Pytest 斷言

pytest 斷言

• 斷言：一個標准的用例都包含了斷言，編寫pytest自動化腳本的時候，也需要設置斷言
• assert使用
  • 常用分三種 1：比較大小與是否相等 2：包含或不包含  3：驗證boolean
• 例子
  • 比較大小

  • #coding: UTF-8
    import pytest
    # 比較大小與是否相等
    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
    # 測試包含或不包含  
    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")

     

  • 驗證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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