tensor.__add__, attr))283  @test_util.run_deprecated_v1284  def testOperators(self):285    with self.cached_session():286      var_f = variables.Variable([2.0])287      add = var_f + 0.0288      radd = 1.0 + var_f289      sub = var_f - 1.0290      rsub = 1.0 - var_f291      mul = var_f * 10.0292      rmul = 10.0 * var_f293      div = var_f / 10.0294      rdiv = 10.0 / var_f295      lt = var_f < 3.0296      rlt = 3.0 < var_f297      le = var_f <= 2.0298      rle = 2.0 <= var_f299      gt = var_f > 3.0300      rgt = 3.0 > var_f301      ge = var_f >= 2.0302      rge = 2.0 >= var_f303      neg = -var_f304      abs_v = abs(var_f)305      var_i = variables.Variable([20])306      mod = var_i % 7307      rmod = 103 % var_i308      var_b = variables.Variable([True, False])309      and_v = operator.and_(var_b, [True, True])310      or_v = operator.or_(var_b, [False, True])311      xor_v = operator.xor(var_b, [False, False])312      invert_v = ~var_b313      rnd = np.random.rand(4, 4).astype("f")314      var_t = variables.Variable(rnd)315      slice_v = var_t[2, 0:0]316      var_m = variables.Variable([[2.0, 3.0]])317      matmul = var_m.__matmul__([[10.0], [20.0]])318      rmatmul = var_m.__rmatmul__([[10.0], [20.0]])319      self.evaluate(variables.global_variables_initializer())320      self.assertAllClose([2.0], self.evaluate(add))321      self.assertAllClose([3.0], self.evaluate(radd))322      self.assertAllClose([1.0], self.evaluate(sub))323      self.assertAllClose([-1.0], self.evaluate(rsub))324      self.assertAllClose([20.0], self.evaluate(mul))325      self.assertAllClose([20.0], self.evaluate(rmul))326      self.assertAllClose([0.2], self.evaluate(div))327      self.assertAllClose([5.0], self.evaluate(rdiv))328      self.assertAllClose([-2.0], self.evaluate(neg))329      self.assertAllClose([2.0], self.evaluate(abs_v))330      self.assertAllClose([True], self.evaluate(lt))331      self.assertAllClose([False], self.evaluate(rlt))332      self.assertAllClose([True], self.evaluate(le))333      self.assertAllClose([True], self.evaluate(rle))334      self.assertAllClose([False], self.evaluate(gt))335      self.assertAllClose([True], self.evaluate(rgt))336      self.assertAllClose([True], self.evaluate(ge))337      self.assertAllClose([True], self.evaluate(rge))338      self.assertAllClose([6], self.evaluate(mod))339      self.assertAllClose([3], self.evaluate(rmod))340      self.assertAllClose([True, False], self.evaluate(and_v))341      self.assertAllClose([True, True], self.evaluate(or_v))342      self.assertAllClose([True, False], self.evaluate(xor_v))343      self.assertAllClose([False, True], self.evaluate(invert_v))344      self.assertAllClose(rnd[2, 0:0], self.evaluate(slice_v))345      self.assertAllClose([[80.0]], self.evaluate(matmul))346      self.assertAllClose([[20.0, 30.0], [40.0, 60.0]], self.evaluate(rmatmul))347  @test_util.run_deprecated_v1348  def testSession(self):349    with self.cached_session() as sess:350      var = variables.Variable([1, 12])351      self.evaluate(variables.global_variables_initializer())352      self.assertAllClose([1, 12], self.evaluate(var))353  @test_util.run_v1_only("b/120545219")354  def testColocation(self):355    with ops.device("/job:ps"):356      var = variables.VariableV1(0, name="v")357    with ops.device("/job:worker/task:7"):358      assign_op = var.assign(1)359    self.assertDeviceEqual("/job:ps", assign_op.device)360    self.assertEqual([b"loc:@v"], assign_op.op.colocation_groups())361  @test_util.run_v1_only("b/120545219")362  def testInitializerFunction(self):363    value = [[-42], [133.7]]364    shape = [2, 1]365    with self.cached_session():366      initializer = lambda: constant_op.constant(value)367      v1 = variables.Variable(initializer, dtype=dtypes.float32)368      self.assertEqual(shape, v1.get_shape())369      self.assertEqual(shape, v1.shape)370      self.assertAllClose(value, self.evaluate(v1.initial_value))371      with self.assertRaises(errors_impl.FailedPreconditionError):372        self.evaluate(v1)373      v2 = variables.Variable(374          math_ops.negative(v1.initialized_value()), dtype=dtypes.float32)375      self.assertEqual(v1.get_shape(), v2.get_shape())376      self.assertEqual(v1.shape, v2.shape)377      self.assertAllClose(np.negative(value), self.evaluate(v2.initial_value))378      with self.assertRaises(errors_impl.FailedPreconditionError):379        self.evaluate(v2)380      self.evaluate(variables.global_variables_initializer())381      self.assertAllClose(np.negative(value), self.evaluate(v2))382  def testConstraintArg(self):383    constraint = lambda x: x384    v = variables.Variable(385        lambda: constant_op.constant(1.),386        constraint=constraint)387    self.assertEqual(v.constraint, constraint)388    constraint = 0389    with self.assertRaises(ValueError):390      v = variables.Variable(391          lambda: constant_op.constant(1.),392          constraint=constraint)393  @test_util.run_v1_only("b/120545219")394  def testNoRefDataRace(self):395    with self.cached_session():396      a = variables.Variable([1, 2, 3], dtype=dtypes.float32)397      b = variables.Variable(a.initialized_value() + 2)398      c = variables.Variable(b.initialized_value() + 2)399      self.evaluate(variables.global_variables_initializer())400      self.assertAllEqual(self.evaluate(a), [1, 2, 3])401      self.assertAllEqual(self.evaluate(b), [3, 4, 5])402      self.assertAllEqual(self.evaluate(c), [5, 6, 7])403  @test_util.run_deprecated_v1404  def testInitializerFunctionDevicePlacement(self):405    with self.cached_session():406      initializer = lambda: constant_op.constant(42.0)407      with ops.device("/cpu:100"):408        v1 = variables.Variable(initializer, dtype=dtypes.float32, name="v1")409      expected_device = "/device:CPU:100"410      expected_group_v1 = [b"loc:@v1"]411      self.assertEqual(expected_device, v1.op.device)412      self.assertEqual(expected_group_v1, v1.op.colocation_groups())413      for i in v1.initializer.inputs:414        self.assertEqual(expected_group_v1, i.op.colocation_groups())415      v2 = variables.Variable(initializer, dtype=dtypes.float32, name="v2")416      expected_group_v2 = [b"loc:@v2"]417      self.assertEqual(expected_group_v2, v2.op.colocation_groups())418      for i in v2.initializer.inputs:419        self.assertEqual(expected_group_v2, i.op.colocation_groups())420  @test_util.run_v1_only("b/120545219")421  def testVariableDefInitializedInstances(self):422    with ops.Graph().as_default(), self.cached_session() as sess:423      v_def = variables.Variable(424          initial_value=constant_op.constant(3.0)).to_proto()425    with ops.Graph().as_default(), self.cached_session() as sess:426      # v describes a VariableDef-based variable without an initial value.427      v = variables.Variable(variable_def=v_def)428      self.assertEqual(3.0, self.evaluate(v.initialized_value()))429      # initialized_value should not rerun the initializer_op if the variable430      # has already been initialized elsewhere.431      self.evaluate(v.assign(1.0))432      self.assertEqual(1.0, self.evaluate(v.initialized_value()))433    v_def.ClearField("initial_value_name")434    with ops.Graph().as_default(), self.cached_session() as sess:435      # Restoring a legacy VariableDef proto that does not have436      # initial_value_name set should still work.437      v = variables.Variable(variable_def=v_def)438      # We should also be able to re-export the variable to a new meta graph.439      self.assertProtoEquals(v_def, v.to_proto())440      # But attempts to use initialized_value will result in errors.441      with self.assertRaises(ValueError):442        self.evaluate(v.initialized_value())443  def testTrainableInProto(self):444    with ops.Graph().as_default():445      non_trainable_variable = variables.Variable(446          trainable=False,447          initial_value=constant_op.constant(10.0))448      self.assertEqual(449          False,450          variables.Variable(variable_def=non_trainable_variable.to_proto())451          .trainable)452      trainable_variable = variables.Variable(453          trainable=True,454          initial_value=constant_op.constant(10.0))455      self.assertEqual(456          True,457          variables.Variable(variable_def=trainable_variable.to_proto())458          .trainable)459  @test_util.run_deprecated_v1460  def testLoad(self):461    with self.cached_session():462      var = variables.Variable(np.zeros((5, 5), np.float32))463      self.evaluate(variables.global_variables_initializer())464      var.load(np.ones((5, 5), np.float32))465      self.assertAllClose(np.ones((5, 5), np.float32), self.evaluate(var))466  @test_util.run_v1_only("b/120545219")467  def testRepr(self):468    var = variables.VariableV1(np.zeros((5, 5), np.float32), name="noop")469    self.assertEqual(470        "<tf.Variable 'noop:0' shape=(5, 5) dtype=float32_ref>",471        repr(var))472  def testVariableNamesPreserveNameScopesWithDefun(self):473    @function.defun474    def create_variable():475      with ops.name_scope("foo"):476        v = variables.Variable(0.0, name="bar")477      self.assertEqual(v.name, "foo/bar:0")478    with ops.get_default_graph().as_default():479      create_variable()480class IsInitializedTest(test.TestCase):481  def testNoVars(self):482    with ops.Graph().as_default(), self.cached_session() as sess:483      uninited = variables.report_uninitialized_variables()484      self.assertEqual(0, self.evaluate(uninited).size)485  def testAssertVariablesInitialized(self):486    with ops.Graph().as_default(), self.cached_session() as sess:487      v = variables.Variable([1, 2], name="v")488      w = variables.Variable([3, 4], name="w")489      _ = v, w490      uninited = variables.report_uninitialized_variables()491      self.assertAllEqual(np.array([b"v", b"w"]), self.evaluate(uninited))492      self.evaluate(variables.global_variables_initializer())493      self.assertEqual(0, self.evaluate(uninited).size)494  @test_util.run_v1_only("b/120545219")495  def testVariableList(self):496    with ops.Graph().as_default(), self.cached_session() as sess:497      v = variables.VariableV1([1, 2], name="v")498      w = variables.VariableV1([3, 4], name="w")499      uninited = variables.report_uninitialized_variables()500      self.assertAllEqual(np.array([b"v", b"w"]), self.evaluate(uninited))501      self.evaluate(w.initializer)502      self.assertAllEqual(np.array([b"v"]), self.evaluate(uninited))503      v.initializer.run()504      self.assertEqual(0, self.evaluate(uninited).size)505  def testZeroSizeVarInitialized(self):506    with ops.Graph().as_default(), self.cached_session() as sess:507      v = variables.Variable(array_ops.zeros([0, 2]), name="v")508      uninited = variables.report_uninitialized_variables()509      v.initializer.run()  # not strictly necessary510      self.assertEqual(0, self.evaluate(uninited).size)511  def testTrainingWithZeroSizeVar(self):512    with ops.Graph().as_default(), self.cached_session() as sess:513      a = variables.Variable(array_ops.zeros([0, 2]))514      b = variables.Variable(array_ops.ones([2, 2]))515      objective = math_ops.reduce_sum(b + math_ops.matmul(516          a, a, transpose_a=True))517      self.evaluate(variables.global_variables_initializer())518      do_opt = gradient_descent.GradientDescentOptimizer(0.1).minimize(519          objective)520      self.evaluate([do_opt])521      self.assertAllClose([[0.9, 0.9], [0.9, 0.9]], self.evaluate(b))522@test_util.run_v1_only("b/120545219")523class ObsoleteIsInitializedTest(test.TestCase):524  def testNoVars(self):525    with ops.Graph().as_default():526      self.assertEqual(None, variables.assert_variables_initialized())527  def testVariables(self):528    with ops.Graph().as_default(), self.cached_session() as sess:529      v = variables.VariableV1([1, 2])530      w = variables.VariableV1([3, 4])531      _ = v, w532      inited = variables.assert_variables_initialized()533      with self.assertRaisesOpError("Attempting to use uninitialized value"):534        self.evaluate(inited)535      self.evaluate(variables.global_variables_initializer())536      self.evaluate(inited)537  def testVariableList(self):538    with ops.Graph().as_default(), self.cached_session() as sess:539      v = variables.VariableV1([1, 2])540      w = variables.VariableV1([3, 4])541      inited = variables.assert_variables_initialized([v])542      with self.assertRaisesOpError("Attempting to use uninitialized value"):543        inited.op.run()544      self.evaluate(w.initializer)545      with self.assertRaisesOpError("Attempting to use uninitialized value"):546        inited.op.run()547      v.initializer.run()548      inited.op.run()549class PartitionedVariableTest(test.TestCase):550  def testPartitionedVariable(self):551    with ops.Graph().as_default():552      v0 = variables.Variable([0])553      v1 = variables.Variable([1])554      v0._set_save_slice_info(555          variables.Variable.SaveSliceInfo(v0.name, [2], [0], [1]))556      v1._set_save_slice_info(557          variables.Variable.SaveSliceInfo(v0.name, [2], [1], [1]))558      partitions = [2]559      # Pass variable_list as [v1, v0] to ensure they are properly560      # re-sorted to [v0, v1] based on their slice info offsets.561      partitioned_variable = variables.PartitionedVariable(562          name="two_vars",563          shape=[2],564          dtype=v0.dtype,565          variable_list=[v1, v0],566          partitions=partitions)567      concatenated = ops.convert_to_tensor(partitioned_variable)568      num_partitions = len(partitioned_variable)569      iterated_partitions = list(partitioned_variable)570      self.assertEqual(2, num_partitions)571      self.assertEqual([v0, v1], iterated_partitions)572      self.assertEqual([2], partitioned_variable.get_shape())573      self.assertEqual([2], partitioned_variable.shape)574      self.assertEqual([2], concatenated.get_shape())575      self.assertEqual([2], concatenated.shape)576  def testPartitionedVariableFailures(self):577    with ops.Graph().as_default():578      with self.assertRaisesRegexp(ValueError, "empty"):579        variables.PartitionedVariable(580            name="fail",581            shape=2,582            dtype=dtypes.int32,583            variable_list=[],584            partitions=[])585      with self.assertRaisesRegexp(ValueError, "must have a save_slice_info"):586        v0 = variables.Variable([0])587        partitions = [1]588        variables.PartitionedVariable(589            name="two_vars",590            shape=[1],591            dtype=v0.dtype,592            variable_list=[v0],593            partitions=partitions)594      with self.assertRaisesRegexp(ValueError, "full shapes must match"):595        v0 = variables.Variable([0])596        v1 = variables.Variable([1])597        v0._set_save_slice_info(598            variables.Variable.SaveSliceInfo(v0.name, [2], [0], [1]))599        v1._set_save_slice_info(600            variables.Variable.SaveSliceInfo(v0.name, [2], [1], [1]))601        partitions = [2]602        variables.PartitionedVariable(603            name="two_vars",604            shape=[3],605            dtype=v0.dtype,606            variable_list=[v1, v0],607            partitions=partitions)608      with self.assertRaisesRegexp(ValueError, "must be positive"):609        v0 = variables.Variable([0])610        v0._set_save_slice_info(611            variables.Variable.SaveSliceInfo(v0.name, [2], [0], [1]))612        partitions = [0]613        variables.PartitionedVariable(614            name="two_vars",615            shape=[2],616            dtype=v0.dtype,617            variable_list=[v0],618            partitions=partitions)619  def testPartitionedVariableAssignments(self):620    with ops.Graph().as_default(), self.cached_session():621      v0 = variables.Variable(initial_value=[0.0])622      v1 = variables.Variable(initial_value=[1.0])623      v2 = variables.Variable(initial_value=[20.0])624      v3 = variables.Variable(initial_value=[30.0])625      v0._set_save_slice_info(626          variables.Variable.SaveSliceInfo(v0.name, [2], [0], [1]))627      v1._set_save_slice_info(628          variables.Variable.SaveSliceInfo(v1.name, [2], [1], [1]))629      v2._set_save_slice_info(630          variables.Variable.SaveSliceInfo(v2.name, [2], [0], [1]))631      v3._set_save_slice_info(632          variables.Variable.SaveSliceInfo(v3.name, [2], [1], [1]))633      partitions = [2]634      # Pass variable_list as [v1, v0] to ensure they are properly635      # re-sorted to [v0, v1] based on their slice info offsets.636      pv_0 = variables.PartitionedVariable(637          name="two_vars",638          shape=[2],639          dtype=v0.dtype,640          variable_list=[v0, v1],641          partitions=partitions)642      pv_1 = variables.PartitionedVariable(643          name="two_vars",644          shape=[2],645          dtype=v0.dtype,646          variable_list=[v2, v3],647          partitions=partitions)648      deltas_a = constant_op.constant([1.0, 2.0])649      deltas_b = constant_op.constant([3.0, 4.0])650      ones = array_ops.ones([2])651      plus_delta = pv_0.assign_add(deltas_a)652      minus_delta = pv_0.assign_sub(deltas_b)653      assign_ones = pv_0.assign(ones)654      c_0 = constant_op.constant([2.0])655      c_1 = constant_op.constant([3.0])656      assign_list = pv_1.assign([c_0, c_1])657      assign_part_value = pv_1.assign_add(assign_ones)658      assign_part_var = pv_1.assign_sub(pv_0)659      self.evaluate(variables.global_variables_initializer())660      self.assertEqual([1.0], self.evaluate(plus_delta[0]))661      self.assertEqual([1.0], self.evaluate(v0))662      self.assertEqual([3.0], self.evaluate(plus_delta[1]))663      self.assertEqual([3.0], self.evaluate(v1))664      self.assertEqual([-2.0], self.evaluate(minus_delta[0]))665      self.assertEqual([-2.0], self.evaluate(v0))666      self.assertEqual([-1.0], self.evaluate(minus_delta[1]))667      self.assertEqual([-1.0], self.evaluate(v1))668      self.assertEqual([1.0], self.evaluate(assign_ones[0]))669      self.assertEqual([1.0], self.evaluate(v0))670      self.assertEqual([1.0], self.evaluate(assign_ones[1]))671      self.assertEqual([1.0], self.evaluate(v1))672      self.assertEqual([2.0], self.evaluate(assign_list[0]))673      self.assertEqual([2.0], self.evaluate(v2))674      self.assertEqual([3.0], self.evaluate(assign_list[1]))675      self.assertEqual([3.0], self.evaluate(v3))676      self.assertEqual([3.0], self.evaluate(assign_part_value[0]))677      self.assertEqual([3.0], self.evaluate(v2))678      self.assertEqual([4.0], self.evaluate(assign_part_value[1]))679      self.assertEqual([4.0], self.evaluate(v3))680      self.assertEqual([2.0], self.evaluate(assign_part_var[0]))681      self.assertEqual([2.0], self.evaluate(v2))682      self.assertEqual([3.0], self.evaluate(assign_part_var[1]))683      self.assertEqual([3.0], self.evaluate(v3))684class VariableContainerTest(test.TestCase):685  def testContainer(self):686    with ops.Graph().as_default():687      v0 = variables.Variable([0])688      with ops.container("l1"):689        v1 = variables.Variable([1])690        with ops.container("l2"):691          v2 = variables.Variable([2])692          special_v = gen_state_ops.variable(693              shape=[1],694              dtype=dtypes.float32,695              name="VariableInL3",696              container="l3",697              shared_name="")...

