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mock v3.0.0 Release Notes

Release Date: 2019-05-02 // almost 5 years ago

    • ✅ Issue #35226: Recursively check arguments when testing for equality of :class:unittest.mock.call objects and add note that tracking of parameters used to create ancestors of mocks in mock_calls is not possible.

    • Issue #31177: Fix bug that prevented using :meth:reset_mock <unittest.mock.Mock.reset_mock> on mock instances with deleted attributes

    • ✅ Issue #26704: Added test demonstrating double-patching of an instance method. Patch by Anthony Sottile.

    • Issue #35500: Write expected and actual call parameters on separate lines in :meth:unittest.mock.Mock.assert_called_with assertion errors. Contributed by Susan Su.

    • 🤡 Issue #35330: When a :class:Mock instance was used to wrap an object, if side_effect is used in one of the mocks of it methods, don't call the original implementation and return the result of using the side effect the same way that it is done with return_value.

    • 🤡 Issue #30541: Add new function to seal a mock and prevent the automatically creation of child mocks. Patch by Mario Corchero.

    • ✅ Issue #35022: :class:unittest.mock.MagicMock now supports the __fspath__ method (from :class:os.PathLike).

    • ✅ Issue #33516: :class:unittest.mock.MagicMock now supports the __round__ magic method.

    • ✅ Issue #35512: :func:unittest.mock.patch.dict used as a decorator with string target resolves the target during function call instead of during decorator construction. Patch by Karthikeyan Singaravelan.

    • Issue #36366: Calling stop() on an unstarted or stopped :func:unittest.mock.patch object will now return None instead of raising :exc:RuntimeError, making the method idempotent. Patch byKarthikeyan Singaravelan.

    • ✅ Issue #35357: Internal attributes' names of unittest.mock.Call and unittest.mock.MagicProxy (name, parent & from_kall) are now prefixed with _mock in order to prevent clashes with widely used object attributes. Fixed minor typo in test function name.

    • Issue #20239: Allow repeated assignment deletion of :class:unittest.mock.Mock attributes. Patch by Pablo Galindo.

    • Issue #35082: Don't return deleted attributes when calling dir on a :class:unittest.mock.Mock.

    • Issue #0: Improved an error message when mock assert_has_calls fails.

    • 👍 Issue #23078: Add support for :func:classmethod and :func:staticmethod to :func:unittest.mock.create_autospec. Initial patch by Felipe Ochoa.

    • Issue #21478: Calls to a child function created with :func:unittest.mock.create_autospec should propagate to the parent. Patch by Karthikeyan Singaravelan.

    • 🤡 Issue #36598: Fix isinstance check for Mock objects with spec when the code is executed under tracing. Patch by Karthikeyan Singaravelan.

    • ✅ Issue #32933: :func:unittest.mock.mock_open now supports iteration over the file contents. Patch by Tony Flury.

    • 🤡 Issue #21269: Add args and kwargs properties to mock call objects. Contributed by Kumar Akshay.

    • Issue #17185: Set __signature__ on mock for :mod:inspect to get signature. Patch by Karthikeyan Singaravelan.

    • ✅ Issue #35047: unittest.mock now includes mock calls in exception messages if assert_not_called, assert_called_once, or assert_called_once_with fails. Patch by Petter Strandmark.

    • ✅ Issue #28380: unittest.mock Mock autospec functions now properly support assert_called, assert_not_called, and assert_called_once.

    • 🤡 Issue #28735: Fixed the comparison of mock.MagickMock with mock.ANY.

    • ✅ Issue #20804: The unittest.mock.sentinel attributes now preserve their identity when they are copied or pickled.

    • ✅ Issue #28961: Fix unittest.mock._Call helper: don't ignore the name parameter anymore. Patch written by Jiajun Huang.

    • ✅ Issue #26750: unittest.mock.create_autospec() now works properly for subclasses of property() and other data descriptors.

    • Issue #21271: New keyword only parameters in reset_mock call.

    • 🤡 Issue #26807: mock_open 'files' no longer error on readline at end of file. Patch from Yolanda Robla.

    • 🤡 Issue #25195: Fix a regression in mock.MagicMock. Call is a subclass of tuple (changeset 3603bae63c13 only works for classes) so we need to implement __ne_ ourselves. Patch by Andrew Plummer.