Python Falcon，wsgiref：单元测试用例

我有以下代码：

master.py    

def create():
    master = falcon.API(middleware=Auth())
    msg = Message()
    master.add_route('/message', msg)


master = create()

if __name__ == '__main__':
    httpd = simple_server.make_server("127.0.0.1", 8989, master)
    process = Thread(target=httpd.serve_forever, name="master_process")
    process.start()

    #Some logic happens here
    s_process = Thread(target=httpd.shutdown(), name="shut_process")
    s_process.start()
    s.join()

我尝试为以下项目创建以下测试用例：

from falcon import testing
from master import create

@pytest.fixture(scope='module')
def client():
   return testing.TestClient(create())

def test_post_message(client):
   result = client.simulate_post('/message', headers={'token': "ubxuybcwe"}, body='{"message": "I'm here!"}') --> This line throws the error
   assert result.status_code == 200

我尝试运行上述操作，但出现以下错误：

TypeError: 'NoneType' object is not callable

---

实际上，我不知道应该如何编写这个测试用例

根据@hoefling所说的，下面的人修复了它：

master.py    

def create():
     master = falcon.API(middleware=Auth())
     msg = Message()
     master.add_route('/message', msg)
     return master


master = create()


if __name__ == '__main__':
    httpd = simple_server.make_server("127.0.0.1", 8989, master)
    process = Thread(target=httpd.serve_forever, name="master_process")
    process.start()

    #Some logic happens here
    s_process = Thread(target=httpd.shutdown(), name="shut_process")
    s_process.start()
    s.join()

然后测试用例工作：

from falcon import testing
from master import create

@pytest.fixture(scope='module')
def client():
    return testing.TestClient(create())

def test_post_message(client):
    result = client.simulate_post('/message', headers={'token': "ubxuybcwe"}, 
    body='{"message": "I'm here!"}') 
    assert result.status_code == 200

---

非常感谢@hoefling

这是因为在

create（）

中没有返回任何内容。添加

returnmaster

应该可以修复它。谢谢！！这样愚蠢的错误。让我输入正确的代码。