1.在pycharm里面写pytest用例，先导入pytest

import pytest

class TestClass:
        def test_one(self):
            x = "this"
            assert 'h' in x

        def test_two(self):
            x = "hello"
            assert hasattr(x, 'check')

        def test_three(self):
            a = "hello"
            b = "hello world"
            assert a in b

if __name__ == "__main__":
    pytest.main('-q test_class.py')

运行结果

.F.                                                                      [100%]
================================== FAILURES ===================================
_____________________________ TestClass.test_two ______________________________

self = <YOYO.test_class.TestClass object at 0x00000000039F9080>

    def test_two(self):
        x = "hello"
>       assert hasattr(x, 'check')
E       AssertionError: assert False
E        +  where False = hasattr('hello', 'check')

test_class.py:11: AssertionError
============================== warnings summary ===============================
<undetermined location>
  passing a string to pytest.main() is deprecated, pass a list of arguments instead.

-- Docs: http://doc.pytest.org/en/latest/warnings.html
1 failed, 2 passed, 1 warnings in 0.06 seconds

运行结果“.F. ” 点是代表测试通过，F是Fail的意思，1 warnings是用于pytest.main('-q test_class.py')里面参数需要传list，多个参数放list就不会有警告了

pytest.main(['-q', 'test_class.py'])

pycharm设置pytest

1.新建一个工程后，左上角file->Setting->Tools->Python Integrated Tools->项目名称->Default test runner->选择py.test

 改完之后，再重新建个脚本（注意是先改项目运行方式，再写代码才能出来），接下来右键运行就能出来pytest运行了

pytest是可以兼容unittest脚本的，之前写的unittest用例也能用pytest框架去运行