gitlab-org--gitlab-foss/spec/frontend/helpers/local_storage_helper_spec.js

28 lines
864 B
JavaScript

import { useLocalStorageSpy } from './local_storage_helper';
describe('block before helper is installed', () => {
it('should leave original localStorage intact', () => {
expect(localStorage.getItem).toEqual(expect.any(Function));
expect(jest.isMockFunction(localStorage.getItem)).toBe(false);
});
});
describe('localStorage helper', () => {
useLocalStorageSpy();
it('mocks localStorage but works exactly like original localStorage', () => {
localStorage.setItem('test', 'testing');
localStorage.setItem('test2', 'testing');
expect(localStorage.getItem('test')).toBe('testing');
localStorage.removeItem('test', 'testing');
expect(localStorage.getItem('test')).toBe(null);
expect(localStorage.getItem('test2')).toBe('testing');
localStorage.clear();
expect(localStorage.getItem('test2')).toBe(null);
});
});