Day5-7测试积点任务
问题：元素不能定位的时候 直接退出报错，is_display() 这样的函数怎么使用？
<font face="微软雅黑" size="3">def test_findkeyboard(self):
el = self.driver.find_element_by_class_name('UIAKeyboard')
print(el.is_displayed())
执行以上test的时候直接报错
An element could not be located on the page using the given search parameters.</font>
求助下 is_display()这样的函数应该怎么使用
<font face="微软雅黑" size="3">/usr/bin/python "/Applications/PyCharm CE.app/helpers/pycharm/utrunner.py" /Users/Alfred/sample-code-master/sample-code/examples/python/sapi_login_test.py::SapiHomePageTests::test_findkeyboard true
Testing started at 下午5:57 ...
Error
Traceback (most recent call last):
File "/Users/Alfred/sample-code-master/sample-code/examples/python/sapi_login_test.py", line 44, in test_findkeyboard
el = self.driver.find_element_by_class_name('UIAKeyboard')
File "/Library/Python/2.7/site-packages/selenium-2.41.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 343, in find_element_by_class_name
return self.find_element(by=By.CLASS_NAME, value=name)
File "/Library/Python/2.7/site-packages/selenium-2.41.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 655, in find_element
{'using': by, 'value': value})['value']
File "/Library/Python/2.7/site-packages/selenium-2.41.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 166, in execute
self.error_handler.check_response(response)
File "build/bdist.macosx-10.9-intel/egg/appium/webdriver/errorhandler.py", line 29, in check_response
raise wde
NoSuchElementException: Message: u'An element could not be located on the page using the given search parameters.' </font>
查找出错的位置，然后看看上下文的引用 第一个问题：没有找到元素而导致脚本退出，可以使用Try Catch来捕获异常，从而可以继续下面的测试
第二个问题： is_displayed()应该就是这样使用的，可以判断元素对用户是否可见，但是根据你的报错信息，这个元素未找见并导致脚本执行失败，所以el.is_displayed()自然是不会执行 https://testerhome.com/topics/1594?locale=en可以做一下参考 is_displayed() 是布尔函数，只是返回true or false 判断下元素是否出来再进行后续操作
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