1.创建   test_parametrize.py

通过

@pytest.mark.parametrize 方法设置参数

import pytestimport math#pytest参数化
@pytest.mark.parametrize("base,exponent,expected",  # 参数变量名称# 每个元组都是一条测试用例测试数据[(2,2,4),(3,3,9),(1,9,1),(0,9,0)],ids=['case1','case2','case3','case4']  # 默认为None 用来定义测试用例的名称
)
def test_pow(base,exponent,expected):print(base,exponent,expected)assert math.pow(base,exponent)==expected

2.运行结果：pytest -s test_parametrize.py

PS E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example> pytest -v test_parametrize.py
======================================================================== test session starts ========================================================================
platform win32 -- Python 3.10.9, pytest-7.1.2, pluggy-1.0.0 -- D:\software\python3\anconda3\python.exe
cachedir: .pytest_cache
rootdir: E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example
plugins: anyio-3.5.0
collected 0 items                                                                                                                                                    ======================================================================= no tests ran in 0.03s =======================================================================
ERROR: file or directory not found: test_parametrize.pyPS E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example> pytest -s test_parametrize.py
======================================================================== test session starts ========================================================================
platform win32 -- Python 3.10.9, pytest-7.1.2, pluggy-1.0.0
rootdir: E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example
plugins: anyio-3.5.0
collected 0 items                                                                                                                                                    ======================================================================= no tests ran in 0.04s =======================================================================
ERROR: file or directory not found: test_parametrize.pyPS E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example> cd parametrize
PS E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example\parametrize> pytest -s test_parametrize.py
======================================================================== test session starts ========================================================================
platform win32 -- Python 3.10.9, pytest-7.1.2, pluggy-1.0.0
rootdir: E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example\parametrize
plugins: anyio-3.5.0
collected 4 items                                                                                                                                                    test_parametrize.py .F..============================================================================= FAILURES ==============================================================================
__________________________________________________________________________ test_pow[case2] __________________________________________________________________________base = 3, exponent = 3, expected = 9@pytest.mark.parametrize("base,exponent,expected",  # 参数变量名称# 每个元组都是一条测试用例测试数据[(2,2,4),(3,3,9),(1,9,1),(0,9,0)],ids=['case1','case2','case3','case4']  # 默认为None 用来定义测试用例的名称)def test_pow(base,exponent,expected):
>       assert math.pow(base,exponent)==expected
E       assert 27.0 == 9
E        +  where 27.0 = <built-in function pow>(3, 3)
E        +    where <built-in function pow> = math.powtest_parametrize.py:18: AssertionError
====================================================================== short test summary info ======================================================================
FAILED test_parametrize.py::test_pow[case2] - assert 27.0 == 9
==================================================================== 1 failed, 3 passed in 1.66s ====================================================================
PS E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example\parametrize> pytest -s test_parametrize.py
======================================================================== test session starts ========================================================================
platform win32 -- Python 3.10.9, pytest-7.1.2, pluggy-1.0.0
rootdir: E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example\parametrize
plugins: anyio-3.5.0
collected 4 items                                                                                                                                                    test_parametrize.py 2 2 4
.3 3 9
F1 9 1
.0 9 0
.============================================================================= FAILURES ==============================================================================
__________________________________________________________________________ test_pow[case2] __________________________________________________________________________base = 3, exponent = 3, expected = 9@pytest.mark.parametrize("base,exponent,expected",  # 参数变量名称# 每个元组都是一条测试用例测试数据[(2,2,4),(3,3,9),(1,9,1),(0,9,0)],ids=['case1','case2','case3','case4']  # 默认为None 用来定义测试用例的名称)def test_pow(base,exponent,expected):print(base,exponent,expected)
>       assert math.pow(base,exponent)==expected
E       assert 27.0 == 9
E        +  where 27.0 = <built-in function pow>(3, 3)
E        +    where <built-in function pow> = math.powtest_parametrize.py:19: AssertionError
====================================================================== short test summary info ======================================================================
FAILED test_parametrize.py::test_pow[case2] - assert 27.0 == 9
==================================================================== 1 failed, 3 passed in 0.44s ====================================================================
PS E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example\parametrize>

