Py.test fixture：在示波器夹具中使用功能夹具

2 回答

• 1

  您需要使用变通方法 . 该操作需要在 function 范围内完成，并且 autouse 设置为 True .

  您需要在基于 session 的fixture中初始化变量，这将检查 settings 是否已完成 . 如果没有完成，那么你将进行设置并将标志更改为 False

  下面是一个工作示例

  import pytest
  
  
  @pytest.fixture(scope="session", autouse=True)
  def settings_page():
      config = {"config_done": False}
      return config
  
  
  @pytest.fixture()
  def init(request):
      print("init called")
      return "init"
  
  
  @pytest.fixture()
  def driver():
      print("driver called")
  
      return "driver"
  
  
  @pytest.fixture(autouse=True)
  def init_settings(settings_page, driver):
      if not settings_page["config_done"]:
          print("Settings being done only the first time")
          settings_page["config_done"] = True
  
  
  @pytest.fixture()
  def login():
      print("login called")
      return "login"
  
  
  @pytest.fixture()
  def logged_in_driver(init, driver, login):
      print("logged in driver is ready")
      return (init, driver, login)
  
  
  @pytest.fixture()
  def non_logged_in_driver(init, driver):
      print("non logged in driver is ready")
      return (init, driver)
  
  
  def test_1(logged_in_driver):
      print("test_1")
  
  
  def test_2(non_logged_in_driver):
      print("test_2")
  

  输出如下

  test.py driver called
  Settings being done only the first time
  init called
  login called
  logged in driver is ready
  .test_1
  driver called
  init called
  non logged in driver is ready
  .test_2
  

  所以你可以看到设置只发生一次

  回复于 2024-04-20T09:30:19+08:00
• 0

  此解决方法尝试在不创建会话级夹具的情况下实现相同的结果 . 它可以满足您对上面评论中提到的 called only once before first test case 设置的需求 .

  创建 conftest.py 并放置以下内容：

  import pytest
  
  
  def pytest_sessionstart(session):
      print("Initialising Session Level Settings")
      login = "A specialized login"
      settings(login).create_settings()
  
  
  @pytest.fixture()
  def get_driver():
      print("Get Driver")
  
  
  @pytest.fixture()
  def login(get_driver):
      print("Login")
  
  
  @pytest.fixture()
  def settings(login):
      print("Settings")
  
      class Setter:
          def create_settings(self):
              print("[Success] Settings created!")
      return Setter()
  

  然后，您可以在测试中使用它，如下所示：

  def test_one(settings):
      print("Test one...")
  
  
  def test_two(settings):
      print("Test two...")
  

  执行测试应该产生接近你想要的效果（基于我到目前为止从你给出的信息中推断出的结果） .

  (py362) D:\repo\git\ens_qa>py.test -sv stackoverflow\ScopeWorkaroundTests.py
  Initialising Session Level Settings
  Settings
  [Success] Settings created!
  ============================= test session starts =============================
  platform win32 -- Python 3.6.2, pytest-3.2.1, py-1.4.34, pluggy-0.4.0 -- d:\virtualenv\py362\scripts\python.exe
  cachedir: .cache
  rootdir: D:\repo\git\ens_qa, inifile:
  collected 2 items
  
  stackoverflow/ScopeWorkaroundTests.py::test_one Get Driver
  Login
  Settings
  Test one...
  PASSED
  stackoverflow/ScopeWorkaroundTests.py::test_two Get Driver
  Login
  Settings
  Test two...
  PASSED
  
  ========================== 2 passed in 0.05 seconds ===========================
  
  (py362) D:\repo\git\ens_qa>
  

  回复于 2024-04-20T09:30:19+08:00