Changelog
### 4.0.3
```
-----
- Issue 42532: Remove unexpected call of ``__bool__`` when passing a
``spec_arg`` argument to a Mock.
- Issue 39966: Revert bpo-25597. :class:`unittest.mock.MagicMock` with
wraps' set uses default return values for magic methods.
- Issue 41877: Mock objects which are not unsafe will now raise an
AttributeError if an attribute with the prefix asert, aseert, or assrt is
accessed, in addition to this already happening for the prefixes assert or
assret.
- Issue 40126: Fixed reverting multiple patches in unittest.mock. Patcher's
``__exit__()`` is now never called if its ``__enter__()`` is failed.
Returning true from ``__exit__()`` silences now the exception.
```
### 4.0.2
```
-----
- Issue 39915: Ensure :attr:`unittest.mock.AsyncMock.await_args_list` has
call objects in the order of awaited arguments instead of using
:attr:`unittest.mock.Mock.call_args` which has the last value of the call.
Patch by Karthikeyan Singaravelan.
```
### 4.0.1
```
-----
- Remove the universal marker from the wheel.
```
### 4.0.0
```
-----
- No Changes from 4.0.0b1.
```
### 4.0.0b1
```
-------
- The release is a fresh cut of cpython's `4a686504`__. All changes to :mod:`mock`
from that commit and before are included in this release along with the
subsequent changes listed below.
__ https://github.com/python/cpython/commit/4a686504eb2bbf69adf78077458508a7ba131667
- Issue 37972: Subscripts to the `unittest.mock.call` objects now receive
the same chaining mechanism as any other custom attributes, so that the
following usage no longer raises a `TypeError`:
call().foo().__getitem__('bar')
Patch by blhsing
- Issue 38839: Fix some unused functions in tests. Patch by Adam Johnson.
- Issue 39485: Fix a bug in :func:`unittest.mock.create_autospec` that
would complain about the wrong number of arguments for custom descriptors
defined in an extension module returning functions.
- Issue 39082: Allow AsyncMock to correctly patch static/class methods
- Issue 38093: Fixes AsyncMock so it doesn't crash when used with
AsyncContextManagers or AsyncIterators.
- Issue 38859: AsyncMock now returns StopAsyncIteration on the exaustion of
a side_effects iterable. Since PEP-479 its Impossible to raise a
StopIteration exception from a coroutine.
- Issue 38163: Child mocks will now detect their type as either synchronous
or asynchronous, asynchronous child mocks will be AsyncMocks and
synchronous child mocks will be either MagicMock or Mock (depending on
their parent type).
- Issue 38473: Use signature from inner mock for autospecced methods
attached with :func:`unittest.mock.attach_mock`. Patch by Karthikeyan
Singaravelan.
- Issue 38136: Changes AsyncMock call count and await count to be two
different counters. Now await count only counts when a coroutine has been
awaited, not when it has been called, and vice-versa. Update the
documentation around this.
- Issue 37555: Fix `NonCallableMock._call_matcher` returning tuple instead
of `_Call` object when `self._spec_signature` exists. Patch by Elizabeth
Uselton
- Issue 37251: Remove `__code__` check in AsyncMock that incorrectly
evaluated function specs as async objects but failed to evaluate classes
with `__await__` but no `__code__` attribute defined as async objects.
- Issue 38669: Raise :exc:`TypeError` when passing target as a string with
:meth:`unittest.mock.patch.object`.
- Issue 25597: Ensure, if ``wraps`` is supplied to
:class:`unittest.mock.MagicMock`, it is used to calculate return values
for the magic methods instead of using the default return values. Patch by
Karthikeyan Singaravelan.
- Issue 38108: Any synchronous magic methods on an AsyncMock now return a
MagicMock. Any asynchronous magic methods on a MagicMock now return an
AsyncMock.
- Issue 21478: Record calls to parent when autospecced object is attached
to a mock using :func:`unittest.mock.attach_mock`. Patch by Karthikeyan
Singaravelan.
- Issue 38857: AsyncMock fix for return values that are awaitable types.
This also covers side_effect iterable values that happend to be awaitable,
and wraps callables that return an awaitable type. Before these awaitables
were being awaited instead of being returned as is.
- Issue 38932: Mock fully resets child objects on reset_mock(). Patch by
Vegard Stikbakke
- Issue 37685: Fixed ``__eq__``, ``__lt__`` etc implementations in some
classes. They now return :data:`NotImplemented` for unsupported type of
the other operand. This allows the other operand to play role (for example
the equality comparison with :data:`~unittest.mock.ANY` will return
``True``).
