css-notes/13. Jasmine/README.md

Test Drive Development

npm install jasmine -g

multBy2.js:

module.exports = (value) => {
    return value * 2;
}

test.js:

const multBy2 = require('./multBy2.js');

describe("multBy2", function(){
    it("should multiply a value by 2", function(){
        expect(multBy2(2)).toBe(4)
    })
    it("should return 0 when passed 0", function(){
        expect(multBy2(0)).toBe(1)
    })
})

jasmine test.js