import { count, config, loadCache } from '../../lib/browser-storage'; import { nextPrefix, createCache, reset, cachePrefix, cacheVersion, versionKey, countKey, } from '../../lib/browser-storage/mock'; describe('Testing mocked localStorage', () => { const provider = ''; it('No usable cache', () => { reset({}); // Config before tests expect(config).toEqual({ local: true, session: true, }); expect(count).toEqual({ local: 0, session: 0, }); // Attempt to load loadCache(); // Everything should be disabled expect(config).toEqual({ local: false, session: false, }); // Nothing should have loaded expect(count).toEqual({ local: 0, session: 0, }); }); it('Empty localStorage', () => { reset({ localStorage: createCache(), }); // Config before tests expect(config).toEqual({ local: true, session: true, }); expect(count).toEqual({ local: 0, session: 0, }); // Attempt to load loadCache(); // sessionStorage should be disabled expect(config).toEqual({ local: true, session: false, }); // Nothing should have loaded expect(count).toEqual({ local: 0, session: 0, }); }); it('Restricted localStorage', () => { const prefix = nextPrefix(); const cache = createCache(); // Add one item cache.setItem(versionKey, cacheVersion); cache.setItem(countKey, '1'); cache.setItem( cachePrefix + '0', JSON.stringify({ cached: Date.now(), provider, data: { prefix: prefix, icons: { foo: { body: '', }, }, }, }) ); // Prevent reading and writing cache.canRead = false; cache.canWrite = false; // Set cache and test it reset({ localStorage: cache, sessionStorage: cache, }); // Config before tests expect(config).toEqual({ local: true, session: true, }); expect(count).toEqual({ local: 0, session: 0, }); // Attempt to load loadCache(); // Everything should be disabled because read-only mock throws errors expect(config).toEqual({ local: false, session: false, }); // Nothing should have loaded expect(count).toEqual({ local: 0, session: 0, }); }); it('localStorage with one item', () => { const prefix = nextPrefix(); const cache = createCache(); // Add one icon set cache.setItem(versionKey, cacheVersion); cache.setItem(countKey, '1'); cache.setItem( cachePrefix + '0', JSON.stringify({ cached: Date.now(), provider, data: { prefix: prefix, icons: { foo: { body: '', }, }, }, }) ); // Set cache and test it reset({ localStorage: cache, }); // Config before tests expect(config).toEqual({ local: true, session: true, }); expect(count).toEqual({ local: 0, session: 0, }); // Attempt to load loadCache(); // sessionStorage should be disabled expect(config).toEqual({ local: true, session: false, }); // One item should be in localStorage expect(count).toEqual({ local: 1, session: 0, }); }); it('localStorage and sessionStorage', () => { reset({ localStorage: createCache(), sessionStorage: createCache(), }); // Config before tests expect(config).toEqual({ local: true, session: true, }); expect(count).toEqual({ local: 0, session: 0, }); // Attempt to load loadCache(); // Everything should be working expect(config).toEqual({ local: true, session: true, }); // Empty storage expect(count).toEqual({ local: 0, session: 0, }); }); });