Download An Introduction to Testing Web Applications with twill and by C. Brown, Gheorghe Gheorghiu, Jason Huggins PDF

By C. Brown, Gheorghe Gheorghiu, Jason Huggins

This brief minimize is an creation to construction computerized net assessments utilizing instruments, twill and Selenium. twill is a straightforward net scripting language that may be used to automate net checks, whereas Selenium is an online trying out framework that runs in any browser and will be used to check complicated sites that make wide use of JavaScript.
The top solution to use this brief minimize is to run during the examples. we predict that inside of an hour you can begin writing your individual useful checks in both twill or Selenium, and inside an afternoon you are going to comprehend so much, if no longer all, of the probabilities and the constraints of those instruments.

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Extra resources for An Introduction to Testing Web Applications with twill and Selenium

Sample text

To do so, you need to know the name or ID of the form element, though; these are 'choice' and 'choice1', respectively. So, let's select one of the values, and then 'submit' the form. twill script: formvalue 1 choice yes submit show This will select a form value, submit the form, and show the resulting HTML. Try running it. twill ...

  • yes -- 2 votes
  • no -- 1 vote
  • maybe -- 0 votes

... ) 50 51 Try running the script a few times and verify by eye that the "yes" count increases by one each time.

Perhaps I was guilty of a little premature optimization at the time, but I believed that doing an "add 1 row" operation in JavaScript would involve far less code to implement and would also scale better. One reason we were working on the new system was that the previous system was really slow, so I figured it was part of my mandate to fix this. After all, if JavaScript could add a row for me, the server wouldn't get hit as often; fewer unnecessary hits to the server means a faster, more scalable, more responsive app.


  • yes -- 1 votes
  • no -- 0 vote
  • maybe -- 0 votes
  • 51 52

... Yep, the votes were properly zeroed! To make this a fully automated test, all we need to do is add a few assertions to the end of the twill script: go /polls showlinks follow India showforms formvalue 1 choice yes submit show find "yes -- 1 vote" find "no -- 0 votes" find "maybe -- 0 votes" And there we are! A fully automated test! Try running it, both with and without running reset-counts first; it should fail unless you run reset-counts, of course.

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