pytest fixture及conftest详解三 (pytest.ini配置文件)

Myth丶恋晨 2024-04-01 12:10 83阅读 0赞

![在这里插入图片描述][10f857c3372c4c72b64cf33997df098a.jpeg_pic_center]

--------------------

#### 文章目录 ####

*  一、pytest.ini介绍
 *  二、自定义mark标签
 *   *  1.案例:只执行div的测试用例
     *  2.注册标记来防止拼写错误
     *   *  案例1:注册标记使用正确
         *  案例2:注册标记使用错误
     *  3.指定pytest忽略某些目录(norecurse)
     *  4.指定测试目录(testpaths)
     *  5.如果我既指定了testpaths和 norecursedirs ，而且两个是一样的，结果会怎样
 *  三.自定义运行时的默认参数
 *   *  案例:
 *  四.格式化日志
 *   *  案例
 *  五.自定义测试文件命名规则
 *   *  测试用例默认命名规则
     *  案例

## 一、pytest.ini介绍 ##

是pytest框架的主配置文件，实际生产中主要用来规范日志的格式或日志文件保存的位置，增加用例标签等等，总之简单易用，属于pytest学习的重要知识点。

特别注意:  
**pytest.ini文件命名不能修改，文件中第一行必须用【pytest】申明这是一个pytest的ini文件**

## 二、自定义mark标签 ##

我门在编写自动化测试用例时，会有各种类型的场景用例，我们又不想一次性运行全部，只想运行其中的几个，这时我们可以借助mark标签来管理测试用例，mark标签是任意取的，但是要避开Python和pytest关键字，运行标签用 - m 来运行，如：pytest -m div testcases/menus/test\_menus1.py::TestMenus

特别注意:  
**多个标签要换行，且不能在顶格写，要有空格**

![在这里插入图片描述][be8dfcb2ed0042d7803cbf99f4b77529.png]

### 1.案例:只执行div的测试用例 ###

# encoding=utf-8
    import pytest
    
    class TestMenus:
    
        @pytest.mark.div
        def test_menu1(self):
            assert 1 == 1
    
        @pytest.mark.div
        @pytest.mark.add
        def test_menu2(self):
            assert 1 == 1
    
        def test_menu3(self):
            assert 2 == 5
    
    
    if __name__ == '__main__':
        pytest.main()

执行命令行:

D:\project_development\api_pytest>pytest -vs -m div testcases/menus/test_menus1.py::TestMenus

执行测试结果

======================================================= test session starts =======================================================
    platform win32 -- Python 3.9.6, pytest-5.2.1, py-1.10.0, pluggy-0.13.1
    rootdir: D:\project_development\api_pytest, inifile: pytest.ini
    plugins: allure-pytest-2.9.43, Faker-14.1.0, testreport-1.1.2
    collected 3 items / 1 deselected / 2 selected                                                                                      
    
    testcases/menus/test_menus1.py::TestMenus::test_menu1 ----这是前置方法----
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu2 PASSED----这是后置方法----
    
    
    
    ================================================= 2 passed, 1 deselected in 0.10s =================================================

### 2.注册标记来防止拼写错误 ###

自定义标记可以简化测试工作，让我们用指定的标记运行某个测试子集。但是，标记很容易拼错，比如把@pytest.mark.smoke拼成@pytest.mark.somke，默认情况下。这不会引起程序错误。pytest会以为这是你创建的另一个标记。为了避免拼写错误。可以在pytest.ini文件里注册标记  
标记完可以通过:pytest --markers 查看  
![在这里插入图片描述][9967b734ae3540f48b1c3fefaa7a0f79.png]

#### 案例1:注册标记使用正确 ####

[pytest]
    ;python_files = check*
    ;python_functions = check*
    ;python_classes = CHECK*
    
    markers =
        smoke: Run the smoke test functions for tasks project
        get: Run the test functions that test tasks.get()
        div
        add
    addopts= -v -s --capture=no

test\_menus.py

# encoding=utf-8
    import pytest
    import logging
    
    class TestMenus:
    
        @pytest.mark.smoke
        def test_menu1(self):
            logging.info('执行测试用例1')
            assert 1 == 1
    