- Issue 37212: :func:`unittest.mock.call` now preserves the order of
keyword arguments in repr output. Patch by Karthikeyan Singaravelan.
- Issue 37828: Fix default mock name in
:meth:`unittest.mock.Mock.assert_called` exceptions. Patch by Abraham
Toriz Cruz.
- Issue 36871: Improve error handling for the assert_has_calls and
assert_has_awaits methods of mocks. Fixed a bug where any errors
encountered while binding the expected calls to the mock's spec were
silently swallowed, leading to misleading error output.
- Issue 21600: Fix :func:`mock.patch.stopall` to stop active patches that
were created with :func:`mock.patch.dict`.
- Issue 38161: Removes _AwaitEvent from AsyncMock.
- Issue 36871: Ensure method signature is used instead of constructor
signature of a class while asserting mock object against method calls.
Patch by Karthikeyan Singaravelan.
```
### 3.0.5
```
-----
- Issue 31855: :func:`unittest.mock.mock_open` results now respects the
argument of read([size]). Patch contributed by Rémi Lapeyre.
```
### 3.0.4
```
-----
- Include the license, readme and changelog in the source distribution.
```
### 3.0.3
```
-----
- Fixed patching of dictionaries, when specifying the target with a
unicode on Python 2.
```
### 3.0.2
```
-----
- Add missing ``funcsigs`` dependency on Python 2.
```
### 3.0.1
```
-----
- Fix packaging issue where ``six`` was missed as a dependency.
```
### 3.0.0
```
-----
- 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.
```
### 2.0.0
```
-----------------
- Issue 26323: Add Mock.assert_called() and Mock.assert_called_once()
methods to unittest.mock. Patch written by Amit Saha.
- Issue 22138: Fix mock.patch behavior when patching descriptors. Restore
original values after patching. Patch contributed by Sean McCully.
- Issue 24857: Comparing call_args to a long sequence now correctly returns a
boolean result instead of raising an exception. Patch by A Kaptur.
- Issue 23004: mock_open() now reads binary data correctly when the type of
read_data is bytes. Initial patch by Aaron Hill.
- Issue 21750: mock_open.read_data can now be read from each instance, as it
could in Python 3.3.
- Issue 18622: unittest.mock.mock_open().reset_mock would recurse infinitely.
Patch from Nicola Palumbo and Laurent De Buyst.
- Issue 23661: unittest.mock side_effects can now be exceptions again. This
was a regression vs Python 3.4. Patch from Ignacio Rossi
- Issue 23310: Fix MagicMock's initializer to work with __methods__, just
like configure_mock(). Patch by Kasia Jachim.
- Issue 23568: Add rdivmod support to MagicMock() objects.
Patch by Håkan Lövdahl.
- Issue 23581: Add matmul support to MagicMock. Patch by Håkan Lövdahl.
- Issue 23326: Removed __ne__ implementations. Since fixing default __ne__
implementation in issue 21408 they are redundant. *** NOT BACKPORTED ***
- Issue 21270: We now override tuple methods in mock.call objects so that
they can be used as normal call attributes.
- Issue 21256: Printout of keyword args should be in deterministic order in
a mock function call. This will help to write better doctests.
- Issue 21262: New method assert_not_called for Mock.
It raises AssertionError if the mock has been called.
- Issue 21238: New keyword argument `unsafe` to Mock. It raises
`AttributeError` incase of an attribute startswith assert or assret.
- Issue 21239: patch.stopall() didn't work deterministically when the same
name was patched more than once.
- Issue 21222: Passing name keyword argument to mock.create_autospec now
works.
- Issue 17826: setting an iterable side_effect on a mock function created by
create_autospec now works. Patch by Kushal Das.
- Issue 17826: setting an iterable side_effect on a mock function created by
create_autospec now works. Patch by Kushal Das.
- Issue 20968: unittest.mock.MagicMock now supports division.
Patch by Johannes Baiter.
- Issue 20189: unittest.mock now no longer assumes that any object for
which it could get an inspect.Signature is a callable written in Python.
Fix courtesy of Michael Foord.
- Issue 17467: add readline and readlines support to mock_open in
unittest.mock.
- Issue 17015: When it has a spec, a Mock object now inspects its signature
when matching calls, so that arguments can be matched positionally or
by name.
- Issue 15323: improve failure message of Mock.assert_called_once_with
- Issue 14857: fix regression in references to PEP 3135 implicit __class__
closure variable (Reopens issue 12370)
- Issue 14295: Add unittest.mock
```
Links
- PyPI: https://pypi.org/project/mock
- Changelog: https://pyup.io/changelogs/mock/
- Docs: http://mock.readthedocs.org/en/latest/
This PR pins mock to the latest release 4.0.3.
