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80 lines
2.7 KiB
80 lines
2.7 KiB
2 years ago
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import browser from 'webextension-polyfill';
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import LocalStore from './local-store';
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jest.mock('webextension-polyfill', () => ({
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storage: { local: true },
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}));
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const setup = ({ isSupported }) => {
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browser.storage.local = isSupported;
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return new LocalStore();
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};
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describe('LocalStore', () => {
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afterEach(() => {
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jest.resetModules();
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});
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describe('contructor', () => {
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it('should set isSupported property to false when browser does not support local storage', () => {
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const localStore = setup({ isSupported: false });
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expect(localStore.isSupported).toBe(false);
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});
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it('should set isSupported property to true when browser supports local storage', () => {
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const localStore = setup({ isSupported: true });
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expect(localStore.isSupported).toBe(true);
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});
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});
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describe('setMetadata', () => {
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it('should set the metadata property on LocalStore', () => {
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const metadata = { version: 74 };
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const localStore = setup({ isSupported: true });
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localStore.setMetadata(metadata);
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expect(localStore.metadata).toStrictEqual(metadata);
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});
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});
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describe('set', () => {
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it('should throw an error if called in a browser that does not support local storage', async () => {
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const localStore = setup({ isSupported: false });
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await expect(() => localStore.set()).rejects.toThrow(
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'Metamask- cannot persist state to local store as this browser does not support this action',
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);
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});
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it('should throw an error if not passed a truthy value as an argument', async () => {
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const localStore = setup({ isSupported: true });
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await expect(() => localStore.set()).rejects.toThrow(
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'MetaMask - updated state is missing',
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);
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});
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it('should throw an error if passed a valid argument but metadata has not yet been set', async () => {
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const localStore = setup({ isSupported: true });
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await expect(() =>
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localStore.set({ appState: { test: true } }),
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).rejects.toThrow(
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'MetaMask - metadata must be set on instance of ExtensionStore before calling "set"',
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);
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});
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it('should not throw if passed a valid argument and metadata has been set', async () => {
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const localStore = setup({ isSupported: true });
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localStore.setMetadata({ version: 74 });
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await expect(async function () {
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localStore.set({ appState: { test: true } });
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}).not.toThrow();
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});
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});
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describe('get', () => {
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it('should return undefined if called in a browser that does not support local storage', async () => {
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const localStore = setup({ isSupported: false });
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const result = await localStore.get();
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expect(result).toStrictEqual(undefined);
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});
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});
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});
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