    
        @pytest.mark.smoke
        def test_menu2(self):
            logging.info('执行测试用例2')
            assert 1 == 1
    
        def test_menu3(self):
            logging.info('执行测试用例3')
            assert 2 == 5
    
    
    if __name__ == '__main__':
        pytest.main()

执行命令:pytest -m smoke

collected 3 items / 1 deselected / 2 selected                                                                                      
    
    testcases/menus/test_menus1.py::TestMenus::test_menu1 ----这是前置方法----
    
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 10:41:22 [INFO] 执行测试用例1 (test_menus1.py:9)
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu2
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 10:41:22 [INFO] 执行测试用例2 (test_menus1.py:15)
    PASSED----这是后置方法----
    
    
    ================================================= 2 passed, 1 deselected in 0.13s =================================================

#### 案例2:注册标记使用错误 ####

执行命令:pytest -m smoke1(smoke1没有注册)  
把smoke故意写错了，也没有报错，只是给我们一个警告，只需要我们在ini里注册下就不会有警告了

pytest -m smoke1

D:\project_development\api_pytest>pytest -m smoke1
    ======================================================= test session starts =======================================================
    platform win32 -- Python 3.9.6, pytest-5.2.1, py-1.10.0, pluggy-0.13.1 -- d:\python3.9\python.exe
    cachedir: .pytest_cache
    metadata: {
        'Python': '3.9.6', 'Platform': 'Windows-10-10.0.19044-SP0', 'Packages': {
        'pytest': '5.2.1', 'pluggy': '0.13.1'}, 'Plugins
    ': {'allure-pytest': '2.9.43', 'Faker': '14.1.0', 'html': '3.2.0', 'metadata': '2.0.3', 'testreport': '1.1.2'}, 'JAVA_HOME': 'C:\\Pr
    ogram Files\\Java\\jdk1.8.0_291'}
    rootdir: D:\project_development\api_pytest, inifile: pytest.ini
    plugins: allure-pytest-2.9.43, Faker-14.1.0, html-3.2.0, metadata-2.0.3, testreport-1.1.2
    collected 3 items / 3 deselected                                                                                                   
    
    ====================================================== 3 deselected in 0.06s ======================================================

### 3.指定pytest忽略某些目录(norecurse) ###

pytest执行测试搜索时，会递归遍历所有子目录，包括某些你明知道没必要遍历的目录。遇到这种情况，你可以使用norecurse选项简化pytest的搜索工作。  
![在这里插入图片描述][2539f743bff44d3ba871f5c8011a8376.png]

pytest.ini  
把menus用例目录注销了,不会去执行这个目录下的用例了

[pytest]
    
    norecursedirs = .* venv menus *.egg dist build
    url = https://blog.csdn.net/YZL40514131
    markers =
        smoke: Run the smoke test functions for tasks project
        get: Run the test functions that test tasks.get()
        div
        add
    addopts = -v -s --capture=no
    
    log_cli = true
    log_cli_level = info
    log_cli_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_cli_date_format = %Y-%m-%d %H:%M:%S
    log_file = ./logs/all.log
    log_file_level = info
    log_file_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_file_date_format = %Y-%m-%d %H:%M:%S

执行结果

collected 3 items                                                                                                                  
    
    testcases/works/test_work1.py::TestWork::test_h ----这是前置方法----
    
    读取到配置文件的url地址：https://blog.csdn.net/YZL40514131
    用例：https://blog.csdn.net/YZL40514131
    PASSED
    testcases/works/test_work1.py::TestWork::test_work1 PASSED
    testcases/works/test_work1.py::TestWork::test_work2 PASSED----这是后置方法----
    
    
    ======================================================== 3 passed in 0.14s ========================================================

