使用pytest-xdist并发执行测试
pytest-xdist：Run Tests in Parallel
[https://pypi.python.org/pypi/pytest-xdist]
在自动化测试中有些资源只能同时被一个测试用例访问，如果不需要同时使用同一个资源，那么测试用例便可以并行执行
执行命令pip install pytest-xdist安装插件
E:\Programs\Python\Python_Pytest\TestScripts>pip install pytest-xdist
Collecting pytest-xdist
Downloading https://files.pythonhosted.org/packages/9f/cc/371b2e6dfbf4e8df07b04e310dd6ea0b3f367e257d1e6cb516b25bc4af1b/pytest_xdist-1.29.0-py2.py3-none-any.whl
Collecting pytest-forked (from pytest-xdist)
Downloading https://files.pythonhosted.org/packages/3f/55/ef92c340e723495dbee91d749903d2b7950b49c501943296257246d7d880/pytest_forked-1.0.2-py2.py3-none-any.whl
Requirement already satisfied: six in c:\python37\lib\site-packages (from pytest-xdist)(1.12.0)
Requirement already satisfied: pytest>=4.4.0 in c:\python37\lib\site-packages (from pytest-xdist)(4.5.0)
Collecting execnet>=1.1(from pytest-xdist)
Downloading https://files.pythonhosted.org/packages/77/1a/f69e1f73bc36f55d3273afd1c52936def71ac67d9c5215be3a4ca3a45577/execnet-1.6.0-py2.py3-none-any.whl
Requirement already satisfied: setuptools in c:\users\davieyang\appdata\roaming\python\python37\site-packages (from pytest>=4.4.0->pytest-xdist)(41.0.1)
Requirement already satisfied: py>=1.5.0 in c:\python37\lib\site-packages (from pytest>=4.4.0->pytest-xdist)(1.8.0)
Requirement already satisfied: colorama; sys_platform =="win32"in c:\python37\lib\site-packages (from pytest>=4.4.0->pytest-xdist)(0.4.1)
Requirement already satisfied: attrs>=17.4.0 in c:\python37\lib\site-packages (from pytest>=4.4.0->pytest-xdist)(19.1.0)
Requirement already satisfied: pluggy!=0.10,<1.0,>=0.9in c:\python37\lib\site-packages (from pytest>=4.4.0->pytest-xdist)(0.11.0)
Requirement already satisfied: atomicwrites>=1.0in c:\python37\lib\site-packages (from pytest>=4.4.0->pytest-xdist)(1.3.0)
Requirement already satisfied: wcwidth in c:\python37\lib\site-packages (from pytest>=4.4.0->pytest-xdist)(0.1.7)
Requirement already satisfied: more-itertools>=4.0.0; python_version >"2.7"in c:\python37\lib\site-packages (from pytest>=4.4.0->pytest-xdist)(7.0.0)
Collecting apipkg>=1.4(from execnet>=1.1->pytest-xdist)
Downloading https://files.pythonhosted.org/packages/67/08/4815a09603fc800209431bec5b8bd2acf2f95abdfb558a44a42507fb94da/apipkg-1.5-py2.py3-none-any.whl
Installing collected packages: pytest-forked, apipkg, execnet, pytest-xdist
Successfully installed apipkg-1.5 execnet-1.6.0 pytest-forked-1.0.2 pytest-xdist-1.29.0
使用pytest-xdist执行测试
E:\Programs\Python\Python_Pytest\TestScripts>pytest -n auto
================================test session starts ================================================
platform win32 -- Python 3.7.3, pytest-4.5.0, py-1.8.0, pluggy-0.11.0
rootdir: E:\Programs\Python\Python_Pytest\TestScripts
plugins: xdist-1.29.0, repeat-0.8.0, forked-1.0.2, allure-pytest-2.6.3
gw0 [17] / gw1 [17] / gw2 [17] / gw3 [17]...........FF..F. [100%]=========================== FAILURES ================================================
________________________________________ test_true ____________________________________________
[gw2] win32 -- Python 3.7.3 c:\python37\python.exe
def test_true():
> assert not is_prime(7)
E assert not True
