[py-svn] [hpk42/pytest] yield and funcarg don't mix (issue #227)

[James Laska]

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New issue 227: yield and funcarg don't mix
https://bitbucket.org/hpk42/pytest/issue/227/yield-and-funcarg-dont-mix

James Laska:

This appears to be similar in spirit to the problem reported in issue #16

pytest doesn't yield properly when called within a function/method that uses generated func_args.

For example, the following test:

```
#!python

def pytest_funcarg__bar(request):
    return "bar"

def test_good():
    pass

def test_bad(bar):
    yield 'bad-func-yield', True

class Testitem(object):

    def test_foo(self, bar):
        yield 'bad-method-yield', True
```

Fails to yield as expected ...

```
#!python

============================================================================================= test session starts =============================================================================================
platform linux2 -- Python 2.7.3 -- pytest-2.3.3
plugins: xdist, mozwebqa
collected 1 items / 2 errors 

../../../../tmp/test_yield.py .

=================================================================================================== ERRORS ====================================================================================================
_______________________________________________________________________________ ERROR collecting ../../../../tmp/test_yield.py ________________________________________________________________________________
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/runner.py:121: in __init__
>               self.result = func()
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/main.py:366: in _memocollect
>       return self._memoizedcall('_collected', lambda: list(self.collect()))
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/main.py:287: in _memoizedcall
>           res = function()
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/main.py:366: in <lambda>
>   return self._memoizedcall('_collected', lambda: list(self.collect()))
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/python.py:494: in collect
>       for i, x in enumerate(self.obj()):
E           TypeError: test_bad() takes exactly 1 argument (0 given)
_______________________________________________________________________________ ERROR collecting ../../../../tmp/test_yield.py ________________________________________________________________________________
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/runner.py:121: in __init__
>               self.result = func()
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/main.py:366: in _memocollect
>       return self._memoizedcall('_collected', lambda: list(self.collect()))
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/main.py:287: in _memoizedcall
>           res = function()
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/main.py:366: in <lambda>
>   return self._memoizedcall('_collected', lambda: list(self.collect()))
/home/devel/jlaska/.python/lib/python2.7/site-packages/_pytest/python.py:494: in collect
>       for i, x in enumerate(self.obj()):
E           TypeError: test_foo() takes exactly 2 arguments (1 given)
====================================================================================== 1 passed, 2 error in 3.58 seconds ======================================================================================

```


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