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How to use populate_bundle method in hypothesis

Best Python code snippet using hypothesis

test_stateful.py

Source:test_stateful.py

...261    @invariant()262    def bundle_length(self):263        assert len(self.bundle("b")) == self.expected_bundle_length264    @rule(target=b, items=lists(elements=integers(), max_size=10))265    def populate_bundle(self, items):266        self.expected_bundle_length += len(items)267        return multiple(*items)268    @rule(target=b)269    def do_not_populate(self):270        return multiple()271TestMachineUsingMultiple = MachineUsingMultiple.TestCase272def test_multiple_variables_printed():273    class ProducesMultiple(RuleBasedStateMachine):274        b = Bundle("b")275        @initialize(target=b)276        def populate_bundle(self):277            return multiple(1, 2)278        @rule()279        def fail_fast(self):280            assert False281    with capture_out() as o:282        # The state machine must raise an exception for the283        # falsifying example to be printed.284        with raises(AssertionError):285            run_state_machine_as_test(ProducesMultiple)286    # This is tightly coupled to the output format of the step printing.287    # The first line is "Falsifying Example:..." the second is creating288    # the state machine, the third is calling the "initialize" method.289    assignment_line = o.getvalue().split("\n")[2]290    # 'populate_bundle()' returns 2 values, so should be291    # expanded to 2 variables.292    assert assignment_line == "v1, v2 = state.populate_bundle()"293    # Make sure MultipleResult is iterable so the printed code is valid.294    # See https://github.com/HypothesisWorks/hypothesis/issues/2311295    state = ProducesMultiple()296    v1, v2 = state.populate_bundle()297    with raises(AssertionError):298        state.fail_fast()299def test_no_variables_printed():300    class ProducesNoVariables(RuleBasedStateMachine):301        b = Bundle("b")302        @initialize(target=b)303        def populate_bundle(self):304            return multiple()305        @rule()306        def fail_fast(self):307            assert False308    with capture_out() as o:309        # The state machine must raise an exception for the310        # falsifying example to be printed.311        with raises(AssertionError):312            run_state_machine_as_test(ProducesNoVariables)313    # This is tightly coupled to the output format of the step printing.314    # The first line is "Falsifying Example:..." the second is creating315    # the state machine, the third is calling the "initialize" method.316    assignment_line = o.getvalue().split("\n")[2]317    # 'populate_bundle()' returns 0 values, so there should be no318    # variable assignment.319    assert assignment_line == "state.populate_bundle()"320def test_consumes_typecheck():321    with pytest.raises(TypeError):322        consumes(integers())323def test_ratchetting_raises_flaky():324    with raises(Flaky):325        FlakyRatchettingMachine.TestCase().runTest()326def test_empty_machine_is_invalid():327    class EmptyMachine(RuleBasedStateMachine):328        pass329    with raises(InvalidDefinition):330        EmptyMachine.TestCase().runTest()331def test_machine_with_no_terminals_is_invalid():332    class NonTerminalMachine(RuleBasedStateMachine):333        @rule(value=Bundle("hi"))334        def bye(self, hi):335            pass336    with raises(InvalidDefinition):337        NonTerminalMachine.TestCase().runTest()338class DynamicMachine(RuleBasedStateMachine):339    @rule(value=Bundle("hi"))340    def test_stuff(x):341        pass342DynamicMachine.define_rule(targets=(), function=lambda self: 1, arguments={})343class IntAdder(RuleBasedStateMachine):344    pass345IntAdder.define_rule(346    targets=("ints",), function=lambda self, x: x, arguments={"x": integers()}347)348IntAdder.define_rule(349    targets=("ints",),350    function=lambda self, x, y: x,351    arguments={"x": integers(), "y": Bundle("ints")},352)353TestDynamicMachine = DynamicMachine.TestCase354TestIntAdder = IntAdder.TestCase355TestPrecondition = PreconditionMachine.TestCase356for test_case in (TestDynamicMachine, TestIntAdder, TestPrecondition):357    test_case.settings = Settings(test_case.settings, max_examples=10)358def test_picks_up_settings_at_first_use_of_testcase():359    assert TestDynamicMachine.settings.max_examples == 10360def test_new_rules_are_picked_up_before_and_after_rules_call():361    class Foo(RuleBasedStateMachine):362        pass363    Foo.define_rule(targets=(), function=lambda self: 1, arguments={})364    assert len(Foo.rules()) == 1365    Foo.define_rule(targets=(), function=lambda self: 2, arguments={})366    assert len(Foo.rules()) == 2367def test_minimizes_errors_in_teardown():368    counter = [0]369    class Foo(RuleBasedStateMachine):370        @initialize()371        def init(self):372            counter[0] = 0373        @rule()374        def increment(self):375            counter[0] += 1376        def teardown(self):377            assert not counter[0]378    with raises(AssertionError):379        run_state_machine_as_test(Foo)380    assert counter[0] == 1381class RequiresInit(RuleBasedStateMachine):382    def __init__(self, threshold):383        super().__init__()384        self.threshold = threshold385    @rule(value=integers())386    def action(self, value):387        if value > self.threshold:388            raise ValueError("%d is too high" % (value,))389def test_can_use_factory_for_tests():390    with raises(ValueError):391        run_state_machine_as_test(392            lambda: RequiresInit(42), settings=Settings(max_examples=100)393        )394class FailsEventually(RuleBasedStateMachine):395    def __init__(self):396        super().