E + where True = is_prime(7)
test_asserts.py:65: AssertionError
__________________________________________ test_add4 ___________________________________________
[gw3] win32 -- Python 3.7.3 c:\python37\python.exe
def test_add4():
> assert add(17,22)>=50
E assert 39>=50
E + where 39= add(17, 22)
test_asserts.py:34: AssertionError
______________________________ test_not_equal _____________________________________________
[gw1] win32 -- Python 3.7.3 c:\python37\python.exe
def test_not_equal():
> assert (1, 2, 3)==(3, 2, 1)
E assert (1, 2, 3)==(3, 2, 1)
E At index 0 diff: 1!=3
E Use -v to get the full diff
test_one.py:9: AssertionError
==============================3 failed, 14 passed, 4 warnings in2.20 seconds ===============================
参数说明
-n auto 自动侦测系统里的CPU数目
-n numprocesses 指定运行测试的处理器进程数
使用pytest-repeat重复执行用例
pytest-repeat：Run Tests More Than Once
运行命令pip install pytest-repeat[https://pypi.python.org/pypi/pytest-repeat]
E:\Programs\Python\Python_Pytest\TestScripts>pip install pytest-repeat
Collecting pytest-repeat
Downloading https://files.pythonhosted.org/packages/2e/de/c1d69002db74a99b3df0463e95066c03d82d9d2a53be738c140207134e0f/pytest_repeat-0.8.0-py2.py3-none-any.whl
Requirement already satisfied: pytest>=3.6in c:\python37\lib\site-packages (from pytest-repeat)(4.5.0)
Requirement already satisfied: attrs>=17.4.0in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(19.1.0)
Requirement already satisfied: pluggy!=0.10,<1.0,>=0.9in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(0.11.0)
Requirement already satisfied: wcwidth in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(0.1.7)
Requirement already satisfied: more-itertools>=4.0.0; python_version >"2.7"in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(7.0.0)
Requirement already satisfied: py>=1.5.0in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(1.8.0)
Requirement already satisfied: colorama; sys_platform =="win32"in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(0.4.1)
Requirement already satisfied: setuptools in c:\users\davieyang\appdata\roaming\python\python37\site-packages (from pytest>=3.6->pytest-repeat)(41.0.1)
Requirement already satisfied: six>=1.10.0in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(1.12.0)
Requirement already satisfied: atomicwrites>=1.0in c:\python37\lib\site-packages (from pytest>=3.6->pytest-repeat)(1.3.0)
Installing collected packages: pytest-repeat
Successfully installed pytest-repeat-0.8.0
执行测试，运行命令
pytest --count=2 -v
E:\Programs\Python\Python_Pytest\TestScripts>pytest --count=2-v
======================== test session starts==============================================
platform win32 -- Python 3.7.3, pytest-4.5.0, py-1.8.0, pluggy-0.11.0-- c:\python37\python.exe
cachedir:.pytest_cache
rootdir: E:\Programs\Python\Python_Pytest\TestScripts
plugins: repeat-0.8.0, allure-pytest-2.6.3
collected 34 items
test_asserts.py::test_add[1-2] PASSED [2%]
test_asserts.py::test_add[2-2] PASSED [5%]
test_asserts.py::test_add2[1-2] PASSED [8%]
test_asserts.py::test_add2[2-2] PASSED [11%]
test_asserts.py::test_add3[1-2] PASSED [14%]
test_asserts.py::test_add3[2-2] PASSED [17%]
test_asserts.py::test_add4[1-2] FAILED [20%]
