const expect = require('expect'); const sortedIndex = require('./sortedIndex.js'); test('Testing sortedIndex', () => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape expect(typeof sortedIndex === 'function').toBeTruthy(); expect(sortedIndex([5, 3, 2, 1], 4)).toBe(1); expect(sortedIndex([30, 50], 40)).toBe(1); });