也可以指定多个目录

norecursedirs = .* venv menus works *.egg dist build

### 4.指定测试目录(testpaths) ###

norecuredirs告诉pytest哪些路径不用访问，而testpaths则指示pytest去哪里访问。**testpaths是一系列相对于根目录的路径，用于限定测试用例的搜索范围。只有在pytest未指定文件目录参数或测试用例标识符时，该选项才有作用**

pytest.ini  
如果我们只想执行testcases/menus下的测试用例，则可以把testcases/menus放到testpaths里

[pytest]
    
    testpaths = testcases/menus
    url = https://blog.csdn.net/YZL40514131
    markers =
        smoke: Run the smoke test functions for tasks project
        get: Run the test functions that test tasks.get()
        div
        add
    addopts = -v -s --capture=no
    
    log_cli = true
    log_cli_level = info
    log_cli_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_cli_date_format = %Y-%m-%d %H:%M:%S
    log_file = ./logs/all.log
    log_file_level = info
    log_file_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_file_date_format = %Y-%m-%d %H:%M:%S

执行命令

collected 3 items                                                                                                                  
    
    testcases/menus/test_menus1.py::TestMenus::test_menu1 ----这是前置方法----
    
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 11:34:00 [INFO] 执行测试用例1 (test_menus1.py:9)
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu2
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 11:34:00 [INFO] 执行测试用例2 (test_menus1.py:15)
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu3
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 11:34:00 [INFO] 执行测试用例3 (test_menus1.py:19)
    PASSED----这是后置方法----
    
    
    ======================================================== 3 passed in 0.09s ========================================================

### 5.如果我既指定了testpaths和 norecursedirs ，而且两个是一样的，结果会怎样 ###

![在这里插入图片描述][9432040c21d54b05ad58075920cba65e.png]  
**从上面两次的运行结果可以看出，如果既指定了testpaths和 norecursedirs ，而且两个是一样的，则是按照testpaths执行的**

collected 3 items                                                                                                                  
    
    testcases/menus/test_menus1.py::TestMenus::test_menu1 ----这是前置方法----
    
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 11:38:28 [INFO] 执行测试用例1 (test_menus1.py:9)
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu2
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 11:38:28 [INFO] 执行测试用例2 (test_menus1.py:15)
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu3
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 11:38:28 [INFO] 执行测试用例3 (test_menus1.py:19)
    PASSED----这是后置方法----
    
    
    ======================================================== 3 passed in 0.09s ========================================================

## 三.自定义运行时的默认参数 ##

pytest有多个经常使用的参数，如 - vs 来打印更详细的信息，但是每次都要手动输入很麻烦，例如上个案例 **`pytest -vs -m div testcases/menus/test_menus1.py::TestMenus`**  
这是需要用到 addopts 配置默认运行参数

特别注意  
**addopts 运行时参数（可添加多个命令行参数，空格分隔，所有参数与命令行一致）**

### 案例: ###

pytest.ini

[pytest]
    markers =
        smoke: Run the smoke test functions for tasks project
        get: Run the test functions that test tasks.get()
        div
        add
    addopts= -v -s
    
    url = https://blog.csdn.net/YZL40514131

test\_menus1.py

命令行执行:**`pytest -m div testcases/menus/test_menus1.py::TestMenus`**

pytest -m div testcases/menus/test_menus1.py::TestMenus

执行结果

collected 3 items / 1 deselected / 2 selected                                                                                      
    
    testcases/menus/test_menus1.py::TestMenus::test_menu1 ----这是前置方法----
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu2 PASSED----这是后置方法----
    
    
    ================================================= 2 passed, 1 deselected in 0.10s =================================================

## 四.格式化日志 ##

### 案例 ###

pytest.ini

[pytest]
    markers =
        smoke: Run the smoke test functions for tasks project
        get: Run the test functions that test tasks.get()
        div
        add
    addopts= -v -s --capture=no
    
    
    log_cli = true
    log_cli_level = info
    log_cli_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_cli_date_format = %Y-%m-%d %H:%M:%S
    log_file = ./logs/all.log
    log_file_level = info
    log_file_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_file_date_format = %Y-%m-%d %H:%M:%S

test\_menus.py

# encoding=utf-8
    import pytest
    import logging
    
    class TestMenus:
    
        @pytest.mark.div
        def test_menu1(self):
            logging.info('执行测试用例1')
            assert 1 == 1
    
