const expect = require('expect'); const renameKeys = require('./renameKeys.js'); test('Testing renameKeys', () => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape expect(typeof renameKeys === 'function').toBeTruthy(); const obj = { name: 'Bobo', job: 'Front-End Master', shoeSize: 100 }; const renamedObj = renameKeys({ name: 'firstName', job: 'passion' }, obj); expect(renamedObj).toEqual({ firstName: 'Bobo', passion: 'Front-End Master', shoeSize: 100 }); });