test_asserts.py::test_add4[2-2] FAILED [23%]
test_asserts.py::test_in[1-2] PASSED [26%]
test_asserts.py::test_in[2-2] PASSED [29%]
test_asserts.py::test_not_in[1-2] PASSED [32%]
test_asserts.py::test_not_in[2-2] PASSED [35%]
test_asserts.py::test_true[1-2] FAILED [38%]
test_asserts.py::test_true[2-2] FAILED [41%]
test_fixture1.py::test_numbers_3_4[1-2] PASSED [44%]
test_fixture1.py::test_numbers_3_4[2-2] PASSED [47%]
test_fixture1.py::test_strings_a_3[1-2] PASSED [50%]
test_fixture1.py::test_strings_a_3[2-2] PASSED [52%]
test_fixture2.py::TestUM::test_numbers_5_6[1-2] PASSED [55%]
test_fixture2.py::TestUM::test_numbers_5_6[2-2] PASSED [58%]
test_fixture2.py::TestUM::test_strings_b_2[1-2] PASSED [61%]
test_fixture2.py::TestUM::test_strings_b_2[2-2] PASSED [64%]
test_one.py::test_equal[1-2] PASSED [67%]
test_one.py::test_equal[2-2] PASSED [70%]
test_one.py::test_not_equal[1-2] FAILED [73%]
test_one.py::test_not_equal[2-2] FAILED [76%]
test_two.py::test_default[1-2] PASSED [79%]
test_two.py::test_default[2-2] PASSED [82%]
test_two.py::test_member_access[1-2] PASSED [85%]
test_two.py::test_member_access[2-2] PASSED [88%]
test_two.py::test_asdict[1-2] PASSED [91%]
test_two.py::test_asdict[2-2] PASSED [94%]
test_two.py::test_replace[1-2] PASSED [97%]
test_two.py::test_replace[2-2] PASSED [100%]============================================ FAILURES ====================================
________________________________ test_add4[1-2] _______________________________________
deftest_add4():>assert add(17,22)>=50
E assert39>=50
E + where 39= add(17,22)
test_asserts.py:34: AssertionError
_________________________ test_add4[2-2] ______________________________________________
deftest_add4():>assert add(17,22)>=50
E assert39>=50
E + where 39= add(17,22)
test_asserts.py:34: AssertionError
________________________ test_true[1-2] __________________________________________
deftest_true():>assertnot is_prime(7)
E assertnotTrue
E + where True= is_prime(7)
test_asserts.py:65: AssertionError
____________________________ test_true[2-2] ______________________________________________
deftest_true():>assertnot is_prime(7)
E assertnotTrue
E + where True= is_prime(7)
test_asserts.py:65: AssertionError
__________________________ test_not_equal[1-2] ____________________________________________
deftest_not_equal():>assert(1,2,3)==(3,2,1)
E assert(1,2,3)==(3,2,1)
E At index 0 diff:1!=3
E Full diff:
E -(1,2,3)
E ? ^^
E +(3,2,1)
E ? ^^
test_one.py:9: AssertionError
_________________________________ test_not_equal[2-2] ____________________________________
deftest_not_equal():>assert(1,2,3)==(3,2,1)
E assert(1,2,3)==(3,2,1)
E At index 0 diff:1!=3
E Full diff:
E -(1,2,3)
E ? ^^
E +(3,2,1)
E ? ^^
test_one.py:9: AssertionError
===================6 failed,28 passed,1 warnings in0.77 seconds =======================
可与重复一个测试子集，后者某一个测试，甚至可以让他在晚上重复执行N次，同时可以让他遇到错误就停止
使用pytest-instafail查看详细堆栈信息
当测试执行遇到失败或错误时能及时看到详细的堆栈信息
pytest-instafail：See Details of Failures and Errors
[https://pypi.python.org/pypi/pytest-instafail]
执行命令pip install pytest-instafail安装插件
E:\Programs\Python\Python_Pytest\TestScripts>pip install pytest-instafail
Collecting pytest-instafail
