python 在pytest fixture中即时构建子类

Posted 2021-05-09

def BaseRobot(object):
    def __init__(self):
        assert self.owner

@pytest.fixture
def robot():
    return type('TestRobot', (BaseRobot,), dict(owner='antonio'))()
  
# instead of
def TestRobot(BaseRobot):
    owner = 'antonio'

@pytest.fixture
def robot():
    return TestRobot()