const expect = require('expect'); const composeRight = require('./composeRight.js'); test('Testing composeRight', () => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape expect(typeof composeRight === 'function').toBeTruthy(); const add = (x, y) => x + y; const square = x => x * x; const addAndSquare = composeRight(add, square); expect(addAndSquare(1, 2)).toBe(9); });