54 lines
1.1 KiB
JavaScript
54 lines
1.1 KiB
JavaScript
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import { expect } from 'chai';
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import freeze from '../lib/freeze';
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describe('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 obj = {};
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freeze(obj);
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expect(Object.isFrozen(obj)).to.be.true;
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});
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it('freezes nested objects', () => {
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const obj = { foo: { bar: 3 } };
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freeze(obj);
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expect(Object.isFrozen(obj.foo)).to.be.true;
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});
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it('freezes nested arrays', () => {
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const obj = [[0]];
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freeze(obj);
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expect(Object.isFrozen(obj)).to.be.true;
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expect(Object.isFrozen(obj[0])).to.be.true;
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});
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it('ignores functions', () => {
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const obj = { foo: () => 1 };
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freeze(obj);
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expect(Object.isFrozen(obj.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 obj = { foo: {} };
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Object.freeze(obj);
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freeze(obj);
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expect(Object.isFrozen(obj.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 obj = {};
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freeze(obj);
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expect(Object.isFrozen(obj)).to.be.false;
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});
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});
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