New issue 329: Unittesting with mock objects fails in tox with @patch decorator
https://bitbucket.org/hpk42/tox/issues/329/unittesting-with-mock-objects-fails-in-tox
Arthur Lutz:
I have some unittests that work fine when directly run with python (python -R
-m coverage run -m pytest <FOLDER>/test),
The code looks like this
```
@patch('elasticsearch.client.Elasticsearch.index')
def test_es_hooks_modify(self, index):
```
and generates the following error when run in tox
```
/usr/lib/python2.7/dist-packages/mock/mock.py:721: AttributeError
___________________________________________________________
ExportElasticSearchTC.test_es_hooks_modify
_____________________________________________________
args = (<test_elastic_search.ExportElasticSearchTC
testMethod=test_es_hooks_modify>, <MagicMock name='index'
id='140487100643792'>), keywargs = {}
extra_args = [<MagicMock name='index' id='140487100643792'>], entered_patchers
= [<mock.mock._patch object at 0x7fc5b6522bd0>]
exc_info = (<type 'exceptions.AttributeError'>,
AttributeError('assert_called',), <traceback object at 0x7fc5b39af638>)
patching = <mock.mock._patch object at 0x7fc5b6522bd0>, arg = <MagicMock
name='index' id='140487100643792'>
@wraps(func)
def patched(*args, **keywargs):
extra_args = []
entered_patchers = []
exc_info = tuple()
try:
for patching in patched.patchings:
arg = patching.__enter__()
entered_patchers.append(patching)
if patching.attribute_name is not None:
keywargs.update(arg)
elif patching.new is DEFAULT:
extra_args.append(arg)
args += tuple(extra_args)
> return func(*args, **keywargs)
```
Reading the mock code, I try out adding unsafe
```
@patch('elasticsearch.client.Elasticsearch.index', unsafe=True)
def test_es_hooks_modify(self, index):
```
And this works in both tox and directly from python.
Is this a mock bug ? a pytest bug ? is tox doing something that might affect
the way mock works ?
Do you need extra context ?
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