        @pytest.mark.div
        @pytest.mark.add
        def test_menu2(self):
            logging.info('执行测试用例2')
            assert 1 == 1
    
        def test_menu3(self):
            logging.info('执行测试用例3')
            assert 2 == 5
    
    
    if __name__ == '__main__':
        pytest.main()

执行命令:pytest testcases/menus/test\_menus1.py::TestMenus

执行结果

testcases/menus/test_menus1.py::TestMenus::test_menu1 ----这是前置方法----
    
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-29 23:37:46 [INFO] 执行测试用例1 (test_menus1.py:9)
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu2
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-29 23:37:46 [INFO] 执行测试用例2 (test_menus1.py:15)
    PASSED
    testcases/menus/test_menus1.py::TestMenus::test_menu3
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-29 23:37:46 [INFO] 执行测试用例3 (test_menus1.py:19)
    FAILED----这是后置方法----
    
    
    ============================================================ FAILURES =============================================================
    ______________________________________________________ TestMenus.test_menu3 _______________________________________________________
    
    self = <testcases.menus.test_menus1.TestMenus object at 0x00000173C6D7A760>
    
        def test_menu3(self):
            logging.info('执行测试用例3')
    >       assert 2 == 5
    E       assert 2 == 5
    E         -2
    E         +5
    
    testcases\menus\test_menus1.py:20: AssertionError
    -------------------------------------------------------- Captured log call --------------------------------------------------------
    INFO     root:test_menus1.py:19 执行测试用例3
    =================================================== 1 failed, 2 passed in 0.17s ===================================================

## 五.自定义测试文件命名规则 ##

### 测试用例默认命名规则 ###

除非pytest命令指定到测试用例文件，否则测试用例文件命名应该以 test\_开头或者以\_test结尾。  
测试函数命名，测试类的方法命名应该以test\_开头。  
测试类命名应当以Test开头。  
tips: 测试类的不应该有构造函数。

> python\_files 自定义测试文件命名规则  
> python\_classes = Test\_\* 自定义测试类命名规则  
> python\_functions= test\_\* check\_\* 自定义测试方法命名规则

![在这里插入图片描述][92a2152d0080465cb8db7e515a46c890.png]

pytest 框架可以通过pytest.ini配置文件自定义命名规则，在某些特定场景下可能会用到。

特别注意:  
想控制多种文件类型，用空格隔开

### 案例 ###

pytest.ini文件

[pytest]
    python_files = check*
    python_functions = check*
    python_classes = CHECK*
    
    markers =
        smoke: Run the smoke test functions for tasks project
        get: Run the test functions that test tasks.get()
        div
        add
    addopts= -v -s --capture=no
    
    
    log_cli = true
    log_cli_level = info
    log_cli_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_cli_date_format = %Y-%m-%d %H:%M:%S
    log_file = ./logs/all.log
    log_file_level = info
    log_file_format = %(asctime)s [%(levelname)s] %(message)s (%(filename)s:%(lineno)s)
    log_file_date_format = %Y-%m-%d %H:%M:%S

check\_menus.py

# encoding=utf-8
    import pytest
    import logging
    
    class CHECKclass:
    
        @pytest.mark.div
        def check_menu1(self):
            logging.info('执行测试用例1')
            assert 1 == 1
    
        @pytest.mark.div
        @pytest.mark.add
        def check_menu2(self):
            logging.info('执行测试用例2')
            assert 1 == 1
    
        def check_menu3(self):
            logging.info('执行测试用例3')
            assert 2 == 5
    
    
    if __name__ == '__main__':
        pytest.main()

执行命令行:pytest

collected 3 items                                                                                                                  
    
    testcases/menus/check_menus.py::CHECKclass::check_menu1 ----这是前置方法----
    
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 00:23:49 [INFO] 执行测试用例1 (check_menus.py:9)
    PASSED
    testcases/menus/check_menus.py::CHECKclass::check_menu2
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 00:23:49 [INFO] 执行测试用例2 (check_menus.py:15)
    PASSED
    testcases/menus/check_menus.py::CHECKclass::check_menu3
    ---------------------------------------------------------- live log call ----------------------------------------------------------
    2022-10-30 00:23:49 [INFO] 执行测试用例3 (check_menus.py:19)
    FAILED----这是后置方法----

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