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odin-default-js-exercises
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repeatString All done

This commit is contained in:
Mohammed Nabeel 2020-07-18 14:17:50 +03:00
parent 19637d71d4
commit 7ab3796032
2 changed files with 44 additions and 32 deletions
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14
repeatString/repeatString.js
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@ -1,4 +1,16 @@
const repeatString = function() {
const repeatString = function(string, number) {
let result = '';
if (number < 0) {
return 'ERROR';
}
for (let i = 0; i < number; i++) {
result += string;
}
return result;
}

58
repeatString/repeatString.spec.js
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@ -1,33 +1,33 @@
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);
});
xit('works with blank strings', function() {
expect(repeatString('', 10)).toEqual('');
});
it('repeats the string', function() {
expect(repeatString('hey', 3)).toEqual('heyheyhey');
});
it('repeats the string many times', function() {
expect(repeatString('hey', 10)).toEqual('heyheyheyheyheyheyheyheyheyhey');
});
it('repeats the string 1 times', function() {
expect(repeatString('hey', 1)).toEqual('hey');
});
it('repeats the string 0 times', function() {
expect(repeatString('hey', 0)).toEqual('');
});
it('returns ERROR with negative numbers', function() {
expect(repeatString('hey', -1)).toEqual('ERROR');
});
it('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);
});
it('works with blank strings', function() {
expect(repeatString('', 10)).toEqual('');
});
});