A guide on viewing the output of an AJAX request using Python and Selenium

Currently experimenting with Selenium testing on a Django website. I recently implemented a feature to track javascript errors through Google Analytics. How can I create a test to verify that when a javascript error occurs, an AJAX request is triggered and sent to Analytics?

Answer №1

To identify errors in AJAX using your JavaScript error handler and then setting a global JavaScript flag variable is a useful technique. This allows you to access any JavaScript variables in Selenium. For instance, you can implement a function like the following to wait 10 seconds and check if a JavaScript variable has been set to true:

def check_javascript_status(browser):
    """Verify if the key JavaScript flag is indicating that all jQuery functions are operational."""
    timeout = time.time() + 10

    while time.time() < timeout:
        flag = browser.evaluate_script("window.javascriptReady == true")
        if flag:
            return
        time.sleep(0.1)

    raise AssertionError("The window.javascriptReady JS flag was not received")

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