Pytest 断言

pytest 断言

• 断言：一个标准的用例都包含了断言，编写pytest自动化脚本的时候，也需要设置断言
• assert使用
  • 常用分三种 1：比较大小与是否相等 2：包含或不包含  3：验证boolean
• 例子
  • 比较大小

  • #coding: UTF-8
    import pytest
    # 比较大小与是否相等
    def test_assert_equal
        assert 2+2==2*2 
    class Test_Class():
        def test_assert_equal(self):
            assert 4==3
        def test_assert_noequal(self):
            assert 4!=3
        def test_assert_greater(self):
            assert 4>=3
    if __name__ == '__main__':
        pytest.main("-v -s assert_001_equal_test.py")
  • 包含

    #coding: UTF-8
    import pytest
    # 测试包含或不包含  
    def test_in():
        a = "Hello,Jerry"
        b = "Hello"
        assert b in a 
    
    def test_not_in():
        a = "Hello,Jerry"
        b = "Jerry"
        assert b not in a
         
    class Test_Class():
        def test_in(self):
            a = "Hello,Jerry"
            b = "Hello"
            assert b in a 
            
    if __name__ == '__main__':
        pytest.main("-v -s assert_002_contain_test.py")

  • 验证boolean

    #coding: UTF-8
    import pytest
    def check(flag):
        if flag!=0:
            return True
        else:
            return False
    def test_boolean():
        assert check(1)
    class Test_Boolean_Assert():
        def test_boolean(self):
            assert check(0)
    
    if __name__ == '__main__':
        pytest.main("-v -s assert_003_boolean_test.py")

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