const expect = require('expect'); const overArgs = require('./overArgs.js'); test('Testing overArgs', () => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape expect(typeof overArgs === 'function').toBeTruthy(); const square = n => n * n; const double = n => n * 2; const fn = overArgs((x, y) => [x, y], [square, double]); expect(fn(9, 3)).toEqual([81, 6]); });