Downloading https://files.pythonhosted.org/packages/fa/16/473621ad68cc2a1cb2888478e66db5080a06adf695470c8dd4ec669c25d5/pytest-instafail-0.4.1.tar.gz
Requirement already satisfied: pytest>=2.9in c:\python37\lib\site-packages (from pytest-instafail)(4.5.0)
Requirement already satisfied: attrs>=17.4.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(19.1.0)
Requirement already satisfied: more-itertools>=4.0.0; python_version >"2.7"in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(7.0.0)
Requirement already satisfied: six>=1.10.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(1.12.0)
Requirement already satisfied: atomicwrites>=1.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(1.3.0)
Requirement already satisfied: setuptools in c:\users\davieyang\appdata\roaming\python\python37\site-packages (from pytest>=2.9->pytest-instafail)(41.0.1)
Requirement already satisfied: pluggy!=0.10,<1.0,>=0.9in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(0.11.0)
Requirement already satisfied: colorama; sys_platform =="win32"in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(0.4.1)
Requirement already satisfied: wcwidth in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(0.1.7)
Requirement already satisfied: py>=1.5.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-instafail)(1.8.0)
Building wheels for collected packages: pytest-instafail
Building wheel for pytest-instafail (setup.py)... done
Stored in directory: C:\Users\davieyang\AppData\Local\pip\Cache\wheels\16\cb\de\3a1d2f5c992fedf9a86b8eead949a606a6c953228ac1fe0655
Successfully built pytest-instafail
Installing collected packages: pytest-instafail
Successfully installed pytest-instafail-0.4.1
通常情况下，pytest执行完毕后，会显示错误和失败用例的堆栈信息，如果测试用例比较多，运行时间太长，很可能我们希望不是到最才看到堆栈回溯信息，使用此插件便可以测试执行失败立马显示异常信息
执行测试
E:\Programs\Python\Python_Pytest\TestScripts>pytest --tb=line --instafail
========================= test session starts ========================================
platform win32 -- Python 3.7.3, pytest-4.5.0, py-1.8.0, pluggy-0.11.0
rootdir: E:\Programs\Python\Python_Pytest\TestScripts
plugins: xdist-1.29.0, timeout-1.3.3, repeat-0.8.0, instafail-0.4.1, forked-1.0.2, allure-pytest-2.6.3
collected 17 items
test_asserts.py ...F
E:\Programs\Python\Python_Pytest\TestScripts\test_asserts.py:34:assert39>=50
test_asserts.py ..F
E:\Programs\Python\Python_Pytest\TestScripts\test_asserts.py:65:assertnotTrue
test_fixture1.py ..[52%]
test_fixture2.py ..[64%]
test_one.py .F
E:\Programs\Python\Python_Pytest\TestScripts\test_one.py:9:assert(1,2,3)==(3,2,1)
test_two.py ....[100%]===================3 failed,14 passed,1 warnings in0.32 seconds =======================
使用pytest-timeout设置执行测试的时限
pytest-timeout：Put Time Limits on Your Tests
[https://pypi.python.org/pypi/pytest-time]
运行命令
pip install pytest-timeout
，安装插件
E:\Programs\Python\Python_Pytest\TestScripts>pip install pytest-timeout
Collecting pytest-timeout
Downloading https://files.pythonhosted.org/packages/58/92/f60ea2e27074d6f97c8aaf21e34d1f838eb623e4b8070680846c65318a10/pytest_timeout-1.3.3-py2.py3-none-any.whl
Requirement already satisfied: pytest>=3.6.0in c:\python37\lib\site-packages (from pytest-timeout)(4.5.0)