eval.py

Source:eval.py

...25        expr = Expression('x,y')26        self.assertEqual(hash(expr), hash(Expression('x,y')))27        self.assertNotEqual(hash(expr), hash(Expression('y, x')))28    def test_name_lookup(self):29        self.assertEqual('bar', Expression('foo').evaluate({'foo': 'bar'}))30        self.assertEqual(id, Expression('id').evaluate({}))31        self.assertEqual('bar', Expression('id').evaluate({'id': 'bar'}))32        self.assertEqual(None, Expression('id').evaluate({'id': None}))33    def test_builtins(self):34        expr = Expression('Markup')35        self.assertEqual(expr.evaluate({}), Markup)36    def test_str_literal(self):37        self.assertEqual('foo', Expression('"foo"').evaluate({}))38        self.assertEqual('foo', Expression('"""foo"""').evaluate({}))39        self.assertEqual('foo', Expression("'foo'").evaluate({}))40        self.assertEqual('foo', Expression("'''foo'''").evaluate({}))41        self.assertEqual('foo', Expression("u'foo'").evaluate({}))42        self.assertEqual('foo', Expression("r'foo'").evaluate({}))43    def test_str_literal_non_ascii(self):44        expr = Expression(u"u'\xfe'")45        self.assertEqual(u'Ã¾', expr.evaluate({}))46        expr = Expression("u'\xfe'")47        self.assertEqual(u'Ã¾', expr.evaluate({}))48        expr = Expression("'\xc3\xbe'")49        self.assertEqual(u'Ã¾', expr.evaluate({}))50    def test_num_literal(self):51        self.assertEqual(42, Expression("42").evaluate({}))52        self.assertEqual(42L, Expression("42L").evaluate({}))53        self.assertEqual(.42, Expression(".42").evaluate({}))54        self.assertEqual(07, Expression("07").evaluate({}))55        self.assertEqual(0xF2, Expression("0xF2").evaluate({}))56        self.assertEqual(0XF2, Expression("0XF2").evaluate({}))57    def test_dict_literal(self):58        self.assertEqual({}, Expression("{}").evaluate({}))59        self.assertEqual({'key': True},60                         Expression("{'key': value}").evaluate({'value': True}))61    def test_list_literal(self):62        self.assertEqual([], Expression("[]").evaluate({}))63        self.assertEqual([1, 2, 3], Expression("[1, 2, 3]").evaluate({}))64        self.assertEqual([True],65                         Expression("[value]").evaluate({'value': True}))66    def test_tuple_literal(self):67        self.assertEqual((), Expression("()").evaluate({}))68        self.assertEqual((1, 2, 3), Expression("(1, 2, 3)").evaluate({}))69        self.assertEqual((True,),70                         Expression("(value,)").evaluate({'value': True}))71    def test_unaryop_pos(self):72        self.assertEqual(1, Expression("+1").evaluate({}))73        self.assertEqual(1, Expression("+x").evaluate({'x': 1}))74    def test_unaryop_neg(self):75        self.assertEqual(-1, Expression("-1").evaluate({}))76        self.assertEqual(-1, Expression("-x").evaluate({'x': 1}))77    def test_unaryop_not(self):78        self.assertEqual(False, Expression("not True").evaluate({}))79        self.assertEqual(False, Expression("not x").evaluate({'x': True}))80    def test_unaryop_inv(self):81        self.assertEqual(-2, Expression("~1").evaluate({}))82        self.assertEqual(-2, Expression("~x").evaluate({'x': 1}))83    def test_binop_add(self):84        self.assertEqual(3, Expression("2 + 1").evaluate({}))85        self.assertEqual(3, Expression("x + y").evaluate({'x': 2, 'y': 1}))86    def test_binop_sub(self):87        self.assertEqual(1, Expression("2 - 1").evaluate({}))88        self.assertEqual(1, Expression("x - y").evaluate({'x': 1, 'y': 1}))89    def test_binop_sub(self):90        self.assertEqual(1, Expression("2 - 1").evaluate({}))91        self.assertEqual(1, Expression("x - y").evaluate({'x': 2, 'y': 1}))92    def test_binop_mul(self):93        self.assertEqual(4, Expression("2 * 2").evaluate({}))94        self.assertEqual(4, Expression("x * y").evaluate({'x': 2, 'y': 2}))95    def test_binop_pow(self):96        self.assertEqual(4, Expression("2 ** 2").evaluate({}))97        self.assertEqual(4, Expression("x ** y").evaluate({'x': 2, 'y': 2}))98    def test_binop_div(self):99        self.assertEqual(2, Expression("4 / 2").evaluate({}))100        self.assertEqual(2, Expression("x / y").evaluate({'x': 4, 'y': 2}))101    def test_binop_floordiv(self):102        self.assertEqual(1, Expression("3 // 2").evaluate({}))103        self.assertEqual(1, Expression("x // y").evaluate({'x': 3, 'y': 2}))104    def test_binop_mod(self):105        self.assertEqual(1, Expression("3 % 2").evaluate({}))106        self.assertEqual(1, Expression("x % y").evaluate({'x': 3, 'y': 2}))107    def test_binop_and(self):108        self.assertEqual(0, Expression("1 & 0").evaluate({}))109        self.assertEqual(0, Expression("x & y").evaluate({'x': 1, 'y': 0}))110    def test_binop_or(self):111        self.assertEqual(1, Expression("1 | 0").evaluate({}))112        self.assertEqual(1, Expression("x | y").evaluate({'x': 1, 'y': 0}))113    def test_binop_xor(self):114        self.assertEqual(1, Expression("1 ^ 0").evaluate({}))115        self.assertEqual(1, Expression("x ^ y").evaluate({'x': 1, 'y': 0}))116    def test_binop_contains(self):117        self.assertEqual(True, Expression("1 in (1, 2, 3)").evaluate({}))118        self.assertEqual(True, Expression("x in y").evaluate({'x': 1,119                                                              'y': (1, 2, 3)}))120    def test_binop_not_contains(self):121        self.assertEqual(True, Expression("4 not in (1, 2, 3)").evaluate({}))122        self.assertEqual(True, Expression("x not in y").evaluate({'x': 4,123                                                                  'y': (1, 2, 3)}))124    def test_binop_is(self):125        self.assertEqual(True, Expression("1 is 1").evaluate({}))126        self.assertEqual(True, Expression("x is y").evaluate({'x': 1, 'y': 1}))127        self.assertEqual(False, Expression("1 is 2").evaluate({}))128        self.assertEqual(False, Expression("x is y").evaluate({'x': 1, 'y': 2}))129    def test_binop_is_not(self):130        self.assertEqual(True, Expression("1 is not 2").evaluate({}))131        self.assertEqual(True, Expression("x is not y").evaluate({'x': 1,132                                                                  'y': 2}))133        self.assertEqual(False, Expression("1 is not 1").evaluate({}))134        self.assertEqual(False, Expression("x is not y").evaluate({'x': 1,135                                                                   'y': 1}))136    def test_boolop_and(self):137        self.assertEqual(False, Expression("True and False").evaluate({}))138        self.assertEqual(False, Expression("x and y").evaluate({'x': True,139                                                                'y': False}))140    def test_boolop_or(self):141        self.assertEqual(True, Expression("True or False").evaluate({}))142        self.assertEqual(True, Expression("x or y").evaluate({'x': True,143                                                              'y': False}))144    def test_compare_eq(self):145        self.assertEqual(True, Expression("1 == 1").evaluate({}))146        self.assertEqual(True, Expression("x == y").evaluate({'x': 1, 'y': 1}))147    def test_compare_ne(self):148        self.assertEqual(False, Expression("1 != 1").evaluate({}))149        self.assertEqual(False, Expression("x != y").evaluate({'x': 1, 'y': 1}))150        self.assertEqual(False, Expression("1 <> 1").evaluate({}))151        self.assertEqual(False, Expression("x <> y").evaluate({'x': 1, 'y': 1}))152    def test_compare_lt(self):153        self.assertEqual(True, Expression("1 < 2").evaluate({}))154        self.assertEqual(True, Expression("x < y").evaluate({'x': 1, 'y': 2}))155    def test_compare_le(self):156        self.assertEqual(True, Expression("1 <= 1").evaluate({}))157        self.assertEqual(True, Expression("x <= y").evaluate({'x': 1, 'y': 1}))158    def test_compare_gt(self):159        self.assertEqual(True, Expression("2 > 1").evaluate({}))160        self.assertEqual(True, Expression("x > y").evaluate({'x': 2, 'y': 1}))161    def test_compare_ge(self):162        self.assertEqual(True, Expression("1 >= 1").evaluate({}))163        self.assertEqual(True, Expression("x >= y").evaluate({'x': 1, 'y': 1}))164    def test_compare_multi(self):165        self.assertEqual(True, Expression("1 != 3 == 3").evaluate({}))166        self.assertEqual(True, Expression("x != y == y").evaluate({'x': 1,167                                                                   'y': 3}))168    def test_call_function(self):169        self.assertEqual(42, Expression("foo()").evaluate({'foo': lambda: 42}))170        data = {'foo': 'bar'}171        self.assertEqual('BAR', Expression("foo.upper()").evaluate(data))172        data = {'foo': {'bar': range(42)}}173        self.assertEqual(42, Expression("len(foo.bar)").evaluate(data))174    def test_call_keywords(self):175        self.assertEqual(42, Expression("foo(x=bar)").evaluate({'foo': lambda x: x,176                                                                'bar': 42}))177    def test_call_star_args(self):178        self.assertEqual(42, Expression("foo(*bar)").evaluate({'foo': lambda x: x,179                                                               'bar': [42]}))180    def test_call_dstar_args(self):181        def foo(x):182            return x183        expr = Expression("foo(**bar)")184        self.assertEqual(42, expr.evaluate({'foo': foo, 'bar': {"x": 42}}))185    def test_lambda(self):186        # Define a custom `sorted` function cause the builtin isn't available187        # on Python 2.3188        def sorted(items, compfunc):189            items.sort(compfunc)190            return items191        data = {'items': [{'name': 'b', 'value': 0}, {'name': 'a', 'value': 1}],192                'sorted': sorted}193        expr = Expression("sorted(items, lambda a, b: cmp(a.name, b.name))")194        self.assertEqual([{'name': 'a', 'value': 1}, {'name': 'b', 'value': 0}],195                         expr.evaluate(data))196    def test_list_comprehension(self):197        expr = Expression("[n for n in numbers if n < 2]")198        self.assertEqual([0, 1], expr.evaluate({'numbers': range(5)}))199        expr = Expression("[(i, n + 1) for i, n in enumerate(numbers)]")200        self.assertEqual([(0, 1), (1, 2), (2, 3), (3, 4), (4, 5)],201                         expr.evaluate({'numbers': range(5)}))202        expr = Expression("[offset + n for n in numbers]")203        self.assertEqual([2, 3, 4, 5, 6],204                         expr.evaluate({'numbers': range(5), 'offset': 2}))205    def test_list_comprehension_with_getattr(self):206        items = [{'name': 'a', 'value': 1}, {'name': 'b', 'value': 2}]207        expr = Expression("[i.name for i in items if i.value > 1]")208        self.assertEqual(['b'], expr.evaluate({'items': items}))209    def test_list_comprehension_with_getitem(self):210        items = [{'name': 'a', 'value': 1}, {'name': 'b', 'value': 2}]211        expr = Expression("[i['name'] for i in items if i['value'] > 1]")212        self.assertEqual(['b'], expr.evaluate({'items': items}))213    if sys.version_info >= (2, 4):214        # Generator expressions only supported in Python 2.4 and up215        def test_generator_expression(self):216            expr = Expression("list(n for n in numbers if n < 2)")217            self.assertEqual([0, 1], expr.evaluate({'numbers': range(5)}))218            expr = Expression("list((i, n + 1) for i, n in enumerate(numbers))")219            self.assertEqual([(0, 1), (1, 2), (2, 3), (3, 4), (4, 5)],220                             expr.evaluate({'numbers': range(5)}))221            expr = Expression("list(offset + n for n in numbers)")222            self.assertEqual([2, 3, 4, 5, 6],223                             expr.evaluate({'numbers': range(5), 'offset': 2}))224        def test_generator_expression_with_getattr(self):225            items = [{'name': 'a', 'value': 1}, {'name': 'b', 'value': 2}]226            expr = Expression("list(i.name for i in items if i.value > 1)")227            self.assertEqual(['b'], expr.evaluate({'items': items}))228        def test_generator_expression_with_getitem(self):229            items = [{'name': 'a', 'value': 1}, {'name': 'b', 'value': 2}]230            expr = Expression("list(i['name'] for i in items if i['value'] > 1)")231            self.assertEqual(['b'], expr.evaluate({'items': items}))232    if sys.version_info >= (2, 5):233        def test_conditional_expression(self):234            expr = Expression("'T' if foo else 'F'")235            self.assertEqual('T', expr.evaluate({'foo': True}))236            self.assertEqual('F', expr.evaluate({'foo': False}))237    def test_slice(self):238        expr = Expression("numbers[0:2]")239        self.assertEqual([0, 1], expr.evaluate({'numbers': range(5)}))240    def test_slice_with_vars(self):241        expr = Expression("numbers[start:end]")242        self.assertEqual([0, 1], expr.evaluate({'numbers': range(5), 'start': 0,243                                                'end': 2}))244    def test_slice_copy(self):245        expr = Expression("numbers[:]")246        self.assertEqual([0, 1, 2, 3, 4], expr.evaluate({'numbers': range(5)}))247    def test_slice_stride(self):248        expr = Expression("numbers[::stride]")249        self.assertEqual([0, 2, 4], expr.evaluate({'numbers': range(5),250                                                   'stride': 2}))251    def test_slice_negative_start(self):252        expr = Expression("numbers[-1:]")253        self.assertEqual([4], expr.evaluate({'numbers': range(5)}))254    def test_slice_negative_end(self):255        expr = Expression("numbers[:-1]")256        self.assertEqual([0, 1, 2, 3], expr.evaluate({'numbers': range(5)}))257    def test_access_undefined(self):258        expr = Expression("nothing", filename='index.html', lineno=50)259        retval = expr.evaluate({})260        assert isinstance(retval, Undefined)261        self.assertEqual('nothing', retval._name)262        assert retval._owner is UNDEFINED263    def test_getattr_undefined(self):264        class Something(object):265            def __repr__(self):266                return '<Something>'267        something = Something()268        expr = Expression('something.nil', filename='index.html', lineno=50)269        retval = expr.evaluate({'something': something})270        assert isinstance(retval, Undefined)271        self.assertEqual('nil', retval._name)272        assert retval._owner is something273    def test_getattr_exception(self):274        class Something(object):275            def prop(self):276                raise NotImplementedError277            prop = property(prop)278        self.assertRaises(NotImplementedError,279                          Expression('s.prop').evaluate, {'s': Something()})280    def test_getitem_undefined_string(self):281        class Something(object):282            def __repr__(self):283                return '<Something>'284        something = Something()285        expr = Expression('something["nil"]', filename='index.html', lineno=50)286        retval = expr.evaluate({'something': something})287        assert isinstance(retval, Undefined)288        self.assertEqual('nil', retval._name)289        assert retval._owner is something290    def test_getitem_exception(self):291        class Something(object):292            def __getitem__(self, key):293                raise NotImplementedError294        self.assertRaises(NotImplementedError,295                          Expression('s["foo"]').evaluate, {'s': Something()})296    def test_error_access_undefined(self):297        expr = Expression("nothing", filename='index.html', lineno=50,298                          lookup='strict')299        try:300            expr.evaluate({})301            self.fail('Expected UndefinedError')302        except UndefinedError, e:303            exc_type, exc_value, exc_traceback = sys.exc_info()304            frame = exc_traceback.tb_next305            frames = []306            while frame.tb_next:307                frame = frame.tb_next308                frames.append(frame)309            self.assertEqual('"nothing" not defined', str(e))310            self.assertEqual("<Expression 'nothing'>",311                             frames[-3].tb_frame.f_code.co_name)312            self.assertEqual('index.html',313                             frames[-3].tb_frame.f_code.co_filename)314            self.assertEqual(50, frames[-3].tb_lineno)315    def test_error_getattr_undefined(self):316        class Something(object):317            def __repr__(self):318                return '<Something>'319        expr = Expression('something.nil', filename='index.html', lineno=50,320                          lookup='strict')321        try:322            expr.evaluate({'something': Something()})323            self.fail('Expected UndefinedError')324        except UndefinedError, e:325            self.assertEqual('<Something> has no member named "nil"', str(e))326            exc_type, exc_value, exc_traceback = sys.exc_info()327            search_string = "<Expression 'something.nil'>"328            frame = exc_traceback.tb_next329            while frame.tb_next:330                frame = frame.tb_next331                code = frame.tb_frame.f_code332                if code.co_name == search_string:333                    break334            else:335                self.fail("never found the frame I was looking for")336            self.assertEqual('index.html', code.co_filename)337            self.assertEqual(50, frame.tb_lineno)338    def test_error_getitem_undefined_string(self):339        class Something(object):340            def __repr__(self):341                return '<Something>'342        expr = Expression('something["nil"]', filename='index.html', lineno=50,343                          lookup='strict')344        try:345            expr.evaluate({'something': Something()})346            self.fail('Expected UndefinedError')347        except UndefinedError, e:348            self.assertEqual('<Something> has no member named "nil"', str(e))349            exc_type, exc_value, exc_traceback = sys.exc_info()350            search_string = '''<Expression 'something["nil"]'>'''351            frame = exc_traceback.tb_next352            while frame.tb_next:353                frame = frame.tb_next354                code = frame.tb_frame.f_code355                if code.co_name == search_string:356                    break357            else:358                self.fail("never found the frame I was looking for")359            self.assertEqual('index.html', code.co_filename)...

