import {expect} from 'chai'; import {SadGreeter} from '../src/SadGreeter'; describe('SadGreeter', () => { it('should greet', () => { expect(SadGreeter.hello()).to.be.a('string'); expect(SadGreeter.hello()).to.equal('Sad hello...'); }); it('should instantiate and say hello too', () => { let obj = new SadGreeter(); expect(obj.greet()).to.be.a('string'); expect(obj.greet()).to.equal('Hello from instance...'); }); });