28 lines
714 B
JavaScript
28 lines
714 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 a = { foo: 'bar', obj: { a: 1, b: 2 } };
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const b = deepClone(a);
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const c = [{ foo: 'bar' }];
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const d = deepClone(c);
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const e = { edge: [] };
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const f = deepClone(e);
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test('Shallow cloning works', () => {
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expect(a).not.toBe(b);
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});
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test('Deep cloning works', () => {
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expect(a.obj).not.toBe(b.obj);
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});
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test('Array shallow cloning works', () => {
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expect(c).not.toBe(d);
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});
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test('Array deep cloning works', () => {
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expect(c[0]).not.toBe(d[0]);
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});
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test('Array shallow cloning edge case works', () => {
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expect(f.edge).toEqual([]);
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});
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