__init__()397        self.counter = 0398    @rule()399    def increment(self):400        self.counter += 1401        assert self.counter < 10402FailsEventually.TestCase.settings = Settings(stateful_step_count=5)403def test_can_explicitly_pass_settings():404    run_state_machine_as_test(FailsEventually)405    try:406        FailsEventually.TestCase.settings = Settings(407            FailsEventually.TestCase.settings, stateful_step_count=15408        )409        run_state_machine_as_test(410            FailsEventually, settings=Settings(stateful_step_count=2)411        )412    finally:413        FailsEventually.TestCase.settings = Settings(414            FailsEventually.TestCase.settings, stateful_step_count=5415        )416def test_settings_argument_is_validated():417    with pytest.raises(InvalidArgument):418        run_state_machine_as_test(FailsEventually, settings=object())419def test_runner_that_checks_factory_produced_a_machine():420    with pytest.raises(InvalidArgument):421        run_state_machine_as_test(object)422def test_settings_attribute_is_validated():423    real_settings = FailsEventually.TestCase.settings424    try:425        FailsEventually.TestCase.settings = object()426        with pytest.raises(InvalidArgument):427            run_state_machine_as_test(FailsEventually)428    finally:429        FailsEventually.TestCase.settings = real_settings430def test_saves_failing_example_in_database():431    db = ExampleDatabase(":memory:")432    with raises(AssertionError):433        run_state_machine_as_test(434            DepthMachine, settings=Settings(database=db, max_examples=100)435        )436    assert any(list(db.data.values()))437def test_can_run_with_no_db():438    with raises(AssertionError):439        run_state_machine_as_test(DepthMachine, settings=Settings(database=None))440def test_stateful_double_rule_is_forbidden(recwarn):441    with pytest.raises(InvalidDefinition):442        class DoubleRuleMachine(RuleBasedStateMachine):443            @rule(num=just(1))444            @rule(num=just(2))445            def whatevs(self, num):446                pass447def test_can_explicitly_call_functions_when_precondition_not_satisfied():448    class BadPrecondition(RuleBasedStateMachine):449        def __init__(self):450            super().__init__()451        @precondition(lambda self: False)452        @rule()453        def test_blah(self):454            raise ValueError()455        @rule()456        def test_foo(self):457            self.test_blah()458    with pytest.raises(ValueError):459        run_state_machine_as_test(BadPrecondition)460def test_invariant():461    """If an invariant raise an exception, the exception is propagated."""462    class Invariant(RuleBasedStateMachine):463        def __init__(self):464            super().__init__()465        @invariant()466        def test_blah(self):467            raise ValueError()468        @rule()469        def do_stuff(self):470            pass471    with pytest.raises(ValueError):472        run_state_machine_as_test(Invariant)473def test_no_double_invariant():474    """The invariant decorator can't be applied multiple times to a single475    function."""476    with raises(InvalidDefinition):477        class Invariant(RuleBasedStateMachine):478            def __init__(self):479                super().__init__()480            @invariant()481            @invariant()482            def test_blah(self):483                pass484            @rule()485            def do_stuff(self):486                pass487def test_invariant_precondition():488    """If an invariant precodition isn't met, the invariant isn't run.489    The precondition decorator can be applied in any order.490    """491    class Invariant(RuleBasedStateMachine):492        def __init__(self):493            super().__init__()494        @invariant()495        @precondition(lambda _: False)496        def an_invariant(self):497            raise ValueError()498        @precondition(lambda _: False)499        @invariant()500        def another_invariant(self):501            raise ValueError()502        @rule()503        def do_stuff(self):504            pass505    run_state_machine_as_test(Invariant)506def test_invalid_rule_argument():507    """Rule kwargs that are not a Strategy are expected to raise an InvalidArgument error."""508    with pytest.raises(InvalidArgument):509        class InvalidRuleMachine(RuleBasedStateMachine):510            @rule(strategy=object())511            def do_stuff(self):512                pass513def test_invalid_initialize_argument():514    """Initialize kwargs that are not a Strategy are expected to raise an InvalidArgument error."""515    with pytest.raises(InvalidArgument):516        class InvalidInitialize(RuleBasedStateMachine):517            @initialize(strategy=object())518            def initialize(self):519                pass520def test_multiple_invariants():521    """If multiple invariants are present, they all get run."""522    class Invariant(RuleBasedStateMachine):523        def __init__(self):524            super().__init__()525            self.first_invariant_ran = False526        @invariant()527        def invariant_1(self):528            self.first_invariant_ran = True529        @precondition(lambda self: self.first_invariant_ran)530        @invariant()531        def invariant_2(self):532            raise ValueError()533        @rule()534        def do_stuff(self):535            pass536    with pytest.raises(ValueError):537        run_state_machine_as_test(Invariant)538def test_explicit_invariant_call_with_precondition():539    """Invariants can be called explicitly even if their precondition is not540    satisfied."""541    class BadPrecondition(RuleBasedStateMachine):542        def __init__(self):543            super().