Rocket.Chat/packages/apps-engine/tests/server/misc/Utilities.spec.ts

import { Expect, Test } from 'alsatian';

import { Utilities } from '../../../src/server/misc/Utilities';

export class UtilitiesTestFixture {
	private expectedInfo = {
		id: '614055e2-3dba-41fb-be48-c1ff146f5932',
		name: 'Testing App',
		nameSlug: 'testing-app',
		description: 'A Rocket.Chat Application used to test out the various features.',
		version: '0.0.8',
		requiredApiVersion: '>=0.9.6',
		author: {
			name: 'Bradley Hilton',
			homepage: 'https://github.com/RocketChat/Rocket.Chat.Apps-ts-definitions',
			support: 'https://github.com/RocketChat/Rocket.Chat.Apps-ts-definitions/issues',
		},
		classFile: 'TestingApp.ts',
		iconFile: 'testing.jpg',
	};

	@Test()
	public testDeepClone() {
		Expect(() => Utilities.deepClone(this.expectedInfo)).not.toThrow();
		const info = Utilities.deepClone(this.expectedInfo);

		Expect(info).toEqual(this.expectedInfo);
		info.name = 'New Testing App';
		Expect(info.name).toEqual('New Testing App');
		Expect(info.author.name).toEqual(this.expectedInfo.author.name);
	}

	@Test()
	public testDeepFreeze() {
		Expect(() => {
			this.expectedInfo.name = 'New Testing App';
		}).not.toThrow();
		Expect(() => {
			this.expectedInfo.author.name = 'Bradley H';
		}).not.toThrow();
		Expect(this.expectedInfo.name).toEqual('New Testing App');
		Expect(this.expectedInfo.author.name).toEqual('Bradley H');

		Expect(() => Utilities.deepFreeze(this.expectedInfo)).not.toThrow();

		Expect(() => {
			this.expectedInfo.name = 'Old Testing App';
		}).toThrow();
		Expect(() => {
			this.expectedInfo.author.name = 'Bradley';
		}).toThrow();
		Expect(this.expectedInfo.name).toEqual('New Testing App');
		Expect(this.expectedInfo.author.name).toEqual('Bradley H');
	}

	@Test()
	public testDeepCloneAndFreeze() {
		Expect(() => Utilities.deepCloneAndFreeze({})).not.toThrow();

		const info = Utilities.deepCloneAndFreeze(this.expectedInfo);
		Expect(info).toEqual(this.expectedInfo);
		Expect(info).not.toBe(this.expectedInfo);
		Expect(info.author.name).toEqual(this.expectedInfo.author.name);
		Expect(info.author.name).toEqual('Bradley H'); // was changed on testDeepFreeze
		Expect(() => {
			info.author.name = 'Bradley Hilton';
		}).toThrow();
	}
}