前言

pytest配置文件可以改变pytest的运行方式，它是一个固定的文件pytest.ini文件，读取配置信息，按指定的方式去运行

查看pytest.ini的配置选项

pytest -h

找到以下内容

[pytest] ini-options in the first pytest.ini|tox.ini|setup.cfg file found:

  markers (linelist):   markers for test functions
  empty_parameter_set_mark (string):
                        default marker for empty parametersets
  norecursedirs (args): directory patterns to avoid for recursion
  testpaths (args):     directories to search for tests when no files or directories are given in the command line.
  filterwarnings (linelist):
                        Each line specifies a pattern for warnings.filterwarnings. Processed after -W/--pythonwarnings.
  usefixtures (args):   list of default fixtures to be used with this project
  python_files (args):  glob-style file patterns for Python test module discovery
  python_classes (args):
                        prefixes or glob names for Python test class discovery
  python_functions (args):
                        prefixes or glob names for Python test function and method discovery
  disable_test_id_escaping_and_forfeit_all_rights_to_community_support (bool):
                        disable string escape non-ascii characters, might cause unwanted side effects(use at your own risk)
  console_output_style (string):
                        console output: "classic", or with additional progress information ("progress" (percentage) | "count").
  xfail_strict (bool):  default for the strict parameter of xfail markers when not given explicitly (default: False)
  enable_assertion_pass_hook (bool):
                        Enables the pytest_assertion_pass hook.Make sure to delete any previously generated pyc cache files.
  junit_suite_name (string):
                        Test suite name for JUnit report
  junit_logging (string):
                        Write captured log messages to JUnit report: one of no|log|system-out|system-err|out-err|all
  junit_log_passing_tests (bool):
                        Capture log information for passing tests to JUnit report:
  junit_duration_report (string):
                        Duration time to report: one of total|call
  junit_family (string):
                        Emit XML for schema: one of legacy|xunit1|xunit2
  doctest_optionflags (args):
                        option flags for doctests
  doctest_encoding (string):
                        encoding used for doctest files
  cache_dir (string):   cache directory path.
  log_level (string):   default value for --log-level
  log_format (string):  default value for --log-format
  log_date_format (string):
                        default value for --log-date-format
  log_cli (bool):       enable log display during test run (also known as "live logging").
  log_cli_level (string):
                        default value for --log-cli-level
  log_cli_format (string):
                        default value for --log-cli-format
  log_cli_date_format (string):
                        default value for --log-cli-date-format
  log_file (string):    default value for --log-file
  log_file_level (string):
                        default value for --log-file-level
  log_file_format (string):
                        default value for --log-file-format
  log_file_date_format (string):
                        default value for --log-file-date-format
  log_auto_indent (string):
                        default value for --log-auto-indent
  faulthandler_timeout (string):
                        Dump the traceback of all threads if a test takes more than TIMEOUT seconds to finish.
  addopts (args):       extra command line options
  minversion (string):  minimally required pytest version
  required_plugins (args):
                        plugins that must be present for pytest to run
  base_url (string):    base url for the application under test.
  render_collapsed (bool):
                        Open the report with all rows collapsed. Useful for very large reports
  max_asset_filename_length (string):
                        set the maximum filename length for assets attached to the html report.
  rsyncdirs (pathlist): list of (relative) paths to be rsynced for remote distributed testing.
  rsyncignore (pathlist):
                        list of (relative) glob-style paths to be ignored for rsyncing.
  looponfailroots (pathlist):
                        directories to check for changes

注意

pytest一定要放在项目的根目录，名字也要命名为pytest.ini

mark标记

作用：测试用例中添加了 @pytest.mark.web装饰器，如果不添加marks选项的话，就会报warnings

写法

[pytest]
markers =
  app:  Run the app case
  web:  Run the web case

addopts

作用：addopts参数可以更改默认命令行选项，这个当我们在cmd输入一堆指令去执行用例的时候，就可以用该参数代替了，省去重复性的敲命令工作

比如：想测试完生成报告，失败重跑两次，如果在bash中写的话，命令会很长

pytest -v --reruns=2 --alluredir ./report --clean-alluredir

每次输入这么多，不太好记住，于是可以加到pytest.ini里

[pytest]
markers =
  app:  Run the app case
  web:  Run the web case
addopts = -v --reruns=2 --alluredir ./report --clean-alluredir

这样我下次打开cmd，直接输入pytest，它就能默认带上这些参数了

norecursedirs

作用：pytest 收集测试用例时，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，一般情况下项目的用例都放在case文件夹下，所以除了case文件夹，其他项目的路径都可以不必递归

默认设置： norecursedirs = .* build dist CVS _darcs {arch} *.egg

正确写法：在上面默认值后面加上除了case的所有路径，多个路径用空格隔开（一）

norecursedirs = .* build dist CVS _darcs {arch} *.egg API common configFile data logs report

自定义匹配规则

查看pytest -h 查看命令行参数找到 [pytest] ini-options

• python_files (args) 匹配 python 用例文件， 如test_*.py、 *_test.py
• python_classes (args) 匹配 class 类名称 如Test*.py
• python_functions (args) 匹配函数和class里面方法 如test_*

假如我们想把匹配规则改为函数名以best_*开头

[pytest]

python_files =  test_*.py
python_classes = Test*
python_functions = best_*

这样以后pytest就匹配的都是以best开头的用例了