const repeatString = require('./repeatString') describe('repeatString', function() { it('repeats the string', function() { expect(repeatString('hey', 3)).toEqual('heyheyhey'); }); xit('repeats the string many times', function() { expect(repeatString('hey', 10)).toEqual('heyheyheyheyheyheyheyheyheyhey'); }); xit('repeats the string 1 times', function() { expect(repeatString('hey', 1)).toEqual('hey'); }); xit('repeats the string 0 times', function() { expect(repeatString('hey', 0)).toEqual(''); }); xit('returns ERROR with negative numbers', function() { expect(repeatString('hey', -1)).toEqual('ERROR'); }); xit('repeats the string a random amount of times', function () { /*The number is generated by using Math.random to get a value from between 0 to 1, when this is multiplied by 1000 and rounded down with Math.floor it equals a number between 0 to 999 (this number will change everytime you run the test).*/ const number = Math.floor(Math.random() * 1000) /*The .match(/((hey))/g).length is a regex that will count the number of heys in the result, which if your function works correctly will equal the number that was randomaly generated. */ expect(repeatString('hey', number).match(/((hey))/g).length).toEqual(number); }); });