4 getItem: key => (key in storage ? storage[key] : null),
5 setItem: (key, value) => (storage[key] = value || ''),
6 removeItem: key => delete storage[key],
7 clear: () => (storage = {})
11 Object.defineProperty(window, 'localStorage', { value: mock() });
12 Object.defineProperty(window, 'sessionStorage', { value: mock() });
13 Object.defineProperty(window, 'getComputedStyle', {
14 value: () => ['-webkit-appearance'],