Skip test depending on parameter in py.test

Question

I have a test fixture with session scope which is parametrized, e.g.

@pytest.fixture(scope="session", params=["one", "two", "three"])
def myfixture():
    ...

In my directory, I have files which use pytest.mark.usefixtures("myfixture") and one file which contains tests should be run only for myfixture with "two" parameter and py.test should skip it otherwise.

Are there any ways to achieve this in py.test or do I need to set a special variable in some class in myfixture() function?

Answer 1

Found solution myself, one can define function in conftest.py:

def pytest_namespace():
    return {"param": None}

And in fixture function we can do:

@pytest.fixture(scope="session", params=["one", "two", "three"])
def myfixture():
    pytest.param = request.param
    # ...

So we can wrap test class with:

@pytest.mark.skipif("pytest.param == 'value'")
class TestSmth(object):
    ...