import { sortedDeepCloneWithoutNulls } from './object'; describe('objects', () => { const value = { hello: null, world: { deeper: 10, foo: null, arr: [null, 1, 'hello'], }, bar: undefined, simple: 'A', }; it('returns a clean copy', () => { const copy = sortedDeepCloneWithoutNulls(value); expect(copy).toMatchObject({ world: { deeper: 10, arr: [null, 1, 'hello'], }, simple: 'A', }); expect(value.hello).toBeNull(); expect(value.world.foo).toBeNull(); expect(value.bar).toBeUndefined(); }); });