unittests.py

Source:unittests.py

...7  return get_coref_infos('tests/%s' % key, 'tests/%s' % response,8      False, False, True)9def test_A1():10  doc = read('TC-A.key', 'TC-A-1.response')11  assert evaluate(doc, muc) == (1, 1, 1)12  assert evaluate(doc, b_cubed) == (1, 1, 1)13  assert evaluate(doc, ceafe) == (1, 1, 1)14  assert evaluate(doc, ceafm) == (1, 1, 1)15  assert evaluate(doc, lea) == (1, 1, 1)16  assert evaluate(doc, [blancc,blancn]) == (1,1,1)17def test_A2():18  doc = read('TC-A.key', 'TC-A-2.response')19  assert evaluate(doc, muc) == approx([1 / 3, 1 / 1, 1 / 2])20  assert evaluate(doc, b_cubed) == approx([(7 / 3) / 6, 3 / 3, 14 / 25])21  assert evaluate(doc, ceafe) == approx([0.6, 0.9, 0.72])22  assert evaluate(doc, ceafm) == approx([0.5, 1, 0.66667], abs=TOL)23  assert evaluate(doc, lea) == approx([(1 + 3 * (1 / 3)) / 6, 1, 0.5])24  assert evaluate(doc, [blancc,blancn]) == approx([0.21591, 1, 0.35385], abs=TOL)25def test_A3():26  doc = read('TC-A.key', 'TC-A-3.response')27  assert evaluate(doc, muc) == approx([3 / 3, 3 / 5, 0.75])28  assert evaluate(doc,29      b_cubed) == approx([6 / 6, (4 + 7 / 12) / 9, 110 / 163])30  assert evaluate(doc, ceafe) == approx([0.88571, 0.66429, 0.75918], abs=TOL)31  assert evaluate(doc, lea) == approx([32      1, (1 + 3 * (1 / 3) + 4 * (3 / 6)) / 9,33      2 * (1 + 3 * (1 / 3) + 434        * (3 / 6)) / 9 / (1 + (1 + 3 * (1 / 3) + 4 * (3 / 6)) / 9)35  ])36  assert evaluate(doc, ceafm) == approx([1, 0.66667, 0.8], abs=TOL)37  assert evaluate(doc, [blancc, blancn]) == approx([1, 0.42593, 0.59717], abs=TOL)38def test_A4():39  doc = read('TC-A.key', 'TC-A-4.response')40  assert evaluate(doc, muc) == approx([1 / 3, 1 / 3, 1 / 3])41  assert evaluate(doc, b_cubed) == approx([42      (3 + 1 / 3) / 6, (1 + 4 / 3 + 1 / 2) / 7,43      2 * (5 / 9) * (17 / 42) / ((5 / 9) + (17 / 42))44  ])45  assert evaluate(doc, ceafe) == approx([0.73333, 0.55, 0.62857], abs=TOL)46  assert evaluate(doc, lea) == approx([(1 + 2 + 0) / 6,47      (1 + 3 * (1 / 3) + 2 * 0 + 0) / 7,48      2 * 0.5 * 2 / 7 / (0.5 + 2 / 7)])49  assert evaluate(doc, ceafm) == approx([0.66667, 0.57143, 0.61538], abs=TOL)50  assert evaluate(doc, [blancc, blancn]) == approx([0.35227, 0.27206, 0.30357], abs=TOL)51def test_A5():52  doc = read('TC-A.key', 'TC-A-5.response')53  assert evaluate(doc, muc) == approx([1 / 3, 1 / 4, 2 / 7])54  assert evaluate(doc, b_cubed) == approx([55      (3 + 1 / 3) / 6, 2.5 / 8,56      2 * (5 / 9) * (5 / 16) / ((5 / 9) + (5 / 16))57  ])58  assert evaluate(doc, ceafe) == approx([0.68889, 0.51667, 0.59048], abs=TOL)59  assert evaluate(doc,60      lea) == approx([(1 + 2 + 3 * 0) / 6,61      (1 + 4 * (1 / 6) + 2 * 0 + 1 * 0) / 8,62      2 * 0.5 * (5 / 24) / (0.5 + (5 / 24))])63  assert evaluate(doc, ceafm) == approx([0.66667, 0.5, 0.57143], abs=TOL)64  assert evaluate(doc, [blancc, blancn]) == approx([0.35227, 0.19048, 0.24716], abs=TOL)65def test_A6():66  doc = read('TC-A.key', 'TC-A-6.response')67  assert evaluate(doc, muc) == approx([1 / 3, 1 / 4, 2 / 7])68  assert evaluate(doc, b_cubed) == approx([69      (10 / 3) / 6, (1 + 4 / 3 + 1 / 2) / 8,70      2 * (5 / 9) * (17 / 48) / ((5 / 9) + (17 / 48))71  ])72  assert evaluate(doc, ceafe) == approx([0.73333, 0.55, 0.62857], abs=TOL)73  assert evaluate(doc, lea) == approx([(1 + 2 + 3 * 0) / 6,74      (1 + 3 / 3 + 2 * 0 + 2 * 0) / 8,75      2 * 0.5 * 1 / 4 / (0.5 + 1 / 4)])76  assert evaluate(doc, ceafm) == approx([0.66667, 0.5, 0.57143], abs=TOL)77  assert evaluate(doc, [blancc, blancn]) == approx([0.35227, 0.20870, 0.25817], abs=TOL)78def test_A7():79  doc = read('TC-A.key', 'TC-A-7.response')80  assert evaluate(doc, muc) == approx([1 / 3, 1 / 3, 1 / 3])81  assert evaluate(doc, b_cubed) == approx([82      (10 / 3) / 6, (1 + 4 / 3 + 1 / 2) / 7,83      2 * (5 / 9) * (17 / 42) / ((5 / 9) + (17 / 42))84  ])85  assert evaluate(doc, ceafe) == approx([0.73333, 0.55, 0.62857], abs=TOL)86  assert evaluate(doc, lea) == approx([(1 + 2 + 3 * 0) / 6,87      (1 + 3 / 3 + 2 * 0 + 1 * 0) / 7,88      2 * 0.5 * 2 / 7 / (0.5 + 2 / 7)])89  assert evaluate(doc, ceafm) == approx([0.66667, 0.57143, 0.61538], abs=TOL)90  assert evaluate(doc, [blancc, blancn]) == approx([0.35227, 0.27206, 0.30357], abs=TOL)91def test_A10():92  doc = read('TC-A.key', 'TC-A-10.response')93  assert evaluate(doc, muc) == approx([0, 0, 0])94  assert evaluate(doc, b_cubed) == approx([3 / 6, 6 / 6, 2 / 3])95  assert evaluate(doc, lea) == approx(96      [1 / 6, 1 / 6, 2 * 1 / 6 * 1 / 6 / (1 / 6 + 1 / 6)])97  assert evaluate(doc, [blancc, blancn]) == approx([0.5, 0.36667, 0.42308], abs=TOL)98def test_A11():99  doc = read('TC-A.key', 'TC-A-11.response')100  assert evaluate(doc, muc) == approx([3 / 3, 3 / 5, 6 / 8])101  assert evaluate(doc, b_cubed) == approx(102      [6 / 6, (1 / 6 + 2 * 2 / 6 + 3 * 3 / 6) / 6, 14 / 25])103  assert evaluate(doc,104      lea) == approx([(0 + 2 + 3) / 6, 4 / 15,105      2 * 5 / 6 * 4 / 15 / (5 / 6 + 4 / 15)])106  assert evaluate(doc, [blancc, blancn]) == approx([0.5, 0.13333, 0.21053], abs=TOL)107def test_A12():108  doc = read('TC-A.key', 'TC-A-12.response')109  assert evaluate(doc, muc) == approx([0, 0, 0])110  assert evaluate(doc, b_cubed) == approx([111      (1 + 1 / 2 + 2 / 3) / 6, 4 / 7,112      2 * (13 / 36) * (4 / 7) / ((13 / 36) + (4 / 7))113  ])114  assert evaluate(doc, lea) == approx(115      [1 / 6, 1 / 7, 2 * 1 / 6 * 1 / 7 / (1 / 6 + 1 / 7)])116  assert evaluate(doc, [blancc, blancn]) == approx([0.22727, 0.11905, 0.15625], abs=TOL)117def test_A13():118  doc = read('TC-A.key', 'TC-A-13.response')119  assert evaluate(doc, muc) == approx([1 / 3, 1 / 6, 2 / 9])120  assert evaluate(doc, b_cubed) == approx([121      (1 + 1 / 2 + 2 * 2 / 3) / 6, (1 / 7 + 1 / 7 + 2 * 2 / 7) / 7,122      2 * (17 / 36) * (6 / 49) / ((17 / 36) + (6 / 49))123  ])124  assert evaluate(doc,125      lea) == approx([(1 * 0 + 2 * 0 + 3 / 3) / 6, 1 / 21,126      2 * 1 / 6 * 1 / 21 / (1 / 6 + 1 / 21)])127  assert evaluate(doc, [blancc, blancn]) == approx([0.125, 0.02381, 0.04], abs=TOL)128def test_B1():129  doc = read('TC-B.key', 'TC-B-1.response')130  assert evaluate(doc, lea) == approx([(2 * 0 + 3 / 3) / 5, (3 * 0 + 2) / 5,131      2 * 1 / 5 * 2 / 5 / (1 / 5 + 2 / 5)])132  assert evaluate(doc, [blancc, blancn]) == approx([1/2 * (1/4 + 1/3), 1/2 * (1/4 + 1/3), 1/2 * (1/4 + 1/3)])133def test_C1():134  doc = read('TC-C.key', 'TC-C-1.response')135  assert evaluate(doc, lea) == approx([(2 * 0 + 3 / 3 + 2) / 7,136      (3 * 