问题描述
我无法找到解决此错误的方法，我使用 pytest 对 aws 设备群运行 selenium 测试，有时会出现此错误，使测试不稳定。 有人能解释一下为什么会发生这种情况，有时却不会吗？我一直无法找到有关它的任何信息。
def check_response(self,response):
"""
Checks that a JSON response from the WebDriver does not have an error.
:Args:
- response - The JSON response from the WebDriver server as a dictionary
object.
:Raises: If the response contains an error message.
"""
status = response.get('status',None)
if status is None or status == ErrorCode.SUCCESS:
return
value = None
message = response.get("message","")
screen = response.get("screen","")
stacktrace = None
if isinstance(status,int):
value_json = response.get('value',None)
if value_json and isinstance(value_json,basestring):
import json
try:
value = json.loads(value_json)
if len(value.keys()) == 1:
value = value['value']
status = value.get('error',None)
if status is None:
status = value["status"]
message = value["value"]
if not isinstance(message,basestring):
value = message
message = message.get('message')
else:
message = value.get('message',None)
except ValueError:
pass
exception_class = ErrorInResponseException
if status in ErrorCode.NO_SUCH_ELEMENT:
exception_class = NoSuchElementException
elif status in ErrorCode.NO_SUCH_FRAME:
exception_class = NoSuchFrameException
elif status in ErrorCode.NO_SUCH_WINDOW:
exception_class = NoSuchWindowException
elif status in ErrorCode.STALE_ELEMENT_REFERENCE:
exception_class = StaleElementReferenceException
elif status in ErrorCode.ELEMENT_NOT_VISIBLE:
exception_class = ElementNotVisibleException
elif status in ErrorCode.INVALID_ELEMENT_STATE:
exception_class = InvalidElementStateException
elif status in ErrorCode.INVALID_SELECTOR \
or status in ErrorCode.INVALID_XPATH_SELECTOR \
or status in ErrorCode.INVALID_XPATH_SELECTOR_RETURN_TYPER:
exception_class = InvalidSelectorException
elif status in ErrorCode.ELEMENT_IS_NOT_SELECTABLE:
exception_class = ElementNotSelectableException
elif status in ErrorCode.ELEMENT_NOT_INteraCTABLE:
exception_class = ElementnotinteractableException
elif status in ErrorCode.INVALID_COOKIE_DOMAIN:
exception_class = InvalidCookieDomainException
elif status in ErrorCode.UNABLE_TO_SET_COOKIE:
exception_class = UnabletoSetCookieException
elif status in ErrorCode.TIMEOUT:
exception_class = TimeoutException
elif status in ErrorCode.SCRIPT_TIMEOUT:
exception_class = TimeoutException
elif status in ErrorCode.UNKNowN_ERROR:
exception_class = WebDriverException
elif status in ErrorCode.UNEXPECTED_ALERT_OPEN:
exception_class = UnexpecteDalertPresentException
elif status in ErrorCode.NO_ALERT_OPEN:
exception_class = NoAlertPresentException
elif status in ErrorCode.IME_NOT_AVAILABLE:
exception_class = ImeNotAvailableException
elif status in ErrorCode.IME_ENGINE_ACTIVATION_Failed:
exception_class = ImeActivationFailedException
elif status in ErrorCode.MOVE_TARGET_OUT_OF_BOUNDS:
exception_class = MoveTargetoutOfBoundsException
elif status in ErrorCode.JAVASCRIPT_ERROR:
exception_class = JavascriptException
elif status in ErrorCode.SESSION_NOT_CREATED:
exception_class = SessionNotCreatedException
elif status in ErrorCode.INVALID_ARGUMENT:
exception_class = invalidargumentexception
elif status in ErrorCode.NO_SUCH_COOKIE:
exception_class = NoSuchCookieException
elif status in ErrorCode.UNABLE_TO_CAPTURE_SCREEN:
exception_class = ScreenshotException
elif status in ErrorCode.ELEMENT_CLICK_INTERCEPTED:
exception_class = ElementClickInterceptedException
elif status in ErrorCode.INSECURE_CERTIFICATE:
exception_class = InsecureCertificateException
elif status in ErrorCode.INVALID_COORDINATES:
exception_class = InvalidCoordinatesException
elif status in ErrorCode.INVALID_SESSION_ID:
exception_class = InvalidSessionIdException
elif status in ErrorCode.UNKNowN_METHOD:
exception_class = UnkNownMethodException
else:
exception_class = WebDriverException
if value == '' or value is None:
value = response['value']
if isinstance(value,basestring):
if exception_class == ErrorInResponseException:
raise exception_class(response,value)
raise exception_class(value)
if message == "" and 'message' in value:
message = value['message']
screen = None
if 'screen' in value:
screen = value['screen']
stacktrace = None
if 'stackTrace' in value and value['stackTrace']:
stacktrace = []
try:
for frame in value['stackTrace']:
line = self._value_or_default(frame,'lineNumber','')
file = self._value_or_default(frame,'fileName','<anonymous>')
if line:
file = "%s:%s" % (file,line)
meth = self._value_or_default(frame,'methodName','<anonymous>')
if 'className' in frame:
meth = "%s.%s" % (frame['className'],meth)
msg = " at %s (%s)"
msg = msg % (meth,file)
stacktrace.append(msg)
except TypeError:
pass
if exception_class == ErrorInResponseException:
raise exception_class(response,message)
elif exception_class == UnexpecteDalertPresentException:
alert_text = None
if 'data' in value:
alert_text = value['data'].get('text')
elif 'alert' in value:
alert_text = value['alert'].get('text')
raise exception_class(message,screen,stacktrace,alert_text)
raise exception_class(message,stacktrace)
E selenium.common.exceptions.WebDriverException：消息：URL 已过期
解决方法
当您创建远程 URL 以访问 AWS Device Farm 上的 selenium 会话时，您需要指定该 URL 的过期时间。如果您指定的值过低，则 URL 将在测试期间过期，从而产生 URL has expired 消息。
有关详细信息，请查看 CreateTestGridUrl 文档并查看 expiresInSeconds 参数。