const expect = require('expect'); const maxN = require('./maxN.js'); test('maxN is a Function', () => { expect(maxN).toBeInstanceOf(Function); }); t.deepEqual(maxN([1, 2, 3]), [3], "Returns the n maximum elements from the provided array"); t.deepEqual(maxN([1, 2, 3], 2), [3, 2], "Returns the n maximum elements from the provided array");