  运行  pytest -v test_parametrize.py

======================================================================== test session starts ========================================================================
platform win32 -- Python 3.10.9, pytest-7.1.2, pluggy-1.0.0 -- D:\software\python3\anconda3\python.exe
cachedir: .pytest_cache
rootdir: E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example\parametrize
plugins: anyio-3.5.0
collected 4 items                                                                                                                                                    test_parametrize.py::test_pow[case1] PASSED                                                                                                                    [ 25%]
test_parametrize.py::test_pow[case2] FAILED                                                                                                                    [ 50%]
test_parametrize.py::test_pow[case3] PASSED                                                                                                                    [ 75%]
test_parametrize.py::test_pow[case4] PASSED                                                                                                                    [100%]============================================================================= FAILURES ==============================================================================
__________________________________________________________________________ test_pow[case2] __________________________________________________________________________base = 3, exponent = 3, expected = 9@pytest.mark.parametrize("base,exponent,expected",  # 参数变量名称# 每个元组都是一条测试用例测试数据[(2,2,4),(3,3,9),(1,9,1),(0,9,0)],ids=['case1','case2','case3','case4']  # 默认为None 用来定义测试用例的名称)def test_pow(base,exponent,expected):print(base,exponent,expected)
>       assert math.pow(base,exponent)==expected
E       assert 27.0 == 9
E        +  where 27.0 = <built-in function pow>(3, 3)
E        +    where <built-in function pow> = math.powtest_parametrize.py:19: AssertionError
----------------------------------------------------------------------- Captured stdout call ------------------------------------------------------------------------
3 3 9
====================================================================== short test summary info ======================================================================
FAILED test_parametrize.py::test_pow[case2] - assert 27.0 == 9
==================================================================== 1 failed, 3 passed in 1.79s ====================================================================
PS E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example\parametrize>

3.运行参数控制

pytest -s test_parametrize.py     其中 -s 用于关闭捕捉 

pytest -v test_parametrize.py   增加测试用例冗长

pytest --help  查看帮助

pytest  -q  test_parametrize.py 减少测试冗长

pytest -x   test_parametrize.py 如果出现一条测试用例失败，就停止

pytest  ./test_dir    运行测试目录 

pytest      指定特定类或是方法

 pytest   ./fixture/test_fixtures_02.py::TestMultiply::test_numbers_5_6

# 功能函数
def multiply(a, b):return a * bclass TestMultiply:# =====fixtures========@classmethoddef setup_class(cls):print("setup_class=========>")@classmethoddef teardown_class(cls):print("teardown_class=========>")def setup_method(self, method):print("setup_method----->>")def teardown_method(self, method):print("teardown_method-->>")def setup(self):print("setup----->")def teardown(self):print("teardown-->")# =====测试用例========def test_numbers_5_6(self):print('test_numbers_5_6')assert multiply(5, 6) == 30def test_strings_b_2(self):print('test_strings_b_2')assert multiply('b', 2) == 'bb'

 pytest   ./fixture/test_fixtures_02.py::TestMultiply::test_numbers_5_6
======================================================================== test session starts ========================================================================
platform win32 -- Python 3.10.9, pytest-7.1.2, pluggy-1.0.0
rootdir: E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example
plugins: anyio-3.5.0
collected 1 item                                                                                                                                                     fixture\test_fixtures_02.py .                                                                                                                                  [100%]

通过 main 方法运行 

import pytestif __name__=='__main__':#pytest.main(['-s','./fixture'])pytest.main(['-v', './fixture'])

============================== 6 passed in 0.06s ==============================
============================= test session starts =============================
platform win32 -- Python 3.10.9, pytest-7.1.2, pluggy-1.0.0 -- D:\software\python3\anconda3\python.exe
cachedir: .pytest_cache
rootdir: E:\data\web测试\Selenium3自动化测试实战——基于Python语言\mycode\pytest_example
plugins: anyio-3.5.0
collecting ... collected 6 itemsfixture/test_fixtures_01.py::test_mult_3_4 PASSED                        [ 16%]
fixture/test_fixtures_01.py::test_mult_a_4 PASSED                        [ 33%]
fixture/test_fixtures_011.py::test_multiply_3_4 PASSED                   [ 50%]
fixture/test_fixtures_011.py::test_multiply_a_3 PASSED                   [ 66%]
fixture/test_fixtures_02.py::TestMultiply::test_numbers_5_6 PASSED       [ 83%]
fixture/test_fixtures_02.py::TestMultiply::test_strings_b_2 PASSED       [100%]============================== 6 passed in 0.06s ==============================