How to call fixtures if cli is not given and call fixtures when cli is given.

[Montekkundan]

Hi,

I made these fixtures in my conftest.py :

my_list = [webdriver.Chrome(service=Service(ChromeDriverManager().install()), options=chrome_options),
           webdriver.Firefox(service=Service(GeckoDriverManager().install()), options=firefox_options),
           webdriver.Edge(service=Service(EdgeChromiumDriverManager().install()), options=edge_options)
           ]
@pytest.fixture(scope="session", params=my_list, ids=["chrome", "firefox", "edge"])
def setup(request):
    return request.param

chrome_list = [webdriver.Chrome(service=Service(ChromeDriverManager().install()), options=chrome_options)
               ]
firefox_list = [webdriver.Chrome(service=Service(ChromeDriverManager().install()), options=chrome_options)
                ]
edge_list = [webdriver.Chrome(service=Service(ChromeDriverManager().install()), options=chrome_options)
             ]

def pytest_addoption(parser):
    parser.addoption('--chrome', action='store_const', const=True)
    parser.addoption('--firefox', action='store_const', const=True)
    parser.addoption('--edge', action='store_const', const=True)

@pytest.fixture(scope="session", params=chrome_list, ids=["chrome"])
def chrome(request):
    if request.config.getoption("--chrome"):
        return request.param


@pytest.fixture(scope="session", params=firefox_list, ids=["chrome"])
def firefox(request):
    if request.config.getoption("--firefox"):
        return request.param


@pytest.fixture(scope="session", params=edge_list, ids=["chrome"])
def edge(request):
    if request.config.getoption("--edge"):
        return request.param

And I have a test case in my test folder like this:

def test_login(setup):
 run = Checker("url", setup) # here setup is the driver that is received from the fixture

How can i make a combined fixture which i can even use in my test cases, so that when i don't input any cli command like : pytest --chrome it runs the setup fixture and when i run a cli command it ignores the setup fixture and runs the specific fixture that i've mentioned.

eg:

pytest --chrome - > test runs with chrome fixture
pytest --chrome --firfox - > test runs with chrome as well as firefox fixture
pytest - > test runs only setup fixture.