Selenium：每次页面加载时调用方法

Question

I'm trying to throw an exception each time a certain text appears on a page. For this to be practical, a method should check every time a page has finished loading if the exception should be thrown or not. The main problem I'm having right now is with clicks, AKA when a new page is opened as a result of a click on a WebElement.

How can one achieve that custom methods are always called when a page is finished with loading?

Answer 1

Here is the Answer to your Question:

When we use the WebDriver through the default configuration the attribute pageLoadStrategy is set to normal which implies that once the page loading is totally complete the document.readyState is set to complete that is when WebDriver performs the next action as per your script.

Now if you want to be convinced by yourself that the document.readyState is set to complete you can implement the following code block in your script with the help of a EplicitWait for a status log on your console:

IWait<IWebDriver> wait = new OpenQA.Selenium.Support.UI.WebDriverWait(driver, TimeSpan.FromSeconds(30.00));
wait.Until(driver => ((IJavaScriptExecutor)driver).ExecuteScript("return document.readyState").Equals("complete"));

Let me know if this Answers your Question.