@pytest.fixture(params=['downlink->uplink', 'uplink->downlink'])
def direction(self, request):
    'Parametrize test based on direction of traffic.'
    return request.param
Parametrize test based on direction of traffic.
@pytest.fixture(params=['downlink->uplink', 'uplink->downlink'])
def direction(self, request):
    
    return request.param