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  • Pytest之Setup/Teardown

    一、说明:
    setup和teardown主要分为:
    • 函数级 (setup_function、teardown_function), 只对函数用例生效,而且不在类中使用
    • 功能级(setup_method、teardown_method),类中方法级 
    • 类级(setup_class、teardown_class)
    • 模块级 (setup_module、teardown_module)
    二、示例
    1、函数级 (setup_function、teardown_function), 只对函数用例生效,而且不在类中使用
    运行于测试方法的始末,即:运行一次测试函数会运行一次setup和teardown
    代码示例:
    import pytest
     
    def setup_function():
        print("this is setup_function")
     
    def teardown_function():
        print("this is teardown_function")
     
    def test_1():
        print("this is test_1")
        assert 1
    
    def test_2():
        print("this is test_2")
        assert 1
    
    def test_3():
        print("this is test_3")
        assert 1
     
     
    if __name__ == '__main__':
        pytest.main(['-s','test_demo.py'])
     
    执行结果:
    2、功能级(setup_method、teardown_method),类中方法级 , 在每一个方法之前执行一次,在每一个方法之后执行一次
    import pytest
     
    class Test_123:
        def setup_method(self):
            print("this is setup")
     
        def teardown_method(self):
            print("this is teardown")
     
        def test_1(self):
            print("this is test_1")
            assert 1
    
        def test_2(self):
            print("this is test_2")
            assert 1
    
        def test_3(self):
            print("this is test_3")
            assert 1
     
     
    if __name__ == '__main__':
        pytest.main("['test_123.py']")
     
    执行结果:
     
    3、类级别
    运行于测试类的始末,在一个测试类内只运行一次setup_class和teardown_class, 类执行之前运行一次,类执行之后运行一次,不关心测试类内有多少个测试函数
    代码示例:
    import pytest
     
    class Test_123:
        def setup_class(self):
            print("this is setup")
     
        def teardown_class(self):
            print("this is teardown")
     
        def test_1(self):
            print("this is test_1")
            assert 1
        def test_2(self):
            print("this is test_2")
            assert 1
        def test_3(self):
            print("this is test_3")
            assert 1
     
    if __name__ == '__main__':
        pytest.main("['test_123.py']")
     
    运行结果如下:
     
    4、模块级 setup_module、teardown_module是 全局的,在模块执行前运行一遍,在模块执行后运行一遍
    代码示例:
    import pytest
     
    def setup_module():
        print("this is setup_module")
    
    def teardown_module():
        print("this is teardown_module")
     
    def setup_function():
        print("this is setup_function")
     
    def teardown_function():
        print("this is teardown_function")
     
    def test_1():
        print("this is test_1")
        assert 1
    def test_2():
        print("this is test_2")
        assert 1
    def test_3():
        print("this is test_3")
        assert 1
     
    if __name__ == '__main__':
        pytest.main(['-s','test_demo.py'])
    
    执行结果:
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  • 原文地址:https://www.cnblogs.com/daydayup-lin/p/13487762.html
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