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Add to SafariWhen comparing CasperJS vs BugBug.io, the Slant community recommends CasperJS for most people. In the question“What are the best Javascript end-to-end testing tools?” CasperJS is ranked 10th while BugBug.io is ranked 11th. The most important reason people chose CasperJS is:
There are times where you don't want to open up a browser for screencaps, that is where CasperJS comes to use, it can render the page using its own rendering engine and take and save a screenshot for you, all via the commandline
Question Ranking
Pros
Pro Allows screenshots (either the full page or parts of it) if performing UI testing
There are times where you don't want to open up a browser for screencaps, that is where CasperJS comes to use, it can render the page using its own rendering engine and take and save a screenshot for you, all via the commandline
Pro Easy to understand
Pro Written in JavaScript
Since all webdevs know JS, the start-up time of learning the framework will be reduced to zero, as your team can be productive from day one.
Pro Easily integrates with other applications
Due to the simplicity of the framework, not only other libraries can be built with it, but it can be integrated with any web application as well.
Pro Can run javascript code inside pages being tested
Can execute arbitrary javascript or load external JS into the page being tested. This feature is possible due to the presence of a rendering engine, and helps you see the effects of any client side scripting during your tests.
Pro Reusable components
You are able to group the steps in tests into reusable components to manage and repair them easier. As a bonus, you can see all test flows on a single project graph.
Pro Great UI & UX
A design for a high efficiency
Pro Debuggability
You can run tests and debug directly from a Chrome browser, where you have access to DevTools.
Cons
Con Not for unit testing but rather UI testing
These are two extremely different concepts. CasperJS should be removed from this list
Con Cannot guarantee 100% accurate Webkit-based browser screenshots
QtWebKit is the rendering engine used by CasperJS. Keep in mind this is NOT the same rendering engine as Chrome; hence, if you want to be 100% sure of the results, you must run a Webkit browser (such as Chrome) yourself.
