How to retrieve the markers for py.test in conftest.py?

Question

I am running tests with py.test and want to access the markers I have set on the command line. I have tried the following code inside conftest.py (based on the documentation I found here ) in a fixture that is used by every running test (ie a fixture that setup the test):

@pytest.fixture
def basedriver(request):
    ...
    node = request.node
    print("Marker: %s" % str(node.get_marker('set1')))
    ...

but when I invoke the test like follows:

py.test -s -m "set1 or ready"

I get the following output

Marker: None

I seem to do it wrong. How to do it right?

Ideally, I can retrieve the whole string, ie "set1 or ready"...

Answer 1

request.node is the test function object, so request.node.get_closest_marker('set1') returns the marker attached to the test currently being executed, or None if a marker with the name cannot be found. For example, running a test

@pytest.fixture
def basedriver(request):
    node = request.node
    print('Marker:', node.get_closest_marker('set1'))

@pytest.mark.set1
def test_spam(basedriver):
    assert True

def test_eggs(basedriver):
    assert True

will print

test_spam.py::test_spam Marker: MarkInfo(_marks=[Mark(name='set1', args=(), kwargs={})])
PASSED
test_spam.py::test_eggs Marker: None
PASSED

What you want is the passed value of the command line argument -m . Access it via config fixture:

@pytest.fixture
def basedriver(pytestconfig):
    markers_arg = pytestconfig.getoption('-m')
    print('markers passed from command line:', markers_arg)
    ...

Answer 2

Unfortunately the

`request.node.get_marker('set1') `

is not working anymore. But you can change it to:

request.node.get_closest_marker('set1') 

see:

https://docs.pytest.org/en/latest/historical-notes.html#update-marker-code

Answer 3

Came across this while looking for a way to find markers that a test has been marked with and the previous answers weren't working for me since get_closest_marker('set1') requires "hard-coding" a value and what I wanted was to be able to grab and log the current marker without knowing what it "should" be .

Below example helped me with my use case.

    import pytest
    from loguru import logger


    @pytest.fixture(autouse=True)
    def get_marker(request):
        markers = request.node.own_markers
        for marker in markers:
            logger.info(f'Marker: {marker.name}')
    
    
    @pytest.mark.tagged
    @pytest.mark.tagged_again
    def test_tag_test():
        logger.info('This is a tagged test')
    
    
    def test_non_tag_test():
        logger.info('This is NOT a tagged test')

Output:

23/Aug/2022 10:8:9 - INFO: Marker: tagged_again
23/Aug/2022 10:8:9 - INFO: Marker: tagged
23/Aug/2022 10:8:9 - INFO: This is a tagged test