Automatic markers

conftest.py

def pytest_collection_modifyitems(items):
    """
    Add marker to all tests in the conftest folder tree.
    
    You need to organize your tests in folders for it to work.
    
    Usage: `pytest -m $marker_expression`
    Example: `pytest -m unit1
    
    Reference: https://docs.pytest.org/en/stable/reference.html?highlight=collection_modi#pytest.hookspec.pytest_collection_modifyitems
    """
    for item in items:
        if "/integration/" in str(item.module):
            item.add_marker("integration")
        elif "/unit/" in str(item.module):
            item.add_marker("unit")
        elif "/smoke/" in str(item.module):
            item.add_marker("smoke")

pytest.ini

[pytest]
markers =
    current: tests you are currently testing
    unit: unit tests, no dependencies
    smoke: launch these ones first
    integration: has dependencies