37 lines
889 B
JavaScript
37 lines
889 B
JavaScript
const expect = require('expect');
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const {deepClone} = require('./_30s.js');
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test('deepClone is a Function', () => {
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expect(deepClone).toBeInstanceOf(Function);
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});
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const data = {
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a: [],
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b: [1, 2, 3],
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c: [{ foo: 'bar' }],
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d: {},
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e: { a: 'a', b: 'b', c: 'c', d: ['a', 'b', 'c'] },
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f: 1,
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g: true
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};
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const dupe = deepClone(data);
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test('Shallow cloning works', () => {
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expect(data).not.toBe(dupe);
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});
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test('Array shallow cloning edge case works', () => {
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expect(dupe.a).toEqual([]);
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});
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test('Array shallow cloning works', () => {
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expect(data.b).not.toBe(dupe.b);
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});
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test('Array deep cloning works', () => {
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expect(data.c[0]).not.toBe(dupe.c[0]);
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});
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test('Deep cloning works', () => {
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expect(data.d).not.toBe(dupe.d);
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expect(data.e).not.toBe(dupe.e);
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});
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test('Cloning primitives works', () => {
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expect(data.f).toBe(dupe.f);
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expect(data.g).toBe(dupe.g);
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});
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