Requirement already satisfied: attrs>=17.4.0in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(19.1.0)
Requirement already satisfied: atomicwrites>=1.0in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(1.3.0)
Requirement already satisfied: six>=1.10.0in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(1.12.0)
Requirement already satisfied: py>=1.5.0in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(1.8.0)
Requirement already satisfied: more-itertools>=4.0.0; python_version >"2.7"in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(7.0.0)
Requirement already satisfied: colorama; sys_platform =="win32"in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(0.4.1)
Requirement already satisfied: wcwidth in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(0.1.7)
Requirement already satisfied: pluggy!=0.10,<1.0,>=0.9in c:\python37\lib\site-packages (from pytest>=3.6.0->pytest-timeout)(0.11.0)
Requirement already satisfied: setuptools in c:\users\davieyang\appdata\roaming\python\python37\site-packages (from pytest>=3.6.0->pytest-timeout)(41.0.1)
Installing collected packages: pytest-timeout
Successfully installed pytest-timeout-1.3.3
执行命令
pytest --timeout=0.1
E:\Programs\Python\Python_Pytest\TestScripts>pytest --timeout=0.1======================== test session starts =============================================
platform win32 -- Python 3.7.3, pytest-4.5.0, py-1.8.0, pluggy-0.11.0
rootdir: E:\Programs\Python\Python_Pytest\TestScripts
plugins: xdist-1.29.0, timeout-1.3.3, repeat-0.8.0, forked-1.0.2, allure-pytest-2.6.3
timeout:0.1s
timeout method: thread
timeout func_only:False
collected 17 items
test_asserts.py ...F..F [41%]
test_fixture1.py ..[52%]
test_fixture2.py ..[64%]
test_one.py .F [76%]
test_two.py ....[100%]================================== FAILURES ===============================================
_________________________________ test_add4 ______________________________________________
deftest_add4():>assert add(17,22)>=50
E assert39>=50
E + where 39= add(17,22)
test_asserts.py:34: AssertionError
______________________________ test_true ______________________________________________
deftest_true():>assertnot is_prime(7)
E assertnotTrue
E + where True= is_prime(7)
test_asserts.py:65: AssertionError
________________________________ test_not_equal _________________________________________
deftest_not_equal():>assert(1,2,3)==(3,2,1)
E assert(1,2,3)==(3,2,1)
E At index 0 diff:1!=3
E Use -v to get the full diff
test_one.py:9: AssertionError
====================3 failed,14 passed,1 warnings in0.32 seconds ======================
使用Tox在多环境下的用例执行
tox 测试多种配置
tox是个命令行工具，它允许测试在多种环境下运行，不仅仅是不同的python版本，可以以用它来测试不同的依赖配置和不同的操作系统配置，其工作方式是通过setup.py文件为待测程序创建源码安装包，他会查看tox.ini中的所有环境设置，并针对每个环境设置执行如下操作
安装tox
C:\Users\davieyang>pip install tox
Collecting tox
Using cached https://files.pythonhosted.org/packages/a7/0c/ed234b83d2c4fcef1cfccf97371183d51dafae62e64334de34d0a6333114/tox-3.14.0-py2.py3-none-any.whl
Collecting importlib-metadata<1,>=0.12; python_version <"3.8"(from tox)
Downloading https://files.pythonhosted.org/packages/f6/d2/40b3fa882147719744e6aa50ac39cf7a22a913cbcba86a0371176c425a3b/importlib_metadata-0.23-py2.py3-none-any.whl
