Shorter option names for pytest fixture variants with long names

Question

I am testing a function with several incoming datasets defined as fixtures, but the fixture names get quite cumbersome to distinguish them from one another.

@pytest.fixture()
def dataset_with_foo():
    pass

@pytest.fixture()
def dataset_with_bar():
    pass

@pytest.fixture()
def dataset_with_foo_and_bar():
    pass

def test_something(dataset_with_foo_and_bar):
    pass

Is there a way to define some kind of alias for the option name to be shorter? For instance, something like:

@usesfixture("dataset_with_foo_and_bar", option_name="dataset")
def test_something(dataset):
    pass

Answer 1

Ok, the best way I could find to do it is by using deferred parametrized fixtures:

@pytest.fixture()
def dataset(request):
    mapping = {
        "with-foo": create_dataset_with_foo(),
        "with-bar": create_dataset_with_bar(),
        "with-foo-and-bar": create_dataset_with_foo_and_bar(),
    }

    return mapping[request.param]

def create_dataset_with_foo():
    pass 

def create_dataset_with_bar():
    pass

def create_dataset_with_foo_and_bar():
    pass

@pytest.mark.parametrize("dataset", ["with-foo"], indirect=True)
def test_something(dataset):
    pass

@pytest.mark.parametrize("dataset", ["with-foo-and-bar"], indirect=True)
def test_something(dataset):
    pass

There has been other attempts using pytest-lazy-fixture or specialized decorator, but I find it a bit too hacky.. https://gist.github.com/wcooley/7472b8de6edb1e8ceda560843c0519a8