Files
30-seconds-of-code/test/join.test.js
Christian C. Salvadó 83a6a6ea32 [ENHANCEMENT] Properly configure eslint to work with jest (#988)
* chore: make aware eslint that we use jest

By setting up the jest environment, we no longer need to declare the
'test' global in the configuration.

* chore: don't need to import expect, it's a jest environment global

* chore: don't need to import expect when creating undefined test
2019-06-18 08:34:45 +03:00

15 lines
667 B
JavaScript

const {join} = require('./_30s.js');
test('join is a Function', () => {
expect(join).toBeInstanceOf(Function);
});
test('Joins all elements of an array into a string and returns this string', () => {
expect(join(['pen', 'pineapple', 'apple', 'pen'], ',', '&')).toEqual('pen,pineapple,apple&pen');
});
test('Joins all elements of an array into a string and returns this string', () => {
expect(join(['pen', 'pineapple', 'apple', 'pen'], ',')).toEqual('pen,pineapple,apple,pen');
});
test('Joins all elements of an array into a string and returns this string', () => {
expect(join(['pen', 'pineapple', 'apple', 'pen'])).toEqual('pen,pineapple,apple,pen');
});