Changelog
### 4.0.3 ``` ----- - Issue 42532: Remove unexpected call of ``__bool__`` when passing a ``spec_arg`` argument to a Mock. - Issue 39966: Revert bpo-25597. :class:`unittest.mock.MagicMock` with wraps' set uses default return values for magic methods. - Issue 41877: Mock objects which are not unsafe will now raise an AttributeError if an attribute with the prefix asert, aseert, or assrt is accessed, in addition to this already happening for the prefixes assert or assret. - Issue 40126: Fixed reverting multiple patches in unittest.mock. Patcher's ``__exit__()`` is now never called if its ``__enter__()`` is failed. Returning true from ``__exit__()`` silences now the exception. ``` ### 4.0.2 ``` ----- - Issue 39915: Ensure :attr:`unittest.mock.AsyncMock.await_args_list` has call objects in the order of awaited arguments instead of using :attr:`unittest.mock.Mock.call_args` which has the last value of the call. Patch by Karthikeyan Singaravelan. ``` ### 4.0.1 ``` ----- - Remove the universal marker from the wheel. ``` ### 4.0.0 ``` ----- - No Changes from 4.0.0b1. ``` ### 4.0.0b1 ``` ------- - The release is a fresh cut of cpython's `4a686504`__. All changes to :mod:`mock` from that commit and before are included in this release along with the subsequent changes listed below. __ https://github.com/python/cpython/commit/4a686504eb2bbf69adf78077458508a7ba131667 - Issue 37972: Subscripts to the `unittest.mock.call` objects now receive the same chaining mechanism as any other custom attributes, so that the following usage no longer raises a `TypeError`: call().foo().__getitem__('bar') Patch by blhsing - Issue 38839: Fix some unused functions in tests. Patch by Adam Johnson. - Issue 39485: Fix a bug in :func:`unittest.mock.create_autospec` that would complain about the wrong number of arguments for custom descriptors defined in an extension module returning functions. - Issue 39082: Allow AsyncMock to correctly patch static/class methods - Issue 38093: Fixes AsyncMock so it doesn't crash when used with AsyncContextManagers or AsyncIterators. - Issue 38859: AsyncMock now returns StopAsyncIteration on the exaustion of a side_effects iterable. Since PEP-479 its Impossible to raise a StopIteration exception from a coroutine. - Issue 38163: Child mocks will now detect their type as either synchronous or asynchronous, asynchronous child mocks will be AsyncMocks and synchronous child mocks will be either MagicMock or Mock (depending on their parent type). - Issue 38473: Use signature from inner mock for autospecced methods attached with :func:`unittest.mock.attach_mock`. Patch by Karthikeyan Singaravelan. - Issue 38136: Changes AsyncMock call count and await count to be two different counters. Now await count only counts when a coroutine has been awaited, not when it has been called, and vice-versa. Update the documentation around this. - Issue 37555: Fix `NonCallableMock._call_matcher` returning tuple instead of `_Call` object when `self._spec_signature` exists. Patch by Elizabeth Uselton - Issue 37251: Remove `__code__` check in AsyncMock that incorrectly evaluated function specs as async objects but failed to evaluate classes with `__await__` but no `__code__` attribute defined as async objects. - Issue 38669: Raise :exc:`TypeError` when passing target as a string with :meth:`unittest.mock.patch.object`. - Issue 25597: Ensure, if ``wraps`` is supplied to :class:`unittest.mock.MagicMock`, it is used to calculate return values for the magic methods instead of using the default return values. Patch by Karthikeyan Singaravelan. - Issue 38108: Any synchronous magic methods on an AsyncMock now return a MagicMock. Any asynchronous magic methods on a MagicMock now return an AsyncMock. - Issue 21478: Record calls to parent when autospecced object is attached to a mock using :func:`unittest.mock.attach_mock`. Patch by Karthikeyan Singaravelan. - Issue 38857: AsyncMock fix for return values that are awaitable types. This also covers side_effect iterable values that happend to be awaitable, and wraps callables that return an awaitable type. Before these awaitables were being awaited instead of being returned as is. - Issue 38932: Mock fully resets child objects on reset_mock(). Patch by Vegard Stikbakke - Issue 37685: Fixed ``__eq__``, ``__lt__`` etc implementations in some classes. They now return :data:`NotImplemented` for unsupported type of the other operand. This allows the other operand to play role (for example the equality comparison with :data:`~unittest.mock.ANY` will return ``True``). - Issue 37212: :func:`unittest.mock.call` now preserves the order of keyword arguments in repr output. Patch by Karthikeyan Singaravelan. - Issue 37828: Fix default mock name in :meth:`unittest.mock.Mock.assert_called` exceptions. Patch by Abraham Toriz Cruz. - Issue 36871: Improve error handling for the assert_has_calls and assert_has_awaits methods of mocks. Fixed a bug where any errors encountered while binding the expected calls to the mock's spec were silently swallowed, leading to misleading error output. - Issue 21600: Fix :func:`mock.patch.stopall` to stop active patches that were created with :func:`mock.patch.dict`. - Issue 38161: Removes _AwaitEvent from AsyncMock. - Issue 36871: Ensure method signature is used instead of constructor signature of a class while asserting mock object against method calls. Patch by Karthikeyan Singaravelan. ``` ### 3.0.5 ``` ----- - Issue 31855: :func:`unittest.mock.mock_open` results now respects the argument of read([size]). Patch contributed by Rémi Lapeyre. ``` ### 3.0.4 ``` ----- - Include the license, readme and changelog in the source distribution. ``` ### 3.0.3 ``` ----- - Fixed patching of dictionaries, when specifying the target with a unicode on Python 2. ``` ### 3.0.2 ``` ----- - Add missing ``funcsigs`` dependency on Python 2. ``` ### 3.0.1 ``` ----- - Fix packaging issue where ``six`` was missed as a dependency. ``` ### 3.0.0 ``` ----- - 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. ``` ### 2.0.0 ``` ----------------- - Issue 26323: Add Mock.assert_called() and Mock.assert_called_once() methods to unittest.mock. Patch written by Amit Saha. - Issue 22138: Fix mock.patch behavior when patching descriptors. Restore original values after patching. Patch contributed by Sean McCully. - Issue 24857: Comparing call_args to a long sequence now correctly returns a boolean result instead of raising an exception. Patch by A Kaptur. - Issue 23004: mock_open() now reads binary data correctly when the type of read_data is bytes. Initial patch by Aaron Hill. - Issue 21750: mock_open.read_data can now be read from each instance, as it could in Python 3.3. - Issue 18622: unittest.mock.mock_open().reset_mock would recurse infinitely. Patch from Nicola Palumbo and Laurent De Buyst. - Issue 23661: unittest.mock side_effects can now be exceptions again. This was a regression vs Python 3.4. Patch from Ignacio Rossi - Issue 23310: Fix MagicMock's initializer to work with __methods__, just like configure_mock(). Patch by Kasia Jachim. - Issue 23568: Add rdivmod support to MagicMock() objects. Patch by Håkan Lövdahl. - Issue 23581: Add matmul support to MagicMock. Patch by Håkan Lövdahl. - Issue 23326: Removed __ne__ implementations. Since fixing default __ne__ implementation in issue 21408 they are redundant. *** NOT BACKPORTED *** - Issue 21270: We now override tuple methods in mock.call objects so that they can be used as normal call attributes. - Issue 21256: Printout of keyword args should be in deterministic order in a mock function call. This will help to write better doctests. - Issue 21262: New method assert_not_called for Mock. It raises AssertionError if the mock has been called. - Issue 21238: New keyword argument `unsafe` to Mock. It raises `AttributeError` incase of an attribute startswith assert or assret. - Issue 21239: patch.stopall() didn't work deterministically when the same name was patched more than once. - Issue 21222: Passing name keyword argument to mock.create_autospec now works. - Issue 17826: setting an iterable side_effect on a mock function created by create_autospec now works. Patch by Kushal Das. - Issue 17826: setting an iterable side_effect on a mock function created by create_autospec now works. Patch by Kushal Das. - Issue 20968: unittest.mock.MagicMock now supports division. Patch by Johannes Baiter. - Issue 20189: unittest.mock now no longer assumes that any object for which it could get an inspect.Signature is a callable written in Python. Fix courtesy of Michael Foord. - Issue 17467: add readline and readlines support to mock_open in unittest.mock. - Issue 17015: When it has a spec, a Mock object now inspects its signature when matching calls, so that arguments can be matched positionally or by name. - Issue 15323: improve failure message of Mock.assert_called_once_with - Issue 14857: fix regression in references to PEP 3135 implicit __class__ closure variable (Reopens issue 12370) - Issue 14295: Add unittest.mock ```Links
- PyPI: https://pypi.org/project/mock - Changelog: https://pyup.io/changelogs/mock/ - Docs: http://mock.readthedocs.org/en/latest/