0 + 2 + 2) / 7,137      2 * 3 / 7 * 4 / 7 / (3 / 7 + 4 / 7)])138  assert evaluate(doc, [blancc, blancn]) == approx([1/2 * (2/5 + 10/16), 1/2 * (2/5 + 10/16), 1/2 * (2/5 + 10/16)])139def test_D1():140  doc = read('TC-D.key', 'TC-D-1.response')141  assert evaluate(doc, muc) == approx(142      [9 / 9, 9 / 10, 2 * (9 / 9) * (9 / 10) / (9 / 9 + 9 / 10)])143  assert evaluate(doc, b_cubed) == approx([144      12 / 12, 16 / 21, 2 * (12 / 12) * (16 / 21) / (12 / 12 + 16 / 21)145  ])146  assert evaluate(doc, lea) == approx([147      (5 + 2 + 5) / 12, (5 + 7 * (11 / 21)) / 12,148      2 * 1 * (5 + 77 / 21) / 12 / (1 + ((5 + 77 / 21) / 12))149  ])150def test_E1():151  doc = read('TC-E.key', 'TC-E-1.response')152  assert evaluate(doc, muc) == approx(153      [9 / 9, 9 / 10, 2 * (9 / 9) * (9 / 10) / (9 / 9 + 9 / 10)])154  assert evaluate(doc, b_cubed) == approx(155      [1, 7 / 12, 2 * 1 * (7 / 12) / (1 + 7 / 12)])156  assert evaluate(doc, lea) == approx([(5 + 2 + 5) / 12,157      (10 * (20 / 45) + 2) / 12,158      2 * 1 * ((10 * (20 / 45) + 2) / 12)159        / (1 + ((10 * (20 / 45) + 2) / 12))])160def test_F1():161  doc = read('TC-F.key', 'TC-F-1.response')162  assert evaluate(doc, muc) == approx(163      [2 / 3, 2 / 2, 2 * (2 / 3) * (2 / 2) / (2 / 3 + 2 / 2)])164  assert evaluate(doc, lea) == approx(165      [4 * (2 / 6) / 4, (2 + 2) / 4, 2 * 2 / 6 * 1 / (1 + 2 / 6)])166def test_G1():167  doc = read('TC-G.key', 'TC-G-1.response')168  assert evaluate(doc, muc) == approx(169      [2 / 2, 2 / 3, 2 * (2 / 2) * (2 / 3) / (2 / 2 + 2 / 3)])170  assert evaluate(doc, lea) == approx(171      [1, (4 * 2 / 6) / 4, 2 * 1 * 2 / 6 / (1 + 2 / 6)])172def test_H1():173  doc = read('TC-H.key', 'TC-H-1.response')174  assert evaluate(doc, muc) == approx([1, 1, 1])175  assert evaluate(doc, lea) == approx([1, 1, 1])176def test_I1():177  doc = read('TC-I.key', 'TC-I-1.response')178  assert evaluate(doc, muc) == approx(179      [2 / 3, 2 / 2, 2 * (2 / 3) * (2 / 2) / (2 / 3 + 2 / 2)])180  assert evaluate(doc, lea) == approx(181      [4 * (2 / 6) / 4, (2 + 2) / 4, 2 * 2 / 6 * 1 / (2 / 6 + 1)])182def test_J1():183  doc = read('TC-J.key', 'TC-J-1.response')184  assert evaluate(doc, muc) == approx(185      [1 / 2, 1 / 1, 2 * (1 / 2) * (1 / 1) / (1 / 2 + 1 / 1)])186  assert evaluate(doc, lea) == approx([(3 * 1 / 3) / 3, 1,187      2 * 1 / 3 / (1 + 1 / 3)])188def test_K1():189  doc = read('TC-K.key', 'TC-K-1.response')190  assert evaluate(doc, muc) == approx([3 / 6, 3 / 6, 3 / 6])191  assert evaluate(doc,192      lea) == approx([(7 * (1 + 1 + 1) / 21) / 7,193      (3 / 3 + 3 / 3 + 3 / 3) / 9,194      2 * 3 / 21 * 3 / 9 / (3 / 21 + 3 / 9)])195def test_L1():196  doc = read('TC-L.key', 'TC-L-1.response')197  assert evaluate(doc, muc) == approx(198      [2 / 5, 2 / 4, 2 * (2 / 5) * (2 / 4) / (2 / 5 + 2 / 4)])199  assert evaluate(doc, lea) == approx([200      (3 * 1 / 3 + 4 * 1 / 6) / 7, (2 + 2 * 0 + 3 / 3) / 7,201      2 * (1 + 2 / 3) / 7 * 3 / 7 / (3 / 7 + (1 + 2 / 3) / 7)202  ])203def test_M1():204  doc = read('TC-M.key', 'TC-M-1.response')205  assert evaluate(doc, muc) == approx([1, 1, 1])206  assert evaluate(doc, b_cubed) == approx([1, 1, 1])207  assert evaluate(doc, ceafe) == approx([1, 1, 1])208  assert evaluate(doc, lea) == approx([1, 1, 1])209  assert evaluate(doc, ceafm) == approx([1, 1, 1])210  assert evaluate(doc, [blancc, blancn]) == approx([1, 1, 1])211def test_M2():212  doc = read('TC-M.key', 'TC-M-2.response')213  assert evaluate(doc, muc) == approx([0, 0, 0])214  assert evaluate(doc, lea) == approx([0, 0, 0])215  assert evaluate(doc, [blancc, blancn]) == approx([0, 0, 0])216def test_M3():217  doc = read('TC-M.key', 'TC-M-3.response')218  assert evaluate(doc, lea) == approx([219      6 * (4 / 15) / 6, (2 + 3 + 0) / 6,220      2 * 4 / 15 * 5 / 6 / (4 / 15 + 5 / 6)221  ])222  #the original is wrong as the |N_r| != 0223  #assert evaluate(doc, [blancc, blancn]) == approx([0.26667, 1, 0.42105], abs=TOL)224  assert evaluate(doc, [blancc, blancn]) == approx([0.26667/2, 1/2, 0.42105/2], abs=TOL)225def test_M4():226  doc = read('TC-M.key', 'TC-M-4.response')227  assert evaluate(doc, lea) == approx([228      6 * (3 / 15) / 6, 6 * (3 / 15) / 6,229      2 * 3 / 15 * 3 / 15 / (3 / 15 + 3 / 15)230  ])231  assert evaluate(doc, [blancc, blancn]) == approx([0.2, 0.2, 0.2])232def test_M5():233  doc = read('TC-M.key', 'TC-M-5.response')234  assert evaluate(doc, muc) == approx([0, 0, 0])235  assert evaluate(doc, lea) == approx([0, 0, 0])236  assert evaluate(doc, [blancc, blancn]) == approx([0, 0, 0])237def test_M6():238  doc = read('TC-M.key', 'TC-M-6.response')239  assert evaluate(doc, lea) == approx([240      6 * (1 / 15) / 6, (2 + 3 * 0 + 1 * 0) / 6,241      2 * 1 / 15 * 2 / 6 / (1 / 15 + 2 / 6)242  ])243  # the original is wrong as the |N_r| != 0244  # assert evaluate(doc, [blancc, blancn]) == approx([0.06667, 0.25, 0.10526], abs=TOL)245  assert evaluate(doc, [blancc, blancn]) == approx([0.06667/2, 0.25/2, 0.10526/2], abs=TOL)246def test_N1():247  doc = read('TC-N.key', 'TC-N-1.response')248  assert evaluate(doc, muc) == approx([0, 0, 0])249  assert evaluate(doc, lea) == approx([1, 1, 1])250  assert evaluate(doc, [blancc, blancn]) == approx([1, 1, 1])251def test_N2():252  doc = read('TC-N.key', 'TC-N-2.response')253  assert evaluate(doc, muc) == approx([0, 0, 0])254  assert evaluate(doc, lea) == approx([0, 0, 0])255  assert evaluate(doc, [blancc, blancn]) == approx([0, 0, 0])256def test_N3():257  doc = read('TC-N.key', 'TC-N-3.response')258  assert evaluate(doc, lea) == approx([1 / 6, 1 / 6, 1 / 6])259  # the original is wrong as the |C_r| != 0260  # assert evaluate(doc, [blancc, blancn]) == approx([0.73333, 1, 0.84615], abs=TOL)261  assert evaluate(doc, [blancc, blancn]) == approx([0.73333/2, 1/2, 0.84615/2], abs=TOL)262def test_N4():263  doc = read('TC-N.key', 'TC-N-4.response')264  assert evaluate(doc, muc) == approx([0, 0, 0])265  assert evaluate(doc, lea) == approx([3 / 6, 3 / 6, 3 / 6])266  assert evaluate(doc, [blancc, blancn]) == approx([0.2, 0.2, 0.2])267def test_N5():268  doc = read('TC-N.key', 'TC-N-5.response')269  assert evaluate(doc, lea) == approx([0, 0, 0])270  assert evaluate(doc, [blancc, blancn]) == approx([0, 0, 0])271def test_N6():272  doc = read('TC-N.key', 'TC-N-6.response')273  assert evaluate(doc, lea) == approx([0, 0, 0])274  # the original is wrong as the |C_r| != 0275  # assert evaluate(doc, [blancc, blancn]) == approx([0.13333, 0.18182, 0.15385], abs=TOL)...

