mattermost-mobile/app/utils/gallery/index.test.ts
2024-08-06 13:17:36 +03:00

283 lines
9.8 KiB
TypeScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import {DeviceEventEmitter, Image, Keyboard} from 'react-native';
import {Navigation} from 'react-native-navigation';
import {measure, type AnimatedRef} from 'react-native-reanimated';
import {clamp, clampVelocity, fileToGalleryItem, freezeOtherScreens, friction, galleryItemToFileInfo, getImageSize, getShouldRender, measureItem, openGalleryAtIndex, typedMemo, workletNoop, workletNoopTrue} from '.';
import type {GalleryItemType, GalleryManagerSharedValues} from '@typings/screens/gallery';
jest.mock('@screens/navigation', () => ({
showOverlay: jest.fn(),
}));
jest.mock('react-native', () => {
const ReactNative = jest.requireActual('react-native');
const {
NativeModules: RNNativeModules,
} = ReactNative;
const NativeModules = {
...RNNativeModules,
RNUtils: {
getConstants: () => ({
appGroupIdentifier: 'group.mattermost.rnbeta',
appGroupSharedDirectory: {
sharedDirectory: '',
databasePath: '',
},
}),
addListener: jest.fn(),
removeListeners: jest.fn(),
isRunningInSplitView: jest.fn().mockReturnValue({isSplit: false, isTablet: false}),
getDeliveredNotifications: jest.fn().mockResolvedValue([]),
removeChannelNotifications: jest.fn().mockImplementation(),
removeThreadNotifications: jest.fn().mockImplementation(),
removeServerNotifications: jest.fn().mockImplementation(),
unlockOrientation: jest.fn(),
},
};
return Object.setPrototypeOf({
NativeModules,
DeviceEventEmitter: {
emit: jest.fn(),
},
Keyboard: {
dismiss: jest.fn(),
},
}, ReactNative);
});
// Mock react-native-reanimated measure function
jest.mock('react-native-reanimated', () => ({
measure: jest.fn(() => ({
pageX: 100,
pageY: 200,
width: 300,
height: 400,
})),
}));
describe('Gallery utils', () => {
afterAll(() => {
jest.clearAllMocks();
});
describe('clamp', () => {
it('should clamp a value within the given bounds', () => {
expect(clamp(5, 1, 10)).toBe(5);
expect(clamp(-5, 0, 10)).toBe(0);
expect(clamp(15, 0, 10)).toBe(10);
});
});
describe('clampVelocity', () => {
it('should clamp positive velocity within the given bounds', () => {
expect(clampVelocity(5, 1, 10)).toBe(5);
expect(clampVelocity(0.5, 1, 10)).toBe(1);
expect(clampVelocity(15, 1, 10)).toBe(10);
});
it('should clamp negative velocity within the given bounds', () => {
expect(clampVelocity(-5, 1, 10)).toBe(-5);
expect(clampVelocity(-0.5, 1, 10)).toBe(-1);
expect(clampVelocity(-15, 1, 10)).toBe(-10);
});
});
describe('fileToGalleryItem', () => {
it('should convert file info to gallery item with image type', () => {
const file = {
extension: 'jpg',
height: 600,
id: '123',
mime_type: 'image/jpeg',
name: 'test-image',
post_id: 'post123',
size: 5000,
localPath: '/path/to/image.jpg',
width: 800,
} as FileInfo;
const result = fileToGalleryItem(file);
expect(result.type).toBe('image');
expect(result.uri).toBe(file.localPath);
});
it('should convert file info to gallery item with video type', () => {
const file = {
extension: 'mp4',
height: 600,
id: '123',
mime_type: 'video/mp4',
name: 'test-video',
post_id: 'post123',
size: 10000,
localPath: '/path/to/video.mp4',
mini_preview: '/path/to/preview.jpg',
width: 800,
} as FileInfo;
const result = fileToGalleryItem(file);
expect(result.type).toBe('video');
expect(result.posterUri).toBe(file.mini_preview);
});
it('should convert file info to gallery item with video type and assign a file id that starts with uid', () => {
const file = {
extension: 'mp4',
height: 600,
mime_type: 'video/mp4',
name: 'test-video',
post_id: 'post123',
size: 10000,
localPath: '/path/to/video.mp4',
mini_preview: '/path/to/preview.jpg',
width: 800,
} as FileInfo;
const result = fileToGalleryItem(file);
expect(result.id.startsWith('uid')).toBeTruthy();
});
});
describe('freezeOtherScreens', () => {
it('should emit freeze screen event', () => {
freezeOtherScreens(true);
expect(DeviceEventEmitter.emit).toHaveBeenCalledWith('FREEZE_SCREEN', true);
});
});
describe('friction', () => {
it('should calculate friction based on value', () => {
expect(friction(100)).toBeGreaterThan(1);
expect(friction(-100)).toBeLessThan(0);
});
});
describe('galleryItemToFileInfo', () => {
it('should convert gallery item to file info', () => {
const item = {
id: '123',
name: 'test-image',
width: 800,
height: 600,
extension: 'jpg',
mime_type: 'image/jpeg',
postId: 'post123',
authorId: 'user123',
} as GalleryItemType;
const result = galleryItemToFileInfo(item);
expect(result.id).toBe(item.id);
expect(result.name).toBe(item.name);
});
});
describe('getShouldRender', () => {
it('should return true if index is within range of active index', () => {
expect(getShouldRender(5, 5)).toBe(true);
expect(getShouldRender(6, 5)).toBe(true);
expect(getShouldRender(9, 5)).toBe(false);
});
});
describe('measureItem', () => {
it('should measure and set shared values', () => {
const ref = jest.fn() as unknown as AnimatedRef<any>;
const sharedValues = {
x: {value: 0},
y: {value: 0},
width: {value: 0},
height: {value: 0},
} as GalleryManagerSharedValues;
measureItem(ref, sharedValues);
expect(sharedValues.x.value).toBe(100);
expect(sharedValues.y.value).toBe(200);
});
it('should measure and set shared values', () => {
const ref = jest.fn() as unknown as AnimatedRef<any>;
const sharedValues = {
x: {value: 0},
y: {value: 0},
width: {value: 0},
height: {value: 0},
} as GalleryManagerSharedValues;
measureItem(ref, sharedValues);
expect(sharedValues.x.value).toBe(100);
expect(sharedValues.y.value).toBe(200);
});
it('should handle measure exception and set shared values out of the viewport', () => {
const ref = jest.fn() as unknown as AnimatedRef<any>;
const sharedValues = {
x: {value: 0},
y: {value: 0},
width: {value: 0},
height: {value: 0},
} as GalleryManagerSharedValues;
(measure as jest.Mock).mockImplementationOnce(() => {
throw new Error('error');
});
measureItem(ref, sharedValues);
expect(sharedValues.x.value).toBe(999999);
expect(sharedValues.y.value).toBe(999999);
});
});
describe('openGalleryAtIndex', () => {
it('should open gallery and freeze other screens', () => {
const galleryIdentifier = 'gallery1';
const initialIndex = 0;
const items = [{id: '1', name: 'item1'}, {id: '2', name: 'item2'}] as GalleryItemType[];
openGalleryAtIndex(galleryIdentifier, initialIndex, items);
expect(Keyboard.dismiss).toHaveBeenCalled();
expect(Navigation.setDefaultOptions).toHaveBeenCalled();
});
});
describe('typedMemo', () => {
it('should memoize component', () => {
const component = jest.fn();
const memoizedComponent = typedMemo(component);
// @ts-expect-error type in typedef
expect(memoizedComponent.type).toBe(component);
});
});
describe('workletNoop', () => {
it('should execute without doing anything', () => {
expect(workletNoop()).toBeUndefined();
});
});
describe('workletNoopTrue', () => {
it('should always return true', () => {
expect(workletNoopTrue()).toBe(true);
});
});
describe('getImageSize', () => {
it('should resolve with image size', async () => {
jest.spyOn(Image, 'getSize').mockImplementationOnce((uri, success) => {
success(800, 600);
});
const result = await getImageSize('test-uri');
expect(result).toEqual({width: 800, height: 600});
});
it('should reject on error', async () => {
jest.spyOn(Image, 'getSize').mockImplementationOnce((uri, success, failure) => {
// @ts-expect-error param
failure(new Error('Failed to get size'));
});
await expect(getImageSize('test-uri')).rejects.toThrow('Failed to get size');
});
});
});