text: import {expect} from 'chai';
  import Foo from '../src/foo';
  
  describe('Foo', () => {
  
    let foo;
  
    beforeEach(() => foo = new Foo());
  
    describe('foo()', () => {
      it('returns "bar"', () => {
        expect(foo.foo()).to.equal('bar');
      });
    });
  })
  