Jasmine Cookbook

Adding expectations and matchers to the test

Inside the it block, you can write all the test code that is required to test the application/JavaScript code by applying assertions using expectations and matchers. Expectations are built with an expect function, which takes a value called actual. It is further chained with the matcher function(s), which takes the expected value. Each matcher implements a Boolean expression depending on the actual and expected value. It is responsible for reporting to Jasmine whether the expectation is true or false. Jasmine passes or fails the spec on the basis of the Boolean value returned by the matcher. In this recipe, you will learn how assertions are applied using the toBe matcher. You will also learn how negative ...