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']