New issue 660: Module scope fixture runs on function scope
https://bitbucket.org/hpk42/pytest/issue/660/module-scope-fixture-runs-on-function
Praveen Shirali:
I came across the following situation which I have simplified into the example
below.
If a `Module Fixture` depends on a `Function Fixture` and a test depends on
both, but has `(Function Fixture, Module Fixture)` in its argument order, the
`Module Fixture` is reduced to run as a `Function Fixture`
Tested on py.test 2.6.4
```
#!python
import pytest
class SomeClass(object): pass
@pytest.fixture
def function_fixture(request):
def fin():
print "I am a function finalizer"
request.addfinalizer(fin)
print "\n"
print "I am a function fixture"
return SomeClass()
@pytest.fixture(scope="module")
def module_fixture(request, function_fixture):
def fin():
print "I am a module finalizer"
request.addfinalizer(fin)
print "I am a module fixture"
return SomeClass()
def test_one(function_fixture, module_fixture):
print "Test One"
print "Module Fixture: {}".format(module_fixture)
def test_two(function_fixture, module_fixture):
print "Test Two"
print "Module Fixture: {}".format(module_fixture)
```
Output: (-s --verbose)
```
test.py::test_one
I am a function fixture
I am a module fixture
Test One
Module Fixture: <test.SomeClass object at 0x102f037d0>
PASSEDI am a module finalizer
I am a function finalizer
test.py::test_two
I am a function fixture
I am a module fixture
Test Two
Module Fixture: <test.SomeClass object at 0x102f48fd0>
PASSEDI am a module finalizer
I am a function finalizer
```
Notice that the Module Fixture code has executed twice and the addresses of the
SomeClass instances are different.
If `module_fixture` did not depend on `function_fixture`, the `module_fixture`
would run only once. Test function calling `(module_fixture, function_fixture)`
results in a `ScopeMismatchError`.
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