Question

我使用Python 3.4和Selenium Webdriver python bindings。我在Windows机器上运行。当我使用Selenium Chrome和Firefox网络驱动程序时，以下脚本可用于测试我的网站。但是，当我切换到IE webdriver时，它失败了。这是我的剧本：

driver = webdriver.Ie()               # Line #1
appURL = ("http://localhost:3000")
driver.maximize_window()
driver.get(appURL)


print("Waiting for 'MyRadio' to be present")
WebDriverWait(driver, 10).until(EC.presence_of_element_located((By.ID,'MyRadioButtonID')))
print("'MyRadio' is present")


myRadioBtn = driver.find_element_by_id("MyRadioButtonID")
print("myRadioBtn = %s" % myRadioBtn)
print('myRadioBtn.get_attribute("disabled") = %s' % myRadioBtn.get_attribute("disabled"))
print('myRadioBtn.get_attribute("class") = %s' % myRadioBtn.get_attribute("class"))
print('myRadioBtn.get_attribute("data-name") = %s' % myRadioBtn.get_attribute("data-name"))
print('myRadioBtn.get_attribute("data-key") = %s' % myRadioBtn.get_attribute("data-key"))
print('myRadioBtn.get_attribute("name") = %s' % myRadioBtn.get_attribute("name"))
print('myRadioBtn.get_attribute("type") = %s' % myRadioBtn.get_attribute("type"))
print('myRadioBtn.is_enabled() = %s' % myRadioBtn.is_enabled())
print('myRadioBtn.is_displayed() = %s' % myRadioBtn.is_displayed())
print('dir(myRadioBtn) = %s' % dir(myRadioBtn))
print("\n")


print("About to click 'MyRadio'")
time.sleep(3)
myRadioBtn.click()               # Line #28


print('myRadioBtn.get_attribute("value") = %s' % myRadioBtn.get_attribute("value"))
print("Clicked 'MyRadio' 1")

如上所述，这适用于Chrome和Firefox。但是，当我将第1行更改为＆＃34;即＃34;时，它在＃28行中失败。我安装了IE 9。错误消息是"ElementNotVisibleException: Message: 'Cannot click on element'"这种情况100％发生。以下是该失败产生的输出。

Waiting for 'MyRadio' to be present
'MyRadio' is present
myRadioBtn = <selenium.webdriver.remote.webelement.WebElement object at 0x0299F290>
myRadioBtn.get_attribute("disabled") = None
myRadioBtn.get_attribute("class") = myClass
myRadioBtn.get_attribute("data-name") = myDataName
myRadioBtn.get_attribute("data-key") = myKey
myRadioBtn.get_attribute("name") = myName
myRadioBtn.get_attribute("type") = radio
myRadioBtn.is_enabled() = True
myRadioBtn.is_displayed() = False

dir(myRadioBtn) = ['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__', '__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__', '__weakref__', '_execute', '_id', '_parent', '_upload', 'clear', 'click', 'find_element', 'find_element_by_class_name', 'find_element_by_css_selector', 'find_element_by_id', 'find_element_by_link_text', 'find_element_by_name', 'find_element_by_partial_link_text', 'find_element_by_tag_name', 'find_element_by_xpath', 'find_elements', 'find_elements_by_class_name', 'find_elements_by_css_selector', 'find_elements_by_id', 'find_elements_by_link_text', 'find_elements_by_name', 'find_elements_by_partial_link_text', 'find_elements_by_tag_name', 'find_elements_by_xpath', 'get_attribute', 'id', 'is_displayed', 'is_enabled', 'is_selected', 'location', 'location_once_scrolled_into_view', 'parent', 'rect', 'send_keys', 'size', 'submit', 'tag_name', 'text', 'value_of_css_property']


About to click 'MyRadio'
Traceback (most recent call last):
  File "myFile.py", line 28, in <module>
    myRadioBtn.click()
  File "C:\Python34\lib\site-packages\selenium\webdriver\remote\webelement.py",line 65, in click
    self._execute(Command.CLICK_ELEMENT)
  File "C:\Python34\lib\site-packages\selenium\webdriver\remote\webelement.py",line 385, in _execute
    return self._parent.execute(command, params)
  File "C:\Python34\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 173, in execute
    self.error_handler.check_response(response)
  File "C:\Python34\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 166, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.ElementNotVisibleException: Message: 'Cannot click on element'

为什么使用Firefox和Chrome驱动程序可以点击此单选按钮，而不是IE？我可以清楚地看到单选按钮是可见的。手动，我可以点击它。那么为什么不能硒？

Answer 1

Selenium Internet Explorer Web驱动程序不是浏览器的本机驱动程序，并且通常在屏幕上查找元素时遇到问题。我怀疑这是你遇到的问题。

Answer 2

首先，尝试将预期条件更改为visibility_of_element_located：

期望检查元素是否存在于DOM的DOM上页面和可见。可见性意味着元素不仅仅是显示但高度和宽度都大于0。

请注意，您不需要再次找到该按钮，它会返回网络元素：

element = WebDriverWait(driver, 10).until(EC.visibility_of_element_located((By.ID, 'MyRadioButtonID')))
element.click()

此外，对于IE，设置较高的implicit wait timeout可能会产生积极的影响：

driver.implicitly_wait(10) # seconds

Answer 3

您应该尝试禁用浏览器本机事件。感谢Jim Evans如此广泛地解释Native event

profile = driver = webdriver.Ie() 
profile.native_events_enabled = False
driver = webdriver.Ie(profile)

Answer 4

您使用的Locators值必须在IE中更改，因为它发生IE的行为与FF和Chrome不同，尝试使用指定给IE的定位器或使用IE可见的定位器

为什么Selenium可以使用Chrome＆amp; amp; Firefox但是IE 9失败了？

4 个答案: