pytest内置fixture函数request.cls的使用
- 源码(FixtureRequest类中)
@property def cls(self): """Class (can be None) where the test function was collected.""" if self.scope not in ("class", "function"): raise AttributeError(f"cls not available in {self.scope}-scoped context") clscol = self._pyfuncitem.getparent(_pytest.python.Class) if clscol: return clscol.obj
- 解读+示例
request.cls 是获取测试函数的类名,当测试函数不在类内定义时则返回None,且scope范围应为class或者function,否则抛异常
示例1:返回None,测试函数定义在类外
import pytest
@pytest.fixture(scope="class")
def driver_init(request):
print("*" * 20, request.cls)
def test_cls(driver_init):
print("运行结束")
示例2:返回类,测试函数定义在类内
import pytest
@pytest.fixture(scope="class") def driver_init(request): print("*" * 20, request.cls) @pytest.mark.usefixtures("driver_init") class TestCls(): def test_cls(self): print("运行结束")
- 其他使用
import pytest from selenium import webdriver @pytest.fixture(scope="class") def driver_init(request): web_driver = webdriver.Chrome() request.cls.driver = web_driver yield web_driver.close() @pytest.mark.usefixtures("driver_init") class TestCls(): def test_cls(self): print("运行结束")