一个自动化项目工程中，如何通过fixture+conftest 实现session级别的登陆登出效果以及driver的全局共享

1052042663 · 2020 年11 月 25 日 03:36

我目前写的一个demo工程及脚本细节如下：

运行之后的报错信息：

tools/browser/9d4a6276-a4cd-456a-93e9-c46162146006
----------test_demo---------

―――――――――――――――――――――――――――――――――― TestDemo1.test_input_content ―
――――――――――――――――――――――――――――――――――

self = <testCase.test_demo1.TestDemo1 object at 0x000001B70E69C288>

def test_input_content(self):
    print('----------test_demo---------')

  self.pi.input_keys()

testCase\test_demo1.py:24:

―――――――――――――――――――――――――――――――――― TestDemo1.test_input_content ―
――――――――――――――――――――――――――――――――――

self = <testCase.test_demo1.TestDemo1 object at 0x000001B70E69C288>

def test_input_content(self):
    print('----------test_demo---------')

  self.pi.input_keys()

testCase\test_demo1.py:24:

page\index_page.py:14: in input_keys
self.find(’//*[@id=“kw”]’).send_keys(‘python’)
page\base_page.py:30: in find
ele = self.driver.find_element(By.XPATH,value)
c:\python376\lib\site-packages\selenium\webdriver\remote\webdriver.py:978: in find_element
‘value’: value})[‘value’]
c:\python376\lib\site-packages\selenium\webdriver\remote\webdriver.py:321: in execute
self.error_handler.check_response(response)

self = <selenium.webdriver.remote.errorhandler.ErrorHandler object at 0x000001B70EF6C408>
response = {‘status’: 404, ‘value’: ‘{“value”:{“error”:“no such element”,“message”:“no such element:
Unable to locate element: {…\n\tRtlGetAppContainerNamedObjectPath [0x77EA8944+228]\n\tRtlGetA
ppContainerNamedObjectPath [0x77EA8914+180]\n”}}’}

def check_response(self, response):
    """
    Checks that a JSON response from the WebDriver does not have an error.


            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, screen, stacktrace)

E selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locat
e element: {“method”:“xpath”,“selector”:"//*[@id=“kw”]"}
E (Session info: chrome=85.0.4183.83)

c:\python376\lib\site-packages\selenium\webdriver\remote\errorhandler.py:242: NoSuchElementException

------TestDemo1测试后清理-----------
testCase\test_demo1.py::TestDemo1.test_input_content ⨯ 50% █████
—TestDemo2模块测试开始----

DevTools listening on ws://127.0.0.1:5997/devtools/browser/61962244-4acd-4c2e-b2ce-ae470410c483

―――――――――――――――――――――――――――――――――――――― TestDemo2.test_search
――――――――――――――――――――――――――――――――――――――

self = <testCase.test_demo2.TestDemo2 object at 0x000001B70EFC9248>

def test_search(self):

  self.pi.click_search()

testCase\test_demo2.py:16:

page\index_page.py:17: in click_search
self.find(’//*[@id=“su”]’).click()
page\base_page.py:30: in find
ele = self.driver.find_element(By.XPATH,value)
c:\python376\lib\site-packages\selenium\webdriver\remote\webdriver.py:978: in find_element
‘value’: value})[‘value’]
c:\python376\lib\site-packages\selenium\webdriver\remote\webdriver.py:321: in execute
self.error_handler.check_response(response)

self = <selenium.webdriver.remote.errorhandler.ErrorHandler object at 0x000001B70E694B48>
response = {‘status’: 404, ‘value’: ‘{“value”:{“error”:“no such element”,“message”:“no such element:
Unable to locate element: {…\n\tRtlGetAppContainerNamedObjectPath [0x77EA8944+228]\n\tRtlGetA
ppContainerNamedObjectPath [0x77EA8914+180]\n”}}’}

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, screen, stacktrace)

E selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locat
e element: {“method”:“xpath”,“selector”:"//*[@id=“su”]"}
E (Session info: chrome=85.0.4183.83)

c:\python376\lib\site-packages\selenium\webdriver\remote\errorhandler.py:242: NoSuchElementException

----TestDemo2功能模块测试结束-------
testCase\test_demo2.py::TestDemo2.test_search ⨯ 100% █████
█████

Results (19.53s):
2 failed
- testCase/test_demo1.py:22 TestDemo1.test_input_content
- testCase/test_demo2.py:15 TestDemo2.test_search

xixi-tech · 2020 年11 月 25 日 04:04

换一种方式，fixture方法里使用下面这种方式完成关闭操作

def end():
    	driver.quit()
    request.addfinalizer(end)

1052042663 · 2020 年11 月 25 日 05:25

我现在要解决的是全局driver的问题呀

1052042663 · 2020 年11 月 25 日 05:26

xixi-tech · 2020 年11 月 25 日 05:45

在conftest.py 文件里定义一个全局的driver就可以了呀