mattermost-mobile/app/utils/emoji/prefetch.test.ts

62 lines
1.6 KiB
TypeScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import {Image as ExpoImage} from 'expo-image';
import {Image, Platform} from 'react-native';
import {logDebug} from '@utils/log';
import {prefetchCustomEmojiImages} from './prefetch';
import type {Client} from '@client/rest';
jest.mock('expo-image', () => ({
Image: {
prefetch: jest.fn(),
},
}));
jest.mock('react-native', () => ({
Platform: {
OS: 'ios',
},
Image: {
prefetch: jest.fn(),
},
}));
jest.mock('@utils/log');
describe('prefetchCustomEmojiImages', () => {
const mockClient = {
getCustomEmojiImageUrl: jest.fn((id) => `url/${id}`),
} as unknown as Client;
const emojis = [
{id: 'emoji1', name: 'emoji_name1'},
{id: 'emoji2', name: 'emoji_name2'},
] as CustomEmoji[];
beforeEach(() => {
jest.clearAllMocks();
});
it('should prefetch custom emoji images on iOS', () => {
Platform.OS = 'ios';
prefetchCustomEmojiImages(mockClient, emojis);
expect(logDebug).toHaveBeenCalledWith('Prefetching 2 custom emoji images');
expect(ExpoImage.prefetch).toHaveBeenCalledWith(['url/emoji1', 'url/emoji2'], 'disk');
});
it('should prefetch custom emoji images on Android', () => {
Platform.OS = 'android';
prefetchCustomEmojiImages(mockClient, emojis);
expect(logDebug).toHaveBeenCalledWith('Prefetching 2 custom emoji images');
expect(Image.prefetch).toHaveBeenCalledWith('url/emoji1');
expect(Image.prefetch).toHaveBeenCalledWith('url/emoji2');
});
});