__init__()544        @precondition(lambda self: False)545        @invariant()546        def test_blah(self):547            raise ValueError()548        @rule()549        def test_foo(self):550            self.test_blah()551    with pytest.raises(ValueError):552        run_state_machine_as_test(BadPrecondition)553def test_invariant_checks_initial_state():554    """Invariants are checked before any rules run."""555    class BadPrecondition(RuleBasedStateMachine):556        def __init__(self):557            super().__init__()558            self.num = 0559        @invariant()560        def test_blah(self):561            if self.num == 0:562                raise ValueError()563        @rule()564        def test_foo(self):565            self.num += 1566    with pytest.raises(ValueError):567        run_state_machine_as_test(BadPrecondition)568def test_always_runs_at_least_one_step():569    class CountSteps(RuleBasedStateMachine):570        def __init__(self):571            super().__init__()572            self.count = 0573        @rule()574        def do_something(self):575            self.count += 1576        def teardown(self):577            assert self.count > 0578    run_state_machine_as_test(CountSteps)579def test_removes_needless_steps():580    """Regression test from an example based on581    tests/nocover/test_database_agreement.py, but without the expensive bits.582    Comparing two database implementations in which deletion is broken, so as583    soon as a key/value pair is successfully deleted the test will now fail if584    you ever check that key.585    The main interesting feature of this is that it has a lot of586    opportunities to generate keys and values before it actually fails,587    but will still fail with very high probability.588    """589    @Settings(derandomize=True, max_examples=1000, deadline=None)590    class IncorrectDeletion(RuleBasedStateMachine):591        def __init__(self):592            super().__init__()593            self.__saved = defaultdict(set)594            self.__deleted = defaultdict(set)595        keys = Bundle("keys")596        values = Bundle("values")597        @rule(target=keys, k=binary())598        def k(self, k):599            return k600        @rule(target=values, v=binary())601        def v(self, v):602            return v603        @rule(k=keys, v=values)604        def save(self, k, v):605            self.__saved[k].add(v)606        @rule(k=keys, v=values)607        def delete(self, k, v):608            if v in self.__saved[k]:609                self.__deleted[k].add(v)610        @rule(k=keys)611        def values_agree(self, k):612            assert not self.__deleted[k]613    with capture_out() as o:614        with pytest.raises(AssertionError):615            run_state_machine_as_test(IncorrectDeletion)616    assert o.getvalue().count(" = state.k(") == 1617    assert o.getvalue().count(" = state.v(") == 1618def test_prints_equal_values_with_correct_variable_name():619    @Settings(max_examples=100)620    class MovesBetweenBundles(RuleBasedStateMachine):621        b1 = Bundle("b1")622        b2 = Bundle("b2")623        @rule(target=b1)624        def create(self):625            return []626        @rule(target=b2, source=b1)627        def transfer(self, source):628            return source629        @rule(source=b2)630        def fail(self, source):631            assert False632    with capture_out() as o:633        with pytest.raises(AssertionError):634            run_state_machine_as_test(MovesBetweenBundles)635    result = o.getvalue()636    for m in ["create", "transfer", "fail"]:637        assert result.count("state." + m) == 1638    assert "v1 = state.create()" in result639    assert "v2 = state.transfer(source=v1)" in result640    assert "state.fail(source=v2)" in result641def test_initialize_rule():642    @Settings(max_examples=1000)643    class WithInitializeRules(RuleBasedStateMachine):644        initialized = []645        @initialize()646        def initialize_a(self):647            self.initialized.append("a")648        @initialize()649        def initialize_b(self):650            self.initialized.append("b")651        @initialize()652        def initialize_c(self):653            self.initialized.append("c")654        @rule()655        def fail_fast(self):656            assert False657    with capture_out() as o:658        with pytest.raises(AssertionError):659            run_state_machine_as_test(WithInitializeRules)660    assert set(WithInitializeRules.initialized[-3:]) == {"a", "b", "c"}661    result = o.getvalue().splitlines()[1:]662    assert result[0] == "state = WithInitializeRules()"663    # Initialize rules call order is shuffled664    assert {result[1], result[2], result[3]} == {665        "state.initialize_a()",666        "state.initialize_b()",667        "state.initialize_c()",668    }669    assert result[4] == "state.fail_fast()"670    assert result[5] == "state.teardown()"671def test_initialize_rule_populate_bundle():672    class WithInitializeBundleRules(RuleBasedStateMachine):673        a = Bundle("a")674        @initialize(target=a, dep=just("dep"))675        def initialize_a(self, dep):676            return "a v1 with (%s)" % dep677        @rule(param=a)678        def fail_fast(self, param):679            assert False680    WithInitializeBundleRules.TestCase.settings = NO_BLOB_SETTINGS681    with capture_out() as o:682        with pytest.raises(AssertionError):683            run_state_machine_as_test(WithInitializeBundleRules)684    result = o.getvalue()685    assert (...

