How to Speed Up Selenium Tests When Slow Scripts Are Holding You Back?

Selenium Waiting for Slow Scripts: Strategies and Solutions

Selenium's default behavior is to wait until a page is fully loaded, which can cause delays when encountering slow scripts. This issue becomes even more apparent when dealing with pages that perpetually attempt to load dead or unresponsive scripts. To overcome this challenge, we can modify Selenium's page loading strategy.

Configuring pageLoadStrategy

Selenium offers three options for pageLoadStrategy:

• normal: Waits for the entire page to load (default).
• eager: Waits until the page is interactive (elements are visible and can respond to events).
• none: Does not wait for any page loading at all.

By configuring pageLoadStrategy, we can control how long Selenium waits for page elements to become available.

Example: Configuring pageLoadStrategy for Firefox

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

caps = DesiredCapabilities().FIREFOX
caps["pageLoadStrategy"] = "eager"  # Interactive
driver = webdriver.Firefox(desired_capabilities=caps, executable_path=r'C:\path\to\geckodriver.exe')
driver.get("http://google.com")

Example: Configuring pageLoadStrategy for Chrome

from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities

caps = DesiredCapabilities().CHROME
caps["pageLoadStrategy"] = "none"  # Do not wait
driver = webdriver.Chrome(desired_capabilities=caps, executable_path=r'C:\path\to\chromedriver.exe')
driver.get("http://google.com")

Note: The "eager" pageLoadStrategy value is currently under development for ChromeDriver. Refer to the documentation for updates on its status.

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