66 lines
1.5 KiB
JavaScript
66 lines
1.5 KiB
JavaScript
import { expect } from 'chai';
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import u from '../lib';
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describe('u.freeze', () => {
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afterEach(() => {
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delete process.env.NODE_ENV;
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});
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it('freezes objects', () => {
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const object = {};
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u.freeze(object);
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expect(Object.isFrozen(object)).to.be.true;
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});
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it('freezes nested objects', () => {
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const object = { foo: { bar: 3 } };
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u.freeze(object);
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expect(Object.isFrozen(object.foo)).to.be.true;
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});
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it('freezes nested arrays', () => {
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const object = [[0]];
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u.freeze(object);
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expect(Object.isFrozen(object)).to.be.true;
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expect(Object.isFrozen(object[0])).to.be.true;
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});
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it('ignores functions', () => {
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const object = { foo: () => 1 };
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u.freeze(object);
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expect(Object.isFrozen(object.foo)).to.be.false;
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});
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it('does not freeze children if the parent is already frozen', () => {
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const object = { foo: {} };
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Object.freeze(object);
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u.freeze(object);
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expect(Object.isFrozen(object.foo)).to.be.false;
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});
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it('does not freeze in production', () => {
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process.env.NODE_ENV = 'production';
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const object = {};
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u.freeze(object);
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expect(Object.isFrozen(object)).to.be.false;
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});
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it('handles null objects', () => {
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const object = { foo: null };
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u.freeze(object);
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expect(Object.isFrozen(object)).to.be.true;
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});
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it('returns the same object', () => {
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const object = {};
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const result = u.freeze(object);
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expect(result).to.equal(object);
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});
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});
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