pytest配置文件 -- pytest.ini
官方文档介绍了四种配置文件，每种文件有各自的用处。
- pytest.ini ：主配置文件，最常用，优先匹配配置项
- tox.ini ：可以理解为pytest.ini的另一种写法，二者选择使用其一即可
- setup.cfg
- conftest.py ：本地的插件库，主要用于存放fixture，其中的hook函数和fixture将作用于该文件所在的目录以及所有子目录
重点介绍pytest.ini和conftest.py
pytest --help # 查看可配置项
[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. 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. filterwarnings (linelist): Each line specifies a pattern for warnings.filterwarnings. Processed after -W/--pythonwarnings. log_print (bool): default value for --no-print-logs 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. Not available on Windows. addopts (args): extra command line options minversion (string): minimally required pytest version 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
一、pytest.ini
存放位置：配置文件一般都放在项目根目录，别乱发放
配置名字：固定为pytest.ini
[pytest] xfail_strict = True addopts = -v -rpEf testpaths = ./dir01/dir01_test.py markers = weibo: this is weibo page toutiao: toutiao xinlang: xinlang
对于上面的配置文件，只需要执行：pytest 即代表没有改配置文件时的 pytest -v -rpEf dir01::dir01_test.py 指令
1.addopts
pytest执行时的默认命令行参数,可选参数见pytest用法。配置后执行时直接pytest即可，相当于后面默认加了命令行参数
如果pytest.ini配置的addopts和命令行的参数不一致，那么最终是以命令行的为准，如 pytest -q -rp 那么会以q简单模式输出而不是v模式，结果只显示passed的，不会显示pEf
比如想测试完生成报告，失败重跑两次，一共运行两次，通过分布式去测试，如果在cmd中写的话，命令会很长：
pytest -v --rerun=2 --count=2 --html=report.html --self-contained-html -n=auto
直接在配置中增加以下配置，执行的时候只需要输入 pytest 即可：
# 命令行参数 addopts = -v --reruns=1 --count=2 --html=reports.html --self-contained-html -n=auto
2.testpaths
需要执行的测试用例路径，可以指定某个包、某个模块或具体测试用例，那么执行命令 pytest 将不会执行根目录下所有，而是执行testpaths下所有用例
3.markers
测试用例中添加了@pytest.mark.webtest 装饰器，如果不添加markers选项的话，就会报warnings
4.norecursedirs
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，遇到这种情况，可以使用 norecursedirs 参数简化 pytest 的搜索工作【还是挺有用的！！！】
默认：norecursedirs = .* build dist CVS _darcs {arch} *.egg
多个路径空格隔开，如下：
[pytest]
norecursedirs = .* build dist CVS _darcs {arch} *.egg venv src resources log report util
5.xfail_strict
即xfail的strict参数，默认是False,如果为true，被装饰用例即使无报错，测试结果也是failed，不是xpassed
如果pytest.ini配置的xfail_strict和测试用例xfail装饰器自己的参数不一致，那么最终是以测试用例自己的为准，如测试用例指明strict=False,那么对于该用例配置文件的True就会失效
6.更改用例书写规则
pytest有默认的用例书写规则，当然也可以修改或者添加这个用例收集规则，建议在原有的规则上添加的，如下配置
[pytest] python_files = test_* *_test test* python_classes = Test* test* python_functions = test_* test*
