我最近开始使用 pytest 来运行我的自动化测试套件。按顺序运行时成功完成的测试运行现在在我使用 xdist 并行运行套件时随机失败。我的pytest配置如下；
[pytest]
addopts = -nauto --rerun 3 -ra --timeout=180 --junit-xml=pyresult.xml
python_files=test*.py
随机测试将无法启动 Chrome 驱动程序，最终将引发超时。对于所有其他因不稳定原因导致测试失败的实例，pytest 很乐意为我重新运行测试。但是在这种情况下，当超时被抛出时，pytest 会输出超时然后挂起。我的测试运行永远不会结束，因此 Jenkins 没有得到它等待的结果。完成 pytest 的唯一方法是手动发送控制中断。
我的驱动程序启动如下（注意我不认为我的代码是这里的问题）；
@classmethod
def open_browser(cls, browser_name, configuration, down_dir=""):
"""
Returns the driver for the required browser
"""
if browser_name == 'Chrome':
chrome_options = webdriver.ChromeOptions()
prefs = {"download.default_directory" : down_dir}
chrome_options.add_experimental_option("prefs", prefs)
driver = webdriver.Chrome(
executable_path=configuration, chrome_options=chrome_options)
超时消息如下；
~~~~~~~~~~~~~~~~~~~~~~~~~~ Stack of <unknown> (8460) ~~~~~~~~~~~~~~~~~~~~~~~~~~~
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 277, in _perform_spawn
reply.run()
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 213, in run
self._result = func(*args, **kwargs)
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 954, in _thread_receiver
msg = Message.from_io(io)
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 418, in from_io
header = io.read(9) # type 1, channel 4, payload 4
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 386, in read
data = self._read(numbytes-len(buf))
~~~~~~~~~~~~~~~~~~~~~~~~~ Stack of MainThread (12788) ~~~~~~~~~~~~~~~~~~~~~~~~~~
File "<string>", line 1, in <module>
File "<string>", line 7, in <module>
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 1534, in serve
SlaveGateway(io=io, id=id, _startcount=2).serve()
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 1047, in serve
self._execpool.integrate_as_primary_thread()
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 259, in integrate_as_primary_thread
self._perform_spawn(reply)
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 277, in _perform_spawn
reply.run()
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 213, in run
self._result = func(*args, **kwargs)
File "c:\python27\lib\site-packages\execnet\gateway_base.py", line 1072, in executetask
do_exec(co, loc) # noqa
File "<string>", line 1, in do_exec
File "<remote exec>", line 154, in <module>
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 724, in __call__
return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 338, in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 333, in <lambda>
_MultiCall(methods, kwargs, hook.spec_opts).execute()
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 596, in execute
res = hook_impl.function(*args)
File "c:\python27\lib\site-packages\_pytest\main.py", line 119, in pytest_cmdline_main
return wrap_session(config, _main)
File "c:\python27\lib\site-packages\_pytest\main.py", line 94, in wrap_session
session.exitstatus = doit(config, session) or 0
File "c:\python27\lib\site-packages\_pytest\main.py", line 125, in _main
config.hook.pytest_runtestloop(session=session)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 724, in __call__
return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 338, in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 333, in <lambda>
_MultiCall(methods, kwargs, hook.spec_opts).execute()
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 596, in execute
res = hook_impl.function(*args)
File "<remote exec>", line 58, in pytest_runtestloop
File "<remote exec>", line 74, in run_tests
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 724, in __call__
return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 338, in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 333, in <lambda>
_MultiCall(methods, kwargs, hook.spec_opts).execute()
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 595, in execute
return _wrapped_call(hook_impl.function(*args), self.execute)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 247, in _wrapped_call
call_outcome = _CallOutcome(func)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 264, in __init__
self.result = func()
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 595, in execute
return _wrapped_call(hook_impl.function(*args), self.execute)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 247, in _wrapped_call
call_outcome = _CallOutcome(func)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 264, in __init__
self.result = func()
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 596, in execute
res = hook_impl.function(*args)
File "c:\python27\lib\site-packages\pytest_rerunfailures.py", line 73, in pytest_runtest_protocol
reports = runtestprotocol(item, nextitem=nextitem, log=False)
File "c:\python27\lib\site-packages\_pytest\runner.py", line 76, in runtestprotocol
reports.append(call_and_report(item, "call", log))
File "c:\python27\lib\site-packages\_pytest\runner.py", line 120, in call_and_report
call = call_runtest_hook(item, when, **kwds)
File "c:\python27\lib\site-packages\_pytest\runner.py", line 138, in call_runtest_hook
return CallInfo(lambda: ihook(item=item, **kwds), when=when)
File "c:\python27\lib\site-packages\_pytest\runner.py", line 150, in __init__
self.result = func()
File "c:\python27\lib\site-packages\_pytest\runner.py", line 138, in <lambda>
return CallInfo(lambda: ihook(item=item, **kwds), when=when)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 724, in __call__
return self._hookexec(self, self._nonwrappers + self._wrappers, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 338, in _hookexec
return self._inner_hookexec(hook, methods, kwargs)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 333, in <lambda>
_MultiCall(methods, kwargs, hook.spec_opts).execute()
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 595, in execute
return _wrapped_call(hook_impl.function(*args), self.execute)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 247, in _wrapped_call
call_outcome = _CallOutcome(func)
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 264, in __init__
self.result = func()
File "c:\python27\lib\site-packages\_pytest\vendored_packages\pluggy.py", line 596, in execute
res = hook_impl.function(*args)
File "c:\python27\lib\site-packages\_pytest\runner.py", line 91, in pytest_runtest_call
item.runtest()
File "c:\python27\lib\site-packages\_pytest\unittest.py", line 151, in runtest
self._testcase(result=self)
File "c:\python27\lib\unittest\case.py", line 393, in __call__
return self.run(*args, **kwds)
File "c:\python27\lib\unittest\case.py", line 320, in run
self.setUp()
File "C:\Users\rhoward\Documents\GitHub\ui-selenium-tests\ui_selenium_tests\test010_provider_application_accordia
n.py", line 94, in setUp
self.used_browser, self.browser_config)
File "C:\Users\rhoward\Documents\GitHub\ui-selenium-tests\ui_selenium_tests\general_functions.py", line 198, in o
pen_browser
executable_path=configuration, chrome_options=chrome_options)
File "c:\python27\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 67, in __init__
desired_capabilities=desired_capabilities)
File "c:\python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 91, in __init__
self.start_session(desired_capabilities, browser_profile)
File "c:\python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 173, in start_session
'desiredCapabilities': desired_capabilities,
File "c:\python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 231, in execute
response = self.command_executor.execute(driver_command, params)
File "c:\python27\lib\site-packages\selenium\webdriver\remote\remote_connection.py", line 395, in execute
return self._request(command_info[0], url, body=data)
File "c:\python27\lib\site-packages\selenium\webdriver\remote\remote_connection.py", line 426, in _request
resp = self._conn.getresponse()
File "c:\python27\lib\httplib.py", line 1136, in getresponse
response.begin()
File "c:\python27\lib\httplib.py", line 453, in begin
version, status, reason = self._read_status()
File "c:\python27\lib\httplib.py", line 409, in _read_status
line = self.fp.readline(_MAXLINE + 1)
File "c:\python27\lib\socket.py", line 480, in readline
data = self._sock.recv(self._rbufsize)
+++++++++++++++++++++++++++++++++++ Timeout ++++++++++++++++++++++++++++++++++++
理想情况下，我希望 pytest 记录超时，但只需再次重新运行测试并正常完成测试运行。