clean_string.py

Source:clean_string.py

1from __future__ import unicode_literals2from __future__ import division3import re4import math5import random6import simple_math7def parse_string(input):8    """Checks for special case of to fraction and otherwise sends9    the input to be cleaned in this module and processed with Pyparsing.10    """11    to_fraction = False12    if '&gt;Frac' in input:13        to_fraction = True14    input = clean_string(input)15    simple_math.BNF().parseString(input)16    output = clean_output(to_fraction)17    return output18def clean_output(to_fraction):19    """Checks for special cases of returning a fraction or needing20    to return scientific notation and returns utf-8 encoded string21    in any case.  Returns a float when a float and an integer when22    an integer.23    """24    output = simple_math.evaluateStack()25    if type(output) == float:26        if float.is_integer(output):27            output = int(output)28    if to_fraction:29        output = simple_math.decimal_to_fraction(output)30    else:31        output = simple_math.sci_notation(output)32    output = unicode(output).encode('utf-8')33    return output34def clean_string(input):35    """36    Replaces a number of known inputs with values37    that can later be evaluated from within the stack.38    adds a multiplier to any input that doesn't have one39    outside off a parens.40    """41    input = checkParens(input)42    if re.search(r'[+\-*/=]{2,}', input):43        raise SyntaxError44    input = parse_function(input)45    for operator in operators:46        if operator in input:47            index = input.index(operator)48            try:49                input[index+1]50            except IndexError:51                raise SyntaxError("ERR: SYNTAX")52    for unic, byte in [(u'\u02c9', '-'),53                       (u'\u00B2', '^2'),54                       (u'3\u221a', 'cube_root'),55                       (u'x\u221a', 'x_root'),56                       (u'\u221a', 'sqrt'),57                       (u'\u00B3', '^3'),58                       (u'sin^-1', 'asin'),59                       (u'cos^-1', 'acos'),60                       (u'tan^-1', 'atan'),61                       (u'\u03c0', 'PI'),62                       (u'rand', random.random())]:63        input = input.replace(unic, str(byte))64    for reg_ex in [r'(\d+)(X)', r'(X)(\d+)', r'(\d+)(\()', r'(\))(\d+)']:65        input = re.sub(reg_ex, r'\1 * \2', input)66    input = x_root(input)67    input = fix_decimals(input)68    input = factorial(input)69    return input70def factorial(input):71    """Accepts either one argument or any number of arguments72    within a set of parens and returns the factorial of each.73    If a number of arguments within parens are passed then they74    are returned in parens.75    """76    if "!" in input:77        index = input.index("!")78        if index > 0 and input[index-1] in operators:79            raise SyntaxError("ERR: SYNTAX")80        left = index - 181        right = index82        while left > 0:83            if input[left] in operators:84                left += 185                break86            else:87                left -= 188        to_evaluate = input[left:right]89        if "(" in to_evaluate:90            output = evaluate_parens_factorial(to_evaluate)91        else:92            try:93                output = str(math.factorial(int(to_evaluate)))94            except ValueError:95                raise SyntaxError("ERR: DOMAIN")96        input = input.replace(input[left:index+1], output)97    return input98def evaluate_parens_factorial(to_evaluate):99    """helper function to evaluate the special case of each100    item within a set of parens.101    """102    to_evaluate = to_evaluate.strip("(")103    to_evaluate = to_evaluate.strip(")")104    to_evaluate = to_evaluate.split(",")105    output = ""106    for x in to_evaluate:107        try:108            output += str(math.factorial(int(x))) + ","109        except ValueError:110            raise SyntaxError("ERR: DOMAIN")111    output = output[:-1]112    output = "({})".format(output)113    return output114def checkParens(input):115    """Pyparsing will generally catch errors in parens except116    in the case of too many close parens.  This function closes that117    gap and also allows for future functionality surrounding118    accepting input that's meant to be converted into a list.119    """120    input = input.replace("{", "[")121    input = input.replace("}", "]")122    count = 0123    for x in input:124        if x == "(":125            count += 1126        elif x == ")":127            count -= 1128        if count == -1:129            raise SyntaxError130    if count != 0:131        raise SyntaxError132    return input133def fix_decimals(input):134    """Pyparsing will not accept floats that do not135    have a placeholder in the ones spot so we add one.136    """137    if input[0] == '.':138        input = '0' + input139    for item in [('+.', '+0.'),140                 ('*.', '*0.'),141                 ('/.', '/0.'),142                 ('-.', '-0.'),143                 ('(.', '(0.'),144                 (').', ')0.')]:145        input = input.replace(item[0], item[1])146    return input147operators = ['*', '+', '-', '/', '!']148def parse_function(input):149    """If the function that's passed is in the functions dictionary this150    will pull the function from the string, evaluate it and return151    a string where the original function is replaced with a string that152    represents the appropriate numeric output.153    """154    for function in functions:155        if function in input:156            index = input.index(function)157            if index > 0 and input[index - 1] not in operators:158                raise SyntaxError(b"ERR: SYNTAX")159            beginning = index + len(function)160            end = beginning + 1161            while end < (len(input) - 1):162                if input[end] == ")":163                    break164                else:165                    end += 1166            to_evaluate = input[beginning:end]167            evaluated = functions[function](to_evaluate)168            input = input.replace(input[index:end+1], evaluated)169    return input170def min_val(to_evaluate):171    """Accepts any number of inputs and returns the one number that172    has the lowest value.173    """174    if '[' in to_evaluate or ']' in to_evaluate:175        # come back to fix this to accept lists if time176        raise SyntaxError(b'ERR: SYNTAX')177    to_evaluate = to_evaluate.split(',')178    return str(min([float(x) for x in to_evaluate]))179def max_val(to_evaluate):180    """Accepts any number of inputs and returns the one number that181    has the highest value.182    """183    if '[' in to_evaluate or ']' in to_evaluate:184        # come back to fix this to accept lists if time185        raise SyntaxError(b'ERR: SYNTAX')186    to_evaluate = to_evaluate.split(',')187    return str(max([float(x) for x in to_evaluate]))188def ipart(to_evaluate):189    """Takes in one float as argument and returns just190    the integer part.191    """192    if "," in to_evaluate:193        raise SyntaxError(b"ERR: ARGUMENT")194    try:195        return str(float(to_evaluate) // 1)196    except ValueError:197        raise SyntaxError(b"ERR: SYNTAX")198def fpart(to_evaluate):199    """Takes in one float as argument and returns just the fractional200    part.201    """202    if "," in to_evaluate:203        raise SyntaxError(b"ERR: ARGUMENT")204    try:205        return str(float(to_evaluate) % 1)206    except ValueError:207        raise SyntaxError(b"ERR: SYNTAX")208def gcd(to_evaluate):209    """Takes in two integers and returns the greatest common210    denominator.211    """212    x, y = two_integers(to_evaluate)213    while(y):214        x, y = y, x % y215    return str(x)216def lcm(to_evaluate):217    """Takes in two integers and returns the lowest common multiplier.218    """219    x, y = two_integers(to_evaluate)220    lcm = (x*y)//int(gcd(to_evaluate))221    return str(lcm)222def randint(to_evaluate):223    """Takes in two integers and returns a random integer in between224    or equal to the integers passed.225    """226    x, y = two_integers(to_evaluate)227    rand = random.randint(x, y)228    return str(rand)229functions = {230    "iPart(": ipart,231    "fPart(": fpart,232    "min(": min_val,233    "max(": max_val,234    "lcm(": lcm,235    "gcd(": gcd,236    "randInt(": randint,237}238def two_integers(to_evaluate):239    """takes in string to evaluate and throws appropriate errors240    if any value passed is not an integer and if more than two values241    are passed.242    """243    to_evaluate = to_evaluate.split(',')244    try:245        x, y = to_evaluate246        try:247            x = float(x)248            y = float(y)249            if x.is_integer() and y.is_integer():250                x = int(x)251                y = int(y)252            else:253                raise ValueError254        except ValueError:255            raise SyntaxError(b"ERR: DOMAIN")256    except ValueError:257        raise SyntaxError(b"ERR: ARGUMENT")258    return x, y259def x_root(input):260    """Takes in the entire user input, parses out the arguments261    immediately before and after x_root and returns the result of that262    evaluation.  For instance 3x_root8 will evaluate as 8**(1/3).263    """264    if 'x_root' in input:265        index = input.index('x_root')266        try:267            if (input[index-1] in operators268               or input[index+6] in operators269               or index == 0):270                raise SyntaxError(b"ERR: SYNTAX")271        except IndexError:272            raise SyntaxError("ERR: SYNTAX")273        left = index-1274        right = index + 6275        while left > 0:276            if input[left] in operators:277                left += 1278                break279            else:280                left -= 1281        while right < (len(input) - 1):282            if input[right] in operators:283                break284            else:285                right += 1286        if left == 0:287            replacement = (math.pow(float(input[index+6:right+1]),288                           (1/float(input[left:index]))))289            input = input.replace(input[left:right+1], str(replacement))290        else:291            replacement = (math.pow(float(input[index+6:right]),292                           (1/float(input[left:index]))))293            input = input.replace(input[left:right], str(replacement))...

