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