import { cloneDeep } from '../../src/clone-deep';

describe('cloneDeep', () => {

it('should clone null', () => {

const src = null;

expect(cloneDeep(src)).toBeNull();

});

it('should clone undefined', () => {

const src = undefined;

expect(cloneDeep(src)).toBeUndefined();

});

it('should clone an array', () => {

const src = [1, 2, 3, 4];

expect(cloneDeep(src)).toEqual(src);

});

it('should clone an object', () => {

const src = { name: 'John', age: 25 };

expect(cloneDeep(src)).toEqual(src);

});

it('should deep clone nested objects', () => {

const src = { person: { name: 'John', age: 25 } };

const cloned = cloneDeep(src);

expect(cloned).toEqual(src);

expect(cloned.person).not.toBe(src.person);

});

});