const test = require('tape'); const countBy = require('./countBy.js'); test('Testing countBy', (t) => { //For more information on all the methods supported by tape //Please go to https://github.com/substack/tape t.true(typeof countBy === 'function', 'countBy is a Function'); //t.deepEqual(countBy(args..), 'Expected'); //t.equal(countBy(args..), 'Expected'); //t.false(countBy(args..), 'Expected'); //t.throws(countBy(args..), 'Expected'); t.end(); });