18 lines
711 B
JavaScript
18 lines
711 B
JavaScript
const expect = require('expect');
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const join = require('./join.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'], ',', '&'), "pen,pineapple).toEqual(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'], ','), "pen,pineapple,apple).toEqual(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']), "pen,pineapple,apple).toEqual(pen")
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});
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