TestVSCode_evaluate.py

Source:TestVSCode_evaluate.py

...10class TestVSCode_variables(lldbvscode_testcase.VSCodeTestCaseBase):11    mydir = TestBase.compute_mydir(__file__)12    def assertEvaluate(self, expression, regex):13        self.assertRegexpMatches(14            self.vscode.request_evaluate(expression, context=self.context)['body']['result'],15            regex)16    def assertEvaluateFailure(self, expression):17        self.assertNotIn('result',18            self.vscode.request_evaluate(expression, context=self.context)['body'])19    def isExpressionParsedExpected(self):20        return self.context != "hover"21    def run_test_evaluate_expressions(self, context=None):22        """23            Tests the evaluate expression request at different breakpoints24        """25        self.context = context26        program = self.getBuildArtifact("a.out")27        self.build_and_launch(program)28        source = "main.cpp"29        self.set_source_breakpoints(30            source,31            [32                line_number(source, "// breakpoint 1"),...

plural_unittests.py

Source:plural_unittests.py

...9      True, True, False,False,False,False)10  return doc_coref_infos11def test_PA1():12  doc = read('TC-PA.key', 'TC-PA-1.sys')13  assert evaluate(doc, muc) == (1, 1, 1)14  assert evaluate(doc, b_cubed) == (1, 1, 1)15  assert evaluate(doc, ceafe) == (1, 1, 1)16  assert evaluate(doc, ceafm) == (1, 1, 1)17  assert evaluate(doc, lea) == (1, 1, 1)18  assert evaluate(doc, [blancc,blancn]) == (1,1,1)19def test_PA2():20  doc = read('TC-PA.key', 'TC-PA-2.sys')21  assert evaluate(doc, muc) == (1, 1, 1)22  assert evaluate(doc, b_cubed) == (1, 1, 1)23  assert evaluate(doc, ceafe) == (1, 1, 1)24  assert evaluate(doc, ceafm) == (1, 1, 1)25  assert evaluate(doc, lea) == (1, 1, 1)26  assert evaluate(doc, [blancc,blancn]) == (1,1,1)27def test_PA3():28  doc = read('TC-PA.key', 'TC-PA-3.sys')29  assert evaluate(doc, muc) == (1, 1, 1)30  assert evaluate(doc, b_cubed) == (1, 1, 1)31  assert evaluate(doc, ceafe) == (1, 1, 1)32  assert evaluate(doc, ceafm) == (1, 1, 1)33  assert evaluate(doc, lea) == (1, 1, 1)34  assert evaluate(doc, [blancc,blancn]) == (1,1,1)35def test_PA4():36  doc = read('TC-PA.key', 'TC-PA-4.sys')37  assert evaluate(doc, muc) == approx([3/4, 1, 6/7])38  assert evaluate(doc, b_cubed) == approx([19/24, 1, 38/43])39  assert evaluate(doc, ceafe) == approx([3.8/4, 3.8/4, 3.8/4],abs=TOL)40  assert evaluate(doc, ceafm) == approx([7/8, 1, 0.93333],abs=TOL)41  assert evaluate(doc, lea) == approx([6/8, 1, 6/7])42  #assert evaluate(doc, [blancc,blancn]) == (1,1,1)43def test_PA5():44  doc = read('TC-PA.key', 'TC-PA-5.sys')45  assert evaluate(doc, muc) == approx([1, 11/12, 22/23])46  assert evaluate(doc, b_cubed) == approx([1, 0.95167, 0.97523],abs=TOL)47  assert evaluate(doc, ceafe) == approx([0.98333, 0.98333, 0.98333],abs=TOL)48  assert evaluate(doc, ceafm) == approx([0.98611, 0.98611, 0.98611],abs=TOL)49  assert evaluate(doc, lea) == approx([1, 7.6/8, 38/39])50  #assert evaluate(doc, [blancc,blancn]) == (1,1,1)51def test_PA6():52  doc = read('TC-PA.key', 'TC-PA-6.sys')53  assert evaluate(doc, muc) == approx([7/8, 7/8, 7/8])54  assert evaluate(doc, b_cubed) == approx([0.88542, 0.92130, 0.903],abs=TOL)55  assert evaluate(doc, ceafe) == approx([0.95833, 0.95833, 0.95833], abs=TOL)56  assert evaluate(doc, ceafm) == approx([0.94643, 0.94643, 0.94643], abs=TOL)57  assert evaluate(doc, lea) == approx([7/8, 11/12, 0.89535], abs=TOL)58  #assert evaluate(doc, [blancc,blancn]) == (1,1,1)59def test_PA7():60  doc = read('TC-PA.key', 'TC-PA-7.sys')61  assert evaluate(doc, muc) == approx([5/8, 5/6, 5/7])62  assert evaluate(doc, b_cubed) == approx([0.72461, 1, 0.84032],abs=TOL)63  assert evaluate(doc, ceafe) == approx([0.90278, 0.90278, 0.90278],abs=TOL)64  assert evaluate(doc, ceafm) == approx([0.85714, 0.97959, 0.91429],abs=TOL)65  assert evaluate(doc, lea) == approx([5/8, 16/21, 0.68670], abs=TOL)66  #assert evaluate(doc, [blancc,blancn]) == (1,1,1)67def test_PA8():68  doc = read('TC-PA.key', 'TC-PA-8.sys')69  assert evaluate(doc, muc) == (1, 1, 1)70  assert evaluate(doc, b_cubed) == (1, 1, 1)71  assert evaluate(doc, ceafe) == (1, 1, 1)72  assert evaluate(doc, ceafm) == (1, 1, 1)73  assert evaluate(doc, lea) == (1, 1, 1)74  assert evaluate(doc, [blancc, blancn]) == (1, 1, 1)75def test_PA9():76  doc = read('TC-PA.key', 'TC-PA-9.sys')77  assert evaluate(doc, muc) == approx([1, 11/15, 11/13])78  assert evaluate(doc, b_cubed) == approx([1, 0.75463, 0.86016],abs=TOL)79  assert evaluate(doc, ceafe) == approx([0.69167, 0.92222, 0.79048],abs=TOL)80  assert evaluate(doc, ceafm) == approx([0.86111, 0.86111, 0.86111],abs=TOL)81  assert evaluate(doc, lea) == approx([7/8, 5.2/8, 0.74590], abs=TOL)82  #assert evaluate(doc, [blancc,blancn]) == (1,1,1)83def test_PA10():84  doc = read('TC-PA.key', 'TC-PA-10.sys')85  assert evaluate(doc, muc) == approx([3/4, 3/4, 3/4])86  assert evaluate(doc, b_cubed) == approx([0.83333, 0.83333, 0.83333],abs=TOL)87  assert evaluate(doc, ceafe) == approx([3.8/4, 3.8/5, 0.84444],abs=TOL)88  assert evaluate(doc, ceafm) == approx([7/8, 7/9, 0.82353],abs=TOL)89  assert evaluate(doc, lea) == approx([6/8, 7/9, 0.76364], abs=TOL)90  #assert evaluate(doc, [blancc,blancn]) == (1,1,1)91def test_PA11():92  doc = read('TC-PA.key', 'TC-PA-11.sys')93  assert evaluate(doc, muc) == approx([7/8, 1, 14/15])94  assert evaluate(doc, b_cubed) == approx([0.88542, 1, 0.93923],abs=TOL)95  assert evaluate(doc, ceafe) == approx([0.97222, 0.97222, 0.97222],abs=TOL)96  assert evaluate(doc, ceafm) == approx([0.95833, 0.95833, 0.95833],abs=TOL)97  assert evaluate(doc, lea) == approx([7/8, 1, 14/15])98  #assert evaluate(doc, [blancc,blancn]) == (1,1,1)99def test_PB1():100  doc = read('TC-PB.key', 'TC-PB-1.sys')101  assert evaluate(doc, muc) == (1, 1, 1)102  assert evaluate(doc, b_cubed) == (1, 1, 1)103  assert evaluate(doc, ceafe) == (1, 1, 1)104  assert evaluate(doc, ceafm) == (1, 1, 1)105  assert evaluate(doc, lea) == (1, 1, 1)106  assert evaluate(doc, [blancc,blancn]) == (1,1,1)107def test_PB2():108  doc = read('TC-PB.key', 'TC-PB-2.sys')109  assert evaluate(doc, muc) == (1, 1, 1)110  assert evaluate(doc, b_cubed) == (1, 1, 1)111  assert evaluate(doc, ceafe) == (1, 1, 1)112  assert evaluate(doc, ceafm) == (1, 1, 1)113  assert evaluate(doc, lea) == (1, 1, 1)114  assert evaluate(doc, [blancc,blancn]) == (1,1,1)115def test_PB3():116  doc = read('TC-PB.key', 'TC-PB-3.sys')117  assert evaluate(doc, muc) == approx([1, 14/15, 28/29])118  assert evaluate(doc, b_cubed) == approx([1, 0.928, 0.96266],abs=TOL)119  assert evaluate(doc, ceafe) == approx([4.9/5, 4.9/5, 4.9/5])120  assert evaluate(doc, ceafm) == approx([0.975, 0.975, 0.975])121  assert evaluate(doc, lea) == approx([1, 0.92, 0.95833],abs=TOL)122  # assert evaluate(doc, [blancc,blancn]) == (1,1,1)123def test_PB4():124  doc = read('TC-PB.key', 'TC-PB-4.sys')125  assert evaluate(doc, muc) == approx([0.8, 0.8, 0.8])126  assert evaluate(doc, b_cubed) == approx([0.85, 7.5/9, 0.84158],abs=TOL)127  assert evaluate(doc, ceafe) == approx([0.77143, 0.96429, 0.85714],abs=TOL)128  assert evaluate(doc, ceafm) == approx([0.8, 8/9, 0.84211],abs=TOL)129  assert evaluate(doc, lea) == approx([0.8, 7/9, 0.78873],abs=TOL)...

