Comparing Selenium and Watir for JavaScript Testing within a Rails environment

In our experience with Rails apps, we have found success using RSpec and Cucumber. While Webrat is effective for non-AJAX interactions, we are now gearing up to write tests for our Javascript.

We have used Selenium support in Webrat before, but I am interested in hearing about others' experiences with using Watir alongside Cucumber. What are the advantages and disadvantages of using Watir compared to Selenium?

Answer №1

Being the creator of OpenQA and Selenium RC, my bias obviously leans towards considering Selenium a solid choice. Our recent release of 1.0 beta 2 brings us closer to a final 1.0 version.

That being said, Watir/FireWatir is also a reliable option. While Adam is correct in noting that WebDriver will eventually merge with Selenium to form Selenium 2.0, he is mistaken in suggesting that Watir does not utilize native hooks. If Watir were just a duplicate of Selenium using JavaScript injection, I would not recommend it.

However, because Watir uses native hooks, it has capabilities that Selenium currently lacks. Although it may support fewer browsers, its functionality in the main supported browser (IE) goes deeper and allows for control beyond just the page itself.

In conclusion: both options are viable, Selenium remains a strong contender, and sticking with Selenium for a bit longer will ultimately provide you with the best features from both worlds through WebDriver/Selenium 2.0.

Answer №2

My experience with using Cucumber alongside Celerity in JRuby has been quite positive.

Celerity functions as a headless browser that wraps HtmlUnit and offers a Watir-compatible API, making it suitable for JavaScript and AJAX testing.

The fact that Celerity is headless contributes to its speed and seamless integration into Continuous Integration workflows.

Given that Celerity shares an API with Watir, transitioning between the two tools is relatively straightforward, despite some minor challenges - overall, the benefits outweigh the drawbacks.

Answer №3

In my opinion, Watir seemed to have a smoother interface but was not as practical. It primarily focuses on automating Internet Explorer tasks, with somewhat unreliable support for Firefox. (I haven't looked into FireWatir recently, so it may have gotten better.)

There are some initial trials of using Selenium-RC with Watir. This combination could potentially offer the benefits of both systems.

Answer №4

If you're looking for something new to try, consider experimenting with WebDriver. It's on track to be integrated into Selenium in the near future and is compatible with JRuby.

What sets WebDriver apart from tools like Selenium, Sahi, or Watir is its unique approach to browser control - it operates natively rather than relying on JavaScript, which helps avoid many common issues experienced by other solutions.

Answer №5

My experience with Watir was limited to testing a Java application, without integrating it with cucumber. We encountered difficulties in accurately determining when a page had fully loaded. Ultimately, we had to scour online forums for insights before resolving the issue. Despite this hiccup, overall our experience with Watir was satisfactory.

Answer №6

WebDriver will be incorporated into Watir 2.0 as well.

Answer №7

Those interested in integrating Watir with Rails 3 can do so easily.

All you need is the 'watir-webdriver-rails' gem, which was developed by yours truly!

Answer №9

Consider using QUnit or Jasmine for unit testing your JavaScript code. It could help reduce the need for writing extensive full-stack tests in tools like cucumber, selenium, capybara, etc.

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