How to test chrome extensions?

Question

Is there a good way to do this? I\'m writing an extension that interacts with a website as a content script and saves data using localstorage. Are there any tools, framework

Answer 1

While sinon.js seems to work great, you can also just use plain Jasmine and mock the Chrome callbacks you need. Example:

Mock

chrome = {
  runtime: {
    onMessage : {
      addListener : function() {}
    }
  }
}

Test

describe("JSGuardian", function() {

  describe("BlockCache", function() {

    beforeEach(function() {
      this.blockCache = new BlockCache();
    });

    it("should recognize added urls", function() {
      this.blockCache.add("http://some.url");
      expect(this.blockCache.allow("http://some.url")).toBe(false);
    });
} // ... etc

Just modify the default SpecRunner.html to run your code.