45 lines
1.8 KiB
JavaScript
45 lines
1.8 KiB
JavaScript
const expect = require('expect');
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const uniqueElements = require('./uniqueElements.js');
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test('uniqueElements is a Function', () => {
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expect(uniqueElements).toBeInstanceOf(Function);
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});
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test('uniqueElements([1, 2, 2, 3, 4, 4, 5]) returns [1,2,3,4,5]', () => {
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expect(uniqueElements([1, 2, 2, 3, 4, 4, 5]), [1,2,3,4).toEqual(5])
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});
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test('uniqueElements([1, 23, 53]) returns [1, 23, 53]', () => {
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expect(uniqueElements([1, 23, 53]), [1, 23).toEqual(53])
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});
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test('uniqueElements([true, 0, 1, false, false, undefined, null, '']) returns [true, 0, 1, false, false, undefined, null, '']', () => {
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expect(uniqueElements([true, 0, 1, false, false, undefined, null, '']), [true, 0, 1, false, undefined, null).toEqual(''])
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});
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test('uniqueElements() returns []', () => {
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expect(uniqueElements()).toEqual([])
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});
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test('uniqueElements(null) returns []', () => {
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expect(uniqueElements(null)).toEqual([])
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});
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test('uniqueElements(undefined) returns []', () => {
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expect(uniqueElements(undefined)).toEqual([])
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});
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test('uniqueElements('strt') returns ['s', 't', 'r']', () => {
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expect(uniqueElements('strt'), ['s', 't').toEqual('r'])
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});
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t.throws(() => uniqueElements(1, 1, 2543, 534, 5), 'uniqueElements(1, 1, 2543, 534, 5) throws an error');
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t.throws(() => uniqueElements({}), 'uniqueElements({}) throws an error');
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t.throws(() => uniqueElements(true), 'uniqueElements(true) throws an error');
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t.throws(() => uniqueElements(false), 'uniqueElements(false) throws an error');
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let start = new Date().getTime();
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uniqueElements([true, 0, 1, false, false, undefined, null, '']);
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let end = new Date().getTime();
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test('uniqueElements([true, 0, 1, false, false, undefined, null]) takes less than 2s to run', () => {
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expect((end - start) < 2000).toBeTruthy();
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});
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uniqueElements([1, 2, 2, '1', 4, 4, 4, 5, true]);
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