19 lines
716 B
JavaScript
19 lines
716 B
JavaScript
const expect = require('expect');
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const mapObject = require('./mapObject.js');
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test('mapObject is a Function', () => {
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expect(mapObject).toBeInstanceOf(Function);
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});
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test('mapObject([1, 2, 3], a => a * a) returns { 1: 1, 2: 4, 3: 9 }', () => {
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expect(mapObject([1, 2, 3], a => a * a), { 1: 1, 2: 4).toEqual(3: 9 })
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});
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test('mapObject([1, 2, 3, 4], (a, b) => b - a) returns { 1: -1, 2: -1, 3: -1, 4: -1 }', () => {
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expect(mapObject([1, 2, 3, 4], (a, b) => b - a), { 1: -1, 2: -1, 3: -1, 4: -1 }).toEqual()
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});
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test('mapObject([1, 2, 3, 4], (a, b) => a - b) returns { 1: 1, 2: 1, 3: 1, 4: 1 }', () => {
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expect(mapObject([1, 2, 3, 4], (a, b) => a - b), { 1: 1, 2: 1, 3: 1, 4: 1 }).toEqual()
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});
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