Requirement already satisfied: py<2,>=1.4.17in c:\python37\lib\site-packages (from tox)(1.8.0)
Requirement already satisfied: six<2,>=1.0.0in c:\python37\lib\site-packages (from tox)(1.12.0)
Collecting toml>=0.9.4(from tox)
Using cached https://files.pythonhosted.org/packages/a2/12/ced7105d2de62fa7c8fb5fce92cc4ce66b57c95fb875e9318dba7f8c5db0/toml-0.10.0-py2.py3-none-any.whl
Requirement already satisfied: packaging>=14in c:\python37\lib\site-packages (from tox)(19.0)
Collecting filelock<4,>=3.0.0(from tox)
Downloading https://files.pythonhosted.org/packages/93/83/71a2ee6158bb9f39a90c0dea1637f81d5eef866e188e1971a1b1ab01a35a/filelock-3.0.12-py3-none-any.whl
Collecting virtualenv>=14.0.0(from tox)
Downloading https://files.pythonhosted.org/packages/8b/12/8d4f45b8962b03ac9efefe5ed5053f6b29334d83e438b4fe379d21c0cb8e/virtualenv-16.7.5-py2.py3-none-any.whl (3.3MB)100%|████████████████████████████████|3.3MB 9.9kB/s
Collecting pluggy<1,>=0.12.0(from tox)
Downloading https://files.pythonhosted.org/packages/92/c7/48439f7d5fd6bddb4c04b850bb862b42e3e2b98570040dfaf68aedd8114b/pluggy-0.13.0-py2.py3-none-any.whl
Collecting zipp>=0.5(from importlib-metadata<1,>=0.12; python_version <"3.8"->tox)
Downloading https://files.pythonhosted.org/packages/74/3d/1ee25a26411ba0401b43c6376d2316a71addcc72ef8690b101b4ea56d76a/zipp-0.6.0-py2.py3-none-any.whl
Requirement already satisfied: pyparsing>=2.0.2in c:\python37\lib\site-packages (from packaging>=14->tox)(2.4.0)
Requirement already satisfied: more-itertools in c:\python37\lib\site-packages (from zipp>=0.5->importlib-metadata<1,>=0.12; python_version <"3.8"->tox)(7.0.0)
Installing collected packages: zipp, importlib-metadata, toml, filelock, virtualenv, pluggy, tox
Found existing installation: pluggy 0.11.0
Uninstalling pluggy-0.11.0:
Successfully uninstalled pluggy-0.11.0
Successfully installed filelock-3.0.12 importlib-metadata-0.23 pluggy-0.13.0 toml-0.10.0 tox-3.14.0 virtualenv-16.7.5 zipp-0.6.0
配置tox.ini
- 在tox目录下创建一个虚拟环境
- 使用pip安装依赖包
- 使用pip在步骤1的虚拟环境中安装自己的程序包
- 运行测试用例
- 所有环境都测试完成后，tox生成一个汇总的测试结果 在项目文件最顶层添加tox.ini文件（与setup.py放在一个目录里），然后在tox.ini文件里写入如下内容
;---; Excerpted from"Python Testing with pytest",; published by The Pragmatic Bookshelf.; Copyrights apply to this code. It may not be used to create training material,; courses, books, articles,and the like. Contact us if you are in doubt.; We make no guarantees that this code is fit forany purpose.; Visit http://www.pragmaticprogrammer.com/titles/bopytest for more book information.;---# tox.ini , put in same dir as setup.py[tox]
envlist = py27,py37
[testenv]
deps=pytest
commands=pytest
[pytest]
addopts =-rsxX -l --tb=short --strict
markers =
smoke: Run the smoke test test functions
get: Run the test functions that test tasks.get()
选项描述
envlist=py27,py36
表示使用python2.7和python3.6来运行测试用例
deps=pytest
表示让tox确保pytest已经安装，如果有多个依赖还可以继续以相同方式罗列，并且还可以指定版本
commands=pytest
告诉tox在每个环境里运行pytest
执行tox
然后在tox.ini所在路径下执行tox命令即可，它会使用指定的两个环境执行该路径下tests文件夹内的所有测试用例。
(venv) E:\Programs\Python\Python_Pytest\SourceCode\ch7\tasks_proj_v2>tox
GLOB sdist-make: E:\Programs\Python\Python_Pytest\SourceCode\ch7\tasks_proj_v2\setup.py
py37 create: E:\Programs\Python\Python_Pytest\SourceCode\ch7\tasks_proj_v2\.tox\py37