get_locale_item.py

Source:get_locale_item.py

...129        return self130    def with_language(self, value: str) -> GetLocaleItem:131        self.language = value132        return self133    def with_populate_bundle(self, value: bool) -> GetLocaleItem:134        self.populate_bundle = value135        return self136    def with_region(self, value: str) -> GetLocaleItem:137        self.region = value138        return self139    def with_store_id(self, value: str) -> GetLocaleItem:140        self.store_id = value141        return self142    # endregion with_x methods143    # region to methods144    def to_dict(self, include_empty: bool = False) -> dict:145        result: dict = {}146        if hasattr(self, "item_id") and self.item_id:147            result["itemId"] = str(self.item_id)...

public_get_item.py

Source:public_get_item.py

...121        return self122    def with_language(self, value: str) -> PublicGetItem:123        self.language = value124        return self125    def with_populate_bundle(self, value: bool) -> PublicGetItem:126        self.populate_bundle = value127        return self128    def with_region(self, value: str) -> PublicGetItem:129        self.region = value130        return self131    def with_store_id(self, value: str) -> PublicGetItem:132        self.store_id = value133        return self134    # endregion with_x methods135    # region to methods136    def to_dict(self, include_empty: bool = False) -> dict:137        result: dict = {}138        if hasattr(self, "item_id") and self.item_id:139            result["itemId"] = str(self.item_id)...

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