前言
当用例a失败的时候，如果用例b和用例c都是依赖于第一个用例的结果，那可以直接跳过用例b和c的测试，直接给他标记失败xfail
用到的场景，登录是第一个用例，登录之后的操作b是第二个用例，登录之后操作c是第三个用例，很明显三个用例都会走到登录。
如果登录都失败了，那后面2个用例就没测试必要了，直接跳过，并且标记为失败用例，这样可以节省用例时间。
用例设计
1.pytest里面用xfail标记用例为失败的用例，可以直接跳过。实现基本思路
- 把登录写为前置操作
- 对登录的账户和密码参数化，参数用canshu = [{"user":"amdin", "psw":"111"}]表示
- 多个用例放到一个Test_xx的class里
- test_01，test_02， test_03全部调用fixture里面的login功能
- test_01测试登录用例
- test_02和test_03执行前用if判断登录的结果，登录失败就执行，pytest.xfail("登录不成功, 标记为xfail")
# content of test_05.py # coding:utf-8 import pytest canshu = [{"user":"amdin", "psw":"111"}] @pytest.fixture(scope="module") def login(request): user = request.param["user"] psw = request.param["psw"] print("正在操作登录，账号：%s, 密码：%s" % (user, psw)) if psw: return True else: return False @pytest.mark.parametrize("login", canshu, indirect=True) class Test_xx(): def test_01(self, login): '''用例1登录''' result = login print("用例1：%s" % result) assert result == True def test_02(self, login): result = login print("用例3,登录结果：%s" % result) if not result: pytest.xfail("登录不成功, 标记为xfail") assert 1 == 1 def test_03(self, login): result = login print("用例3,登录结果：%s" %result) if not result: pytest.xfail("登录不成功, 标记为xfail") assert 1 == 1 if __name__ == "__main__": pytest.main(["-s", "test_05.py"])
上面传的登录参数是登录成功的案例，三个用例全部通过
============================= test session starts ============================= platform win32 -- Python 3.6.0, pytest-3.6.3, py-1.5.4, pluggy-0.6.0 rootdir: D:\, inifile: plugins: metadata-1.7.0, html-1.19.0, allure-adaptor-1.7.10 collected 3 items ..\..\..\..\..\..\YOYO\peizhi\test_05.py 正在操作登录，账号：amdin, 密码：111 用例1：True .用例3,登录结果：True .用例3,登录结果：True . ========================== 3 passed in 0.02 seconds ===========================
标记为xfail
1.再看看登录失败情况的用例,修改登录的参数
# content of test_05.py # coding:utf-8 import pytest canshu = [{"user":"amdin", "psw":""}] @pytest.fixture(scope="module") def login(request): user = request.param["user"] psw = request.param["psw"] print("正在操作登录，账号：%s, 密码：%s" % (user, psw)) if psw: return True else: return False @pytest.mark.parametrize("login", canshu, indirect=True) class Test_xx(): def test_01(self, login): '''用例1登录''' result = login print("用例1：%s" % result) assert result == True def test_02(self, login): result = login print("用例3,登录结果：%s" % result) if not result: pytest.xfail("登录不成功, 标记为xfail") assert 1 == 1 def test_03(self, login): result = login print("用例3,登录结果：%s" %result) if not result: pytest.xfail("登录不成功, 标记为xfail") assert 1 == 1 if __name__ == "__main__": pytest.main(["-s", "test_05.py"])
运行结果：
============================= test session starts ============================= platform win32 -- Python 3.6.0, pytest-3.6.3, py-1.5.4, pluggy-0.6.0 rootdir: D:\, inifile: plugins: metadata-1.7.0, html-1.19.0, allure-adaptor-1.7.10 collected 3 items ..\..\..\..\..\..\YOYO\peizhi\test_05.py 正在操作登录，账号：amdin, 密码： 用例1：False F self = <YOYO.peizhi.test_05.Test_xx object at 0x00000000045ACF98>, login = False def test_01(self, login): '''用例1登录''' result = login print("用例1：%s" % result) > assert result == True E assert False == True D:\YOYO\peizhi\test_05.py:24: AssertionError 用例3,登录结果：False x Test ignored.用例3,登录结果：False x Test ignored. ================================== FAILURES =================================== ___________________________ Test_xx.test_01[login0] ___________________________ self = <YOYO.peizhi.test_05.Test_xx object at 0x00000000045ACF98>, login = False def test_01(self, login): '''用例1登录''' result = login print("用例1：%s" % result) > assert result == True E assert False == True D:\YOYO\peizhi\test_05.py:24: AssertionError ===================== 1 failed, 2 xfailed in 0.06 seconds =====================
从结果可以看出用例1失败了，用例2和3没执行，直接标记为xfail了