py37 installdeps: pytest
......----------------------------------Summary----------------------------------------------------------------------------------
py27: commands succeeded
py36: commands succeeded
congratulations :)
使用pytest-sugar让测试结果更有趣
pytest-sugar: instafail+Colors+Progress Bar
使用命令pip install pytest-sugar安装插件
E:\Programs\Python\Python_Pytest\TestScripts>pip install pytest-sugar
Collecting pytest-sugar
Downloading https://files.pythonhosted.org/packages/da/3b/f1e3c8830860c1df8f0e0f6713932475141210cfa021e362ca2774d2bf02/pytest_sugar-0.9.2-py2.py3-none-any.whl
Requirement already satisfied: pytest>=2.9in c:\python37\lib\site-packages (from pytest-sugar)(4.5.0)
Collecting packaging>=14.1(from pytest-sugar)
Downloading https://files.pythonhosted.org/packages/91/32/58bc30e646e55eab8b21abf89e353f59c0cc02c417e42929f4a9546e1b1d/packaging-19.0-py2.py3-none-any.whl
Collecting termcolor>=1.1.0(from pytest-sugar)
Downloading https://files.pythonhosted.org/packages/8a/48/a76be51647d0eb9f10e2a4511bf3ffb8cc1e6b14e9e4fab46173aa79f981/termcolor-1.1.0.tar.gz
Requirement already satisfied: atomicwrites>=1.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(1.3.0)
Requirement already satisfied: wcwidth in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(0.1.7)
Requirement already satisfied: attrs>=17.4.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(19.1.0)
Requirement already satisfied: six>=1.10.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(1.12.0)
Requirement already satisfied: colorama; sys_platform =="win32"in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(0.4.1)
Requirement already satisfied: py>=1.5.0in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(1.8.0)
Requirement already satisfied: setuptools in c:\users\davieyang\appdata\roaming\python\python37\site-packages (from pytest>=2.9->pytest-sugar)(41.0.1)
Requirement already satisfied: pluggy!=0.10,<1.0,>=0.9in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(0.11.0)
Requirement already satisfied: more-itertools>=4.0.0; python_version >"2.7"in c:\python37\lib\site-packages (from pytest>=2.9->pytest-sugar)(7.0.0)
Collecting pyparsing>=2.0.2(from packaging>=14.1->pytest-sugar)
Downloading https://files.pythonhosted.org/packages/dd/d9/3ec19e966301a6e25769976999bd7bbe552016f0d32b577dc9d63d2e0c49/pyparsing-2.4.0-py2.py3-none-any.whl (62kB)100%|████████████████████████████████| 71kB 19kB/s
Building wheels for collected packages: termcolor
Building wheel for termcolor (setup.py)... done
Stored in directory: C:\Users\davieyang\AppData\Local\pip\Cache\wheels\7c\06\54\bc84598ba1daf8f970247f550b175aaaee85f68b4b0c5ab2c6
Successfully built termcolor
Installing collected packages: pyparsing, packaging, termcolor, pytest-sugar
Successfully installed packaging-19.0 pyparsing-2.4.0 pytest-sugar-0.9.2 termcolor-1.1.0
执行测试
E:\Programs\Python\Python_Pytest\TestScripts>pytest
Test session starts (platform: win32, Python 3.7.3, pytest 4.5.0, pytest-sugar 0.9.2)
rootdir: E:\Programs\Python\Python_Pytest\TestScripts
plugins: xdist-1.29.0, timeout-1.3.3, sugar-0.9.2, repeat-0.8.0, instafail-0.4.1, forked-1.0.2, allure-pytest-2.6.3
collecting ...
