【Pytest】fixture使用request传参，结合parametrize

Myth丶恋晨 2023-05-21 07:20 8阅读 0赞

## 传一组参数 ##

@File    : test_fixture_parametrize.py
    @Author  : 灵枢
    @Time    : 2020/4/8 4:51 PM
    @Desc    :  
    """
    import pytest
    
    
    test_account = ["user1", "user2"]
    
    
    @pytest.fixture(scope="module")
    def login(request):
        user = request.param
        print("登录账户： %s" %user)
        return user
    
    
    @pytest.mark.parametrize("login", test_account, indirect=True) 
    def test_login(login):
        user_name = login
        print("login的返回值是：%s" % user_name)
        assert 1 == 1
    
    
    if __name__ == '__main__':
        pytest.main(["-s", "test_fixture_parametrize.py"])

注意：

*  indirect=True是为了把login当成一个函数去执行，而不是一个参数。
 *  fixture是可以有返回值的，如果没return，默认返回None。
 *  如果用例要调用fixture的返回值，直接把fixture的函数名称当成变量名称就可以了。

运行结果如下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhbGVuMjAxNg_size_16_color_FFFFFF_t_70]

## 传两组参数 ##

# encoding: utf-8 
    """ @File : test_fixture_parametrize2.py @Author : 灵枢 @Time : 2020/4/8 4:51 PM @Desc : """
    import pytest
    
    
    test_account = [{ "username": "user1", "password": "111111"},
                      { "username": "user2", "password": "222222"}]
    
    
    @pytest.fixture(scope="module")
    def login(request):
        username = request.param["username"]
        password = request.param["password"]
        print("登录账户名： %s" % username)
        print("登录密码： %s" % password)
        return username+":"+password
    
    
    @pytest.mark.parametrize("login", test_account, indirect=True)
    def test_login(login):
        '''登录用例'''
        account = login
        print("登录账户为：%s" % account)
        assert 1 == 1
    
    
    if __name__ == '__main__':
        pytest.main(["-s", "test_fixture_parametrize2.py"])

运行结果为：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhbGVuMjAxNg_size_16_color_FFFFFF_t_70 1]

## 多个fixture和多个parametrize ##

2个fixture和2个parametrize叠加时，用例组合是2个参数个数相乘

# encoding: utf-8 
    """ @File : test_fixture_parametrize3.py @Author : 灵枢 @Time : 2020/4/8 4:51 PM @Desc : 2个fixture和2个parametrize叠加时，用例组合是2个参数个数相乘 """
    import pytest
    
    
    test_username = ["user1", "user2"]
    test_password = ["111111", "222222"]
    
    
    @pytest.fixture(scope="module")
    def test_user(request):
        username = request.param
        print("登录用户名： %s" % username)
        return username
    
    
    @pytest.fixture(scope="module")
    def test_psw(request):
        password = request.param
        print("登录密码：%s" % password)
        return password
    
    
    @pytest.mark.parametrize("test_user", test_username, indirect=True)
    @pytest.mark.parametrize("test_psw", test_password, indirect=True)
    def test_login(test_user, test_psw):
        '''登录账户'''
        username = test_user
        password = test_psw
        print("登录账户为：%s ： %s" % (username, password))
        assert 1 == 1
    
    
    if __name__ == '__main__':
        pytest.main(["-s", "test_fixture_parametrize3.py"])

运行结果如下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhbGVuMjAxNg_size_16_color_FFFFFF_t_70 2]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhbGVuMjAxNg_size_16_color_FFFFFF_t_70]: /images/20230521/6e0f830a197c4e55842f0ac932aca407.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhbGVuMjAxNg_size_16_color_FFFFFF_t_70 1]: /images/20230521/e533ba827b7c4372a594ac6624b7c1f3.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2dhbGVuMjAxNg_size_16_color_FFFFFF_t_70 2]: /images/20230521/1518e545ab264734a2991f4b1780edc8.png