Mark test as skipped from pytest_collection_modifyitems

Question

How can I mark a test as skipped in pytest collection process?

What I'm trying to do is have pytest collect all tests and then using the pytest_collection_modifyitems hook mark a certain test as skipped according to a condition I get from a database.

I found a solution which I don't like, I was wondering if maybe there is a better way.

def pytest_collection_modifyitems(items, config):
    ... # get skip condition from database
    for item in items:
        if skip_condition == True:
            item._request.applymarker(pytest.mark.skipif(True, reason='Put any reason here'))

The problem with this solution is I'm accessing a protected member (_request) of the class..

Answer 1

You were almost there. You just need item.add_marker

def pytest_collection_modifyitems(config, items):
    skip = pytest.mark.skip(reason="Skipping this because ...")
    for item in items:
        if skip_condition:  # NB You don't need the == True
            item.add_marker(skip)

Note that item has an iterable attribute keywords which contains its markers. So you can use that too.

See pytest documentation on this topic.

Answer 2

You can iterate over testcases (items) and skip them using a common fixture. With 'autouse=True' you shouldn't pass it in each testcase as a parameter:

@pytest.fixture(scope='function', autouse=True)
def my_common_fixture(request):
    if True:
       pytest.skip('Put any reason here')