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What is a "test runner"? A test runner is something that runs your tests. In my previous blog post on the subject, we wrote an HTML file which then contained references to the library & scripts to run. By opening that HTML file in a web browser, we ran our tests. In this case, the test runner was the browser itself, and the HTML file was a wrapper for your tests. Having a browser as a test runner is good, because you are then testing your code in that specific browser. However, it is tedious work to open up the HTML wrapper in each and every browser you have available. Testing takes ages this way. What would be better is some sort of "thing" that can run your test code in a lot of browsers, preferably in parallel, with as little effort as possible. That's where JsTestDriver comes in sight. |
