const expect = require('expect'); const compose = require('./compose.js'); test('Testing compose', () => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape expect(typeof compose === 'function').toBeTruthy(); const add5 = x => x + 5; const multiply = (x, y) => x * y; const multiplyAndAdd5 = compose(add5, multiply); expect(multiplyAndAdd5(5, 2)).toBe(15); });