How Can I Reliably Check for Web Page Load Completion in Selenium?

Selenium: Checking Web Page Load Completion

Many developers strive to validate the complete loading of a web page in Selenium for seamless and accurate testing. However, unlike explicit element visibility checks, there's no ready-made generic function to ascertain page load completion.

Tried Codes

You attempted to check with this code:

new WebDriverWait(firefoxDriver, pageLoadTimeout).until(
          webDriver -> ((JavascriptExecutor) webDriver).executeScript("return document.readyState").equals("complete"));

But, as you've observed, this approach has limitations.

PageLoadStrategy

While pageLoadStrategy can be set to "normal" to ensure 'document.readyState' equals "complete," it's not foolproof. JavaScript and Ajax calls may still be outstanding, requiring further measures.

Indefinite Waits

Approaches like waiting for "jQuery.active == 0" or using WebDriverWait with titleContains() involve indefinite wait times.

Visible Element Waits

A granular method is to employ WebDriverWait with visibilityOfElementLocated(). This makes your program wait specifically for the visibility of the desired element, providing a more precise check that it's fully loaded.

Additional References

For more insights, refer to these resources:

• Selenium IE WebDriver only works while debugging
• Selenium how to manage wait for page load?

Conclusion

Although there's no generic function to check page load completion in Selenium, by employing the techniques discussed, such as PageLoadStrategy, "jQuery.active == 0," indefinite waits, and visible element waits, you can achieve an effective evaluation of page load progress.

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