How to verify the presence of a script on multiple web pages?

Question

I have a set of web pages where I need to verify that a certain script is present. A have a lot of pages to verify so I would like to automate this part of testing. How can a create a sequence with selenium (or any other solution) where I have something of an array of webpages which is used for repetition of the same check through all these webpages? In other words, how can I cover a set of pages with one test? Because the check is the same for all of the pages.

Answer 1

Most programming languages support list of items and loops, some pseudo code:

• Create a list of websites/urls to visit (e.g. array)
• Start WebDriver
• Foreach url in list (e.g. a loop to go over each item in the list)
  • Visit the page (e.g. driver.get(url))
  • Get the page source (e.g. driver.page_source)
  • Check the page source contains something unique to the script you are looking for (e.g. page_source.find("something unique"))
  • If script not found log url

Answer 2

If it's an externally downloaded script you can intercept the traffic and look for the file, it's easy with Puppeteer and less straightforward with other frameworks. See example here