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  const result = await page.evaluate(async () => {7  });8  await browser.close();9})();10const playwright = require('playwright');11(async () => {12  const browser = await playwright.chromium.launch();13  const context = await browser.newContext();14  const page = await context.newPage();15  const handle = await page.evaluateHandle(async () => {16  });17  await browser.close();18})();19const playwright = require('playwright');20(async () => {21  const browser = await playwright.chromium.launch();22  const context = await browser.newContext();23  const page = await context.newPage();24  await page.exposeBinding('bindingName', async () => {25  });26  await browser.close();27})();28const playwright = require('playwright');29(async () => {30  const browser = await playwright.chromium.launch();31  const context = await browser.newContext();32  const page = await context.newPage();33  await page.exposeFunction('functionName', async () => {34  });35  await browser.close();36})();37const playwright = require('playwright');38(async () => {39  const browser = await playwright.chromium.launch();40  const context = await browser.newContext();41  const page = await context.newPage();42  await page.exposeFunction('functionName', async () => {43  });44  await browser.close();45})();46const playwright = require('playwright');47(async () => {48  const browser = await playwright.chromium.launch();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch({ headless: false });4  const page = await browser.newPage();5  await page.evaluate(() => {6    const input = document.querySelector('input[name="q"]');7    input.value = 'Hello World';8    input.focus();9    input.dispatchEvent(new KeyboardEvent('keydown', { key: 'Enter' }));10  });11  await browser.close();12})();13const { chromium } = require('playwright');14(async () => {15  const browser = await chromium.launch({ headless: false });16  const page = await browser.newPage();17  await page.evaluate(() => {18    const input = document.querySelector('input[name="q"]');19    input.value = 'Hello World';20    input.focus();21    input.dispatchEvent(new KeyboardEvent('keydown', { key: 'Enter' }));22  });23  await browser.close();24})();25const { chromium } = require('playwright');26(async () => {27  const browser = await chromium.launch({ headless: false });28  const page = await browser.newPage();29  await page.evaluate(() => {30    const input = document.querySelector('input[name="q"]');31    input.value = 'Hello World';32    input.focus();33    input.dispatchEvent(new KeyboardEvent('keydown', { key: 'Enter' }));34  });35  await browser.close();36})();37const { chromium } = require('playwright');38(async () => {39  const browser = await chromium.launch({ headless: false });40  const page = await browser.newPage();41  await page.evaluate(() => {42    const input = document.querySelector('input[name="q"]');43    input.value = 'Hello World';44    input.focus();45    input.dispatchEvent(new KeyboardEvent('keydown', { key: 'Enter' }));46  });47  await browser.close();48})();49const { chromium } = require('playwright');50(async () => {

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const result = await page.evaluate(() => {6    const h1 = document.querySelector('h1');7    return h1.textContent;8  });9  console.log(result);10  await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14  const browser = await chromium.launch();15  const page = await browser.newPage();16  const result = await page.evaluate(() => {17    const h1 = document.querySelector('h1');18    return h1.textContent;19  });20  console.log(result);21  await browser.close();22})();23const { chromium } = require('playwright');24(async () => {25  const browser = await chromium.launch();26  const page = await browser.newPage();27  const result = await page.evaluate(() => {28    const h1 = document.querySelector('h1');29    return h1.textContent;30  });31  console.log(result);32  await browser.close();33})();34const { chromium } = require('playwright');35(async () => {36  const browser = await chromium.launch();37  const page = await browser.newPage();38  const result = await page.evaluate(() => {39    const h1 = document.querySelector('h1');40    return h1.textContent;41  });42  console.log(result);43  await browser.close();44})();45const { chromium } = require('playwright');46(async () => {47  const browser = await chromium.launch();48  const page = await browser.newPage();49  const result = await page.evaluate(() => {50    const h1 = document.querySelector('h1');51    return h1.textContent;52  });53  console.log(result);54  await browser.close();55})();

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const title = await page.evaluate(() => document.title);6  console.log(title);7  await browser.close();8})();

Using AI Code Generation

1const {chromium} = require('playwright-chromium');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const title = await page.evaluate(() => document.title);6  console.log(title);7  await browser.close();8})();9const {chromium} = require('playwright-chromium');10(async () => {11  const browser = await chromium.launch();12  const page = await browser.newPage();13  const title = await page.evaluateHandle(() => document.title);14  console.log(await title.jsonValue());15  await browser.close();16})();17const {chromium} = require('playwright-chromium');18(async () => {19  const browser = await chromium.launch();20  const page = await browser.newPage();21  await page.evaluateOnNewDocument(() => {22    window.foo = 'bar';23  });24  console.log(await page.evaluate(() => window.foo));25  await browser.close();26})();27const {chromium} = require('playwright-chromium');28(async () => {29  const browser = await chromium.launch();30  const page = await browser.newPage();31  await page.exposeFunction('add', (a, b) => a + b);32  await page.evaluate(async () => {33  });34  await browser.close();35})();36const {chromium} = require('playwright-chromium');37(async () => {38  const browser = await chromium.launch();39  const page = await browser.newPage();40  await page.exposeBinding('add', (source, a, b) => {41    return {42    };43  });44  await page.evaluate(async () => {

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const result = await page.evaluate(() => {6    return {7    };8  });9  console.log(result);10  await browser.close();11})();12const { chromium } = require('playwright');13(async () => {14  const browser = await chromium.launch();15  const page = await browser.newPage();16  const windowHandle = await page.evaluateHandle(() => window);17  const result = await page.evaluate(window => {18    return {19    };20  }, windowHandle);21  console.log(result);22  await browser.close();23})();

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  const bodyHTML = await page.evaluate(() => document.body.innerHTML);6  console.log(bodyHTML);7  await browser.close();8})();

Using AI Code Generation

1const { chromium } = require('playwright');2const { evaluate } = require('playwright/lib/internal/evaluator');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  const title = await evaluate(page, () => document.title);7  console.log(title);8  await browser.close();9})();10const { chromium } = require('playwright');11const { evaluateHandle } = require('playwright/lib/internal/evaluator');12(async () => {13  const browser = await chromium.launch();14  const page = await browser.newPage();15  const title = await evaluateHandle(page, () => document.title);16  console.log(title);17  await browser.close();18})();19const { chromium } = require('playwright');20const { evaluateOnNewDocument } = require('playwright/lib/internal/evaluator');21(async () => {22  const browser = await chromium.launch();23  const page = await browser.newPage();24  await evaluateOnNewDocument(page, () => {25    console.log('Hello World!');26  });27  await browser.close();28})();29const { chromium } = require('playwright');30const { exposeBinding } = require('playwright/lib/internal/evaluator');31(async () => {32  const browser = await chromium.launch();33  const page = await browser.newPage();34  await exposeBinding(page, 'myBinding', (source, ...args) => {35    return 'Hello World!';36  });37  await browser.close();38})();39const { chromium } = require('playwright');40const { exposeFunction } = require('playwright/lib/internal/evaluator');41(async () => {42  const browser = await chromium.launch();43  const page = await browser.newPage();44  await exposeFunction(page, 'myFunction', () => {45    return 'Hello World!';46  });

Using AI Code Generation

1const { evaluate } = require('playwright/lib/utils/evaluators');2const { context } = require('playwright/lib/server/chromium/crBrowser');3const { Page } = require('playwright/lib/server/chromium/crPage');4const { evaluateHandle } = require('playwright/lib/utils/evaluators');5const { context } = require('playwright/lib/server/chromium/crBrowser');6const { Page } = require('playwright/lib/server/chromium/crPage');7const { evaluateOnNewDocument } = require('playwright/lib/utils/evaluators');8const { context } = require('playwright/lib/server/chromium/crBrowser');9const { Page } = require('playwright/lib/server/chromium/crPage');10const { exposeBinding } = require('playwright/lib/utils/evaluators');11const { context } = require('playwright/lib/server/chromium/crBrowser');12const { Page } = require('playwright/lib/server/chromium/crPage');13const { exposeFunction } = require('playwright/lib/utils/evaluators');14const { context } = require('playwright/lib/server/chromium/crBrowser');15const { Page } = require('playwright/lib/server/chromium/crPage');16const { exposeFunctionInUtilityContext } = require('playwright/lib/utils/evaluators');17const { context } = require('playwright/lib/server/chromium/crBrowser');18const { Page } = require('playwright/lib/server/chromium/crPage');19const { waitForFunctionInPage } = require('playwright/lib/utils/evaluators');20const { context } = require('playwright/lib/server/chromium/crBrowser');21const { Page } = require('playwright/lib/server/chromium/crPage');22const { waitForFunctionInUtilityContext } = require('playwright/lib/utils/evaluators');23const { context } = require('playwright/lib/server/chromium

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.