* Restrict using Mock objects as specs as this is always a test bug where the resulting mock is misleadingly useless.
* Skip a broken test that exposes a bug elsewhere in mock (noted in the original issue).
patch, patch.object and create_autospec silently ignore misspelled
arguments such as autospect, auto_spec and set_spec. This can lead
to tests failing to check what they are supposed to check.
This change adds a check causing a RuntimeError if the above
functions get any of the above misspellings as arguments. It also
adds a new argument, "unsafe", which can be set to True to disable
this check.
Also add "!r" to format specifiers in added error messages.
This is a follow-up to
4662fa9bfe.
That original commit expanded guards against misspelling assertions on
mocks. This follow-up updates the documentation and improves the error
message by pointing out the potential cause and solution.
Automerge-Triggered-By: GH:gpshead
Currently, a Mock object which is not unsafe will raise an
AttributeError if an attribute with the prefix assert or assret is
accessed on it. This protects against misspellings of real assert
method calls, which lead to tests passing silently even if the tested
code does not satisfy the intended assertion.
Recently a check was done in a large code base (Google) and three
more frequent ways of misspelling assert were found causing harm:
asert, aseert, assrt. These are now added to the existing check.
unittest.TestCase.assertWarns no longer raises a RuntimeException
when accessing a module's ``__warningregistry__`` causes importation of a new
module, or when a new module is imported in another thread.
Patch by Kernc.
* use the `: pass` and `: yield` patterns for code that isn't expected to ever be executed.
* The _Call items passed to _AnyComparer are only ever of length two, so assert instead of if/else
* fix typo
* Fix bug, where stop-without-start patching dict blows up with `TypeError: 'NoneType' object is not iterable`, highlighted by lack of coverage of an except branch.
* The fix for bpo-37972 means _Call.count and _Call.index are no longer needed.
* add coverage for calling next() on a mock_open with readline.return_value set.
* __aiter__ is defined on the Mock so the one on _AsyncIterator is never called.
Replace check for whether something is a method in the mock module. The
previous version fails on PyPy, because there no method wrappers exist
(everything looks like a regular Python-defined function). Thus the
isinstance(getattr(result, '__get__', None), MethodWrapperTypes) check
returns True for any descriptor, not just methods.
This condition could also return erroneously True in CPython for
C-defined descriptors.
Instead to decide whether something is a method, just check directly
whether it's a function defined on the class. This passes all tests on
CPython and fixes the bug on PyPy.
- The gc.collect is needed for other implementations, such as pypy
- Using context managers over multiple lines will only catch the warning from the first line in the context!
- remove a skip for a test that no longer fails on pypy
As the function was not registering in the active patches, the mocks
started by `mock.patch.dict` were not being stopped when
`mock.patch.stopall` was being called.
* Add test for nested async decorator patch.
* Add test for side_effect and wraps with a function.
* Add test for side_effect with an exception in the iterable.
Capturing exceptions into names can lead to reference cycles though the __traceback__ attribute of the exceptions in some obscure cases that have been reported previously and fixed individually. As these variables are not used anyway, we can remove the binding to reduce the chances of creating reference cycles.
See for example GH-13135
The fix in PR 13261 handled the underlying issue about the spec for specific methods not being applied correctly, but it didn't fix the issue that was causing the misleading error message.
The code currently grabs a list of responses from _call_matcher (which may include exceptions). But it doesn't reach inside the list when checking if the result is an exception. This results in a misleading error message when one of the provided calls does not match the spec.
https://bugs.python.org/issue36871
Automerge-Triggered-By: @gpshead
In the format string for assert_called the evaluation order is incorrect and hence for mock's without name, 'None' is printed whereas it should be 'mock' like for other messages. The error message is ("Expected '%s' to have been called." % self._mock_name or 'mock').
Thomas Grainger
Jack DeVries
Binbin
Dong-hee Na
Matthew Suozzo
Irit Katriel
vabr-g
idanw206
Lisa Roach
Hai Shi
Kit Choi
kernc
Furkan Önder
Karthikeyan Singaravelan
Serhiy Storchaka
Batuhan Taşkaya
Steve Cirelli
Chris Withers
Carl Friedrich Bolz-Tereick
Vegard Stikbakke
Paulo Henrique Silva
Matthew Kokotovich
Mario Corchero
Emmanuel Arias
Elena Oat
Jason Fried
Pablo Galindo
Adam Johnson
Samuel Freilich
Abraham Toriz Cruz
marcoramirezmx
Michael Foord