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/**
* @jest-environment jsdom
*/
import 'fake-indexeddb/auto'; // Polyfill indexedDB for this set of tests.
import {
supportsIDB,
clearStorage,
setStoredItem,
getStoredItem,
getAllStoredItems,
} from 'calypso/lib/browser-storage';
describe( 'lib/browser-storage', () => {
describe( 'when indexedDB is supported', () => {
beforeEach( async () => {
await clearStorage();
} );
it( 'should detect that indexedDB is supported', async () => {
expect( await supportsIDB() ).toBeTruthy();
} );
it( 'should set and get a numeric item', async () => {
expect( async () => await setStoredItem( 'number', 42 ) ).not.toThrow();
expect( await getStoredItem( 'number' ) ).toBe( 42 );
} );
it( 'should set and get an object', async () => {
expect(
async () => await setStoredItem( 'object', { string: 'example', number: 42 } )
).not.toThrow();
expect( await getStoredItem( 'object' ) ).toEqual( { string: 'example', number: 42 } );
} );
it( 'should return undefined when fetching a missing item', async () => {
expect( await getStoredItem( 'missing' ) ).toBe( undefined );
} );
it( 'should clear the store correctly', async () => {
expect( async () => await setStoredItem( 'number', 42 ) ).not.toThrow();
expect( await getStoredItem( 'number' ) ).toBe( 42 );
expect( async () => await clearStorage() ).not.toThrow();
expect( await getStoredItem( 'number' ) ).toBe( undefined );
} );
it( 'should set and retrieve all items', async () => {
expect( async () => await setStoredItem( 'item1', 1 ) ).not.toThrow();
expect( async () => await setStoredItem( 'item2', 2 ) ).not.toThrow();
expect( async () => await setStoredItem( 'item3', 3 ) ).not.toThrow();
expect( async () => await setStoredItem( 'itemA', 'A' ) ).not.toThrow();
expect( await getAllStoredItems() ).toEqual( {
item1: 1,
item2: 2,
item3: 3,
itemA: 'A',
} );
} );
it( 'should set and retrieve all items that follow a pattern', async () => {
expect( async () => await setStoredItem( 'item1', 1 ) ).not.toThrow();
expect( async () => await setStoredItem( 'item2', 2 ) ).not.toThrow();
expect( async () => await setStoredItem( 'item3', 3 ) ).not.toThrow();
expect( async () => await setStoredItem( 'itemA', 'A' ) ).not.toThrow();
expect( await getAllStoredItems( /item\d/ ) ).toEqual( {
item1: 1,
item2: 2,
item3: 3,
} );
} );
} );
} );
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