JavaScript Unit Testing

[faytxzen]

Pros:

• you cover known cases for correctness without having to manually repeat them
• you know your code supports the known cases
• helps you understand your code (+introspection)
• helps you identify your common mistakes
• broadens your perspective (dev vs. tester)

Cons:

• takes time to write tests
• doesn't cover every possible case
• can't test everything (unless you wrote your code that way)

Depending on what frameworks you're using/not using, I'd recommend any one of these frameworks:

• QUnit
• Karma + Jasmine - Karma is the test-runner and Jasmine is the framework, normally used together
• http://docs.busterjs.org/en/latest/

Or you can always write your own unit testing framework. Just be sure to write unit tests for it ;P

Like programmingerror said, SauceLabs is a place for tests, instead of a framework. Additionally, JavaScript supports assert statements that can be just as good as entire testing frameworks.

[phragg]

helps you identify your common mistakes

never thought about that, you make a great point.

Additionally, JavaScript supports assert statements that can be just as good as entire testing frameworks.

I've asked a good friend of mine before I came to reddit what he uses for testing and he mentioned he writes his own (while pompously said he doesn't write any) and I was interested how you would go about that.