test_asserts.py ✓ 6% ▋
test_asserts.py ✓✓ 12% █▎
test_asserts.py ✓✓✓ 18% █▊
――――――――――――――――――――――――――――――――――――――――――test_add4――――――――――――――――――――――――――――――――――――――――
deftest_add4():>assert add(17,22)>=50
E assert39>=50
E + where 39= add(17,22)
test_asserts.py:34: AssertionError
test_asserts.py ⨯ 24% ██▍
test_asserts.py ⨯✓ 29% ██▉
test_asserts.py ⨯✓✓ 35% ███▌
――――――――――――――――――――――――――――――――――――――― test_true――――――――――――――――――――――――――――――――――――――――――
deftest_true():>assertnot is_prime(7)
E assertnotTrue
E + where True= is_prime(7)
test_asserts.py:65: AssertionError
test_asserts.py ⨯ 41% ████▎
test_fixture1.py ✓ 47% ████
test_fixture1.py ✓✓ 53% ████
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test_fixture2.py ✓ 59% ████
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test_one.py ✓ 71% ████
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―――――――――――――――――――――――――――――――――――― test_not_equal ―――――――――――――――――――――――――――――――――――――――
deftest_not_equal():>assert(1,2,3)==(3,2,1)
E assert(1,2,3)==(3,2,1)
E At index 0 diff:1!=3
E Use -v to get the full diff
test_one.py:9: AssertionError
test_one.py ⨯ 76% █████
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test_two.py ✓ 82% ████
test_two.py ✓✓ 88% ████
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test_two.py ✓✓✓✓ 100% ███
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==================================== warnings summary ===================================
c:\python37\lib\site-packages\_pytest\mark\structures.py:324
c:\python37\lib\site-packages\_pytest\mark\structures.py:324: PytestUnknownMarkWarning: Unknown pytest.mark.run_these_cases -is this a typo? You can register custom mar
ks to avoid this warning -for details, see https://docs.pytest.org/en/latest/mark.html
PytestUnknownMarkWarning,-- Docs: https://docs.pytest.org/en/latest/warnings.html
Results (0.47s):14 passed
3 failed
- test_asserts.py:33 test_add4
- test_asserts.py:64 test_true
- test_one.py:8 test_not_equal
使用PDB在测试失败时开启调试模式
PDB试失败的测试用例
--pdb
是Python标准库里的调试模块，在pytest里，可以使用–pdb选项在测试失败是开启调试的交互模式
(venv) E:\Programs\Python\Python_Pytest\TestScripts>pytest --pdb -v -x --lf
========================== test session starts =====================================
platform win32 -- Python 3.7.3, pytest-4.5.0, py-1.8.0, pluggy-0.11.0-- c:\python37\python.exe
cachedir:.pytest_cache
rootdir: E:\Programs\Python\Python_Pytest\TestScripts, inifile: pytest.ini
plugins: xdist-1.29.0, timeout-1.3.3, repeat-0.8.0, nice-0.1.0, instafail-0.4.1, forked-1.0.2, emoji-0.2.0, allure-pytest-2.6.3
collected 119 items
run-last-failure: no previously failed tests,not deselecting items.
test_api_exceptions.py::TestAdd::test_missing_summary PASSED [0%]
test_api_exceptions.py::TestAdd::test_done_not_bool FAILED [1%]>>>>>>>>>>>>>>>>>>> traceback >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
self =<TestScripts.test_api_exceptions.TestAdd object at 0x0000000CEEA430F0>deftest_done_not_bool(self):"""Should raise an exception if done is not a bool."""with pytest.raises(ValueError):> tasks.add(Task(summary='summary', done='True'))
E Failed: DID NOT RAISE <class'ValueError'>
test_api_exceptions.py:19: Failed
>>>>>>>>>>>>>>>>>>>>> entering PDB >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> e:\programs\python\python_pytest\testscripts\test_api_exceptions.py(19)test_done_not_bool()-> tasks.add(Task(summary='summary', done='True'))(Pdb)
加上了
--pdb
参数的执行结果，我们看到最后进入了(Pdb)的交互模式，(Pdb)提示符出现了，表明可以使用pdb的交互调试功能
参数介绍p/print expr输出expr的值pp expr美化输出expr的值l/list列出错误并显示错误之前和之后的5行代码l/list begin,end列出错误，并通过行号指定需要显示的代码区域a/args打印当前函数的参数列表（断点发生在帮助函数中会很实用）u/up移动到堆栈的上一层d/down移动到堆栈的下一层q/quit退出当前调试会话更多的pdb使用方法可参考PDB详细的使用方法
本文转载自: https://blog.csdn.net/dawei_yang000000/article/details/135323314
版权归原作者 Davieyang.D.Y 所有， 如有侵权，请联系我们删除。
版权归原作者 Davieyang.D.Y 所有， 如有侵权，请联系我们删除。