前言

pytest配置文件可以改變pytest的運行方式，它是一個固定的文件pytest.ini文件，讀取配置信息，按指定的方式去運行

非test文件
pytest里面有些文件是非test文件
pytest.ini：pytest的主配置文件，可以改變pytest的默認行為
conftest.py：測試用例的一些fixture配置
init.py：識別該文件夾為python的package包

查看pytest.ini的配置選項
cmd執(zhí)行

pytest --help

找到這部分內(nèi)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.
  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

pytest.ini應該放哪里？
就放在項目根目錄下 ，不要亂放，不要亂起其他名字

常用的配置項

marks

作用：測試用例中添加了 @pytest.mark.webtest 裝飾器，如果不添加marks選項的話，就會報warnings

格式：list列表類型
寫法：

[pytest]
markers =
    weibo: this is weibo page
    toutiao: toutiao
    xinlang: xinlang

xfail_strict

作用：設置xfail_strict = True可以讓那些標記為@pytest.mark.xfail但實際通過顯示XPASS的測試用例被報告為失敗

格式：True 、False（默認），1、0

寫法：

[pytest]

# mark標記說明
markers =
    weibo: this is weibo page
    toutiao: toutiao
    xinlang: xinlang

xfail_strict = True

具體代碼例子
未設置 xfail_strict = True 時，測試結(jié)果顯示XPASS

@pytest.mark.xfail()
def test_case1():
    a = "a"
    b = "b"
    assert a != b

collecting ... collected 1 item

02斷言異常.py::test_case1 XPASS [100%]

============================= 1 xpassed in 0.02s ==============================

已設置 xfail_strict = True 時，測試結(jié)果顯示failed

collecting ... collected 1 item

02斷言異常.py::test_case1 FAILED                                         [100%]
02斷言異常.py:54 (test_case1)
[XPASS(strict)] 

================================== FAILURES ===================================
_________________________________ test_case1 __________________________________
[XPASS(strict)] 
=========================== short test summary info ===========================
FAILED 02斷言異常.py::test_case1
============================== 1 failed in 0.02s ==============================

addopts

作用：addopts參數(shù)可以更改默認命令行選項，這個當我們在cmd輸入一堆指令去執(zhí)行用例的時候，就可以用該參數(shù)代替了，省去重復性的敲命令工作

比如：想測試完生成報告，失敗重跑兩次，一共運行兩次，通過分布式去測試，如果在cmd中寫的話，命令會很長

pytest -v --rerun=2 --count=2 --html=report.html --self-contained-html -n=auto

每次都這樣敲不太現(xiàn)實，addopts就可以完美解決這個問題

[pytest]

# mark
markers =
    weibo: this is weibo page
    toutiao: toutiao
    xinlang: xinlang

xfail_strict = True

# 命令行參數(shù)
addopts = -v --reruns=1 --count=2 --html=reports.html --self-contained-html -n=auto

加了addopts之后，我們在cmd中只需要敲pytest就可以生效了。

norecursedirs

作用：pytest 收集測試用例時，會遞歸遍歷所有子目錄，包括某些你明知道沒必要遍歷的目錄，遇到這種情況，可以使用 norecursedirs 參數(shù)簡化 pytest 的搜索工作。

默認設置：

norecursedirs = .* build dist CVS _darcs {arch} *.egg 

正確寫法：多個路徑用空格隔開

[pytest]

norecursedirs = .* build dist CVS _darcs {arch} *.egg venv src resources log report util

更改測試用例收集規(guī)則：

pytest默認的測試用例收集規(guī)則
文件名以 test_*.py 文件和 *test.py
以 test 開頭的函數(shù)
以 Test 開頭的類，不能包含 init 方法
以 test_ 開頭的類里面的方法

我們是可以修改或者添加這個用例收集規(guī)則的；當然，是建議在原有的規(guī)則上添加的，如下配置

[pytest]

python_files =     test_*  *_test  test*
python_classes =   Test*   test*
python_functions = test_*  test*

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