const expect = require('expect'); const prettyBytes = require('./prettyBytes.js'); test('Testing prettyBytes', () => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape expect(typeof prettyBytes === 'function').toBeTruthy(); expect(prettyBytes(1000)).toBe('1 KB'); expect(prettyBytes(-27145424323.5821, 5)).toBe('-27.145 GB'); expect(prettyBytes(123456789, 3, false)).toBe('123MB'); });