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How to use test_cannot_instantiate_without_exceptions method in elementium

Best Python code snippet using elementium_python

test_waiters.py

Source:test_waiters.py

...66            w._check_args(n=-1, ttl=1)67class ExceptionRetryWaiterMixin(object):68    def waiter(self, exceptions):69        raise NotImplementedError("Subclass must return appropriate waiter")70    def test_cannot_instantiate_without_exceptions(self):71        with self.assertRaises(ValueError):72            self.waiter(None)73        with self.assertRaises(ValueError):74            self.waiter([])75    def test_does_retry_for_registered_exception_with_n_retries(self):76        f = MagicMock(side_effect=TypeError('Oops'))77        with self.assertRaises(TypeError):78            self.waiter(TypeError).wait(f, n=2)79        self.assertEqual(f.call_count, 2)80    def test_does_retry_for_registered_exception_with_ttl_retries(self):81        f = MagicMock(side_effect=TypeError('Oops'))82        start_time = time.time()83        with self.assertRaises(TypeError):84            self.waiter(TypeError).wait(f, ttl=2)...

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