Exceptions – Selenium Python
Exceptions in Selenium Python are the errors that occur when one of method fails or an unexpected event occurs. All instances in Python must be instances of a class that derives from BaseException. Two exception classes that are not related via subclassing are never equivalent, even if they have the same name. The built-in exceptions can be generated by the interpreter or built-in functions. This article revolves around multiple exceptions that can occur during the run of a Selenium program.
Let’s demonstrate Exception by trying to find an element that doesn’t exist and click it at geeksforgeeks.org
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Now, let’s run this program, it first open geeksforgeeks.org and then raise exception – selenium.common.exceptions.NoSuchElementException, which means that element doesn’t exists on the website.
Exceptions in Selenium Python
Exceptions are of primary use when you are writing development ready code especially which is at a high risk of causing certain type of exception. So here is list of all exceptions in Selenium Python.
|ElementClickInterceptedException||The Element Click command could not be completed because the element receiving the events is obscuring the element that was requested clicked.|
|ElementNotInteractableException||Thrown when an element is present in the DOM but interactions with that element will hit another element do to paint order|
|ElementNotSelectableException||Thrown when trying to select an unselectable element.|
|ElementNotVisibleException||Thrown when an element is present on the DOM, but it is not visible, and so is not able to be interacted with.|
|ErrorInResponseException||Thrown when an error has occurred on the server side.|
|ImeActivationFailedException||Thrown when activating an IME engine has failed.|
|ImeNotAvailableException||Thrown when IME support is not available.|
|InsecureCertificateException||Navigation caused the user agent to hit a certificate warning, which is usually the result of an expired or invalid TLS certificate.|
|InvalidArgumentException||The arguments passed to a command are either invalid or malformed.|
|InvalidCookieDomainException||Thrown when attempting to add a cookie under a different domain than the current URL.|
|InvalidCoordinatesException||The coordinates provided to an interactions operation are invalid.|
|InvalidElementStateException||Thrown when a command could not be completed because the element is in an invalid state.|
|InvalidSelectorException||Thrown when the selector which is used to find an element does not return a WebElement.|
|InvalidSessionIdException||Occurs if the given session id is not in the list of active sessions, meaning the session either does not exist or that it’s not active.|
|InvalidSwitchToTargetException||Thrown when frame or window target to be switched doesn’t exist.|
|MoveTargetOutOfBoundsException||Thrown when the target provided to the ActionsChains move() method is invalid, i.e. out of document.|
|NoAlertPresentException||Thrown when switching to no presented alert.
|NoSuchAttributeException||Thrown when the attribute of element could not be found.|
|NoSuchCookieException||No cookie matching the given path name was found amongst the associated cookies of the current browsing context’s active document.|
|NoSuchFrameException||Thrown when frame target to be switched doesn’t exist.|
|NoSuchWindowException||Thrown when window target to be switched doesn’t exist.|
|StaleElementReferenceException||Thrown when a reference to an element is now “stale”.|
|TimeoutException||Thrown when a command does not complete in enough time.|
|UnableToSetCookieException||Thrown when a driver fails to set a cookie.|
|UnexpectedAlertPresentException||Thrown when an unexpected alert is appeared.|
|UnexpectedTagNameException||Thrown when a support class did not get an expected web element|