mirror of
https://github.com/philomena-dev/philomena.git
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637 lines
24 KiB
TypeScript
637 lines
24 KiB
TypeScript
import { hideThumb, showBlock, showThumb, spoilerBlock, spoilerThumb } from '../image';
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import { getRandomArrayItem } from '../../../test/randomness';
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import { mockStorage } from '../../../test/mock-storage';
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import { createEvent, fireEvent } from '@testing-library/dom';
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import { EventType } from '@testing-library/dom/types/events';
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import { SpoilerType } from '../../../types/booru-object';
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import { beforeEach } from 'vitest';
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describe('Image utils', () => {
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const hiddenClass = 'hidden';
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const spoilerOverlayClass = 'js-spoiler-info-overlay';
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const serveHidpiStorageKey = 'serve_hidpi';
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const mockSpoilerReason = 'Mock reason';
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const mockSpoilerUri = '/images/tagblocked.svg';
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const mockImageUri = 'data:image/gif;base64,R0lGODlhAQABAIAAAP///////yH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';
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const getMockImageSizeUrls = (extension: string) => ({
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thumb: `https://example.com/thumb.${extension}`,
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small: `https://example.com/small.${extension}`,
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medium: `https://example.com/medium.${extension}`,
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large: `https://example.com/large.${extension}`,
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});
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type ImageSize = keyof ReturnType<typeof getMockImageSizeUrls>;
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const PossibleImageSizes: ImageSize[] = ['thumb', 'small', 'medium', 'large'];
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const applyMockDataAttributes = (element: HTMLElement, extension: string, size?: ImageSize) => {
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const mockSize = size || getRandomArrayItem(PossibleImageSizes);
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const mockSizeUrls = getMockImageSizeUrls(extension);
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element.setAttribute('data-size', mockSize);
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element.setAttribute('data-uris', JSON.stringify(mockSizeUrls));
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return { mockSize, mockSizeUrls };
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};
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const createMockSpoilerOverlay = () => {
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const mockSpoilerOverlay = document.createElement('div');
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mockSpoilerOverlay.classList.add(spoilerOverlayClass);
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return mockSpoilerOverlay;
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};
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const createMockElementWithPicture = (extension: string, size?: ImageSize) => {
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const mockElement = document.createElement('div');
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const { mockSizeUrls, mockSize } = applyMockDataAttributes(mockElement, extension, size);
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const mockPicture = document.createElement('picture');
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mockElement.appendChild(mockPicture);
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const mockSizeImage = new Image();
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mockPicture.appendChild(mockSizeImage);
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const mockSpoilerOverlay = createMockSpoilerOverlay();
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mockElement.appendChild(mockSpoilerOverlay);
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return {
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mockElement,
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mockPicture,
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mockSize,
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mockSizeImage,
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mockSizeUrls,
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mockSpoilerOverlay,
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};
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};
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const imageFilteredClass = 'image-filtered';
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const imageShowClass = 'image-show';
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const spoilerPendingClass = 'spoiler-pending';
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const createImageFilteredElement = (mockElement: HTMLDivElement) => {
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const mockFilteredImageElement = document.createElement('div');
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mockFilteredImageElement.classList.add(imageFilteredClass);
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mockElement.appendChild(mockFilteredImageElement);
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return { mockFilteredImageElement };
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};
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const createImageShowElement = (mockElement: HTMLDivElement) => {
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const mockShowElement = document.createElement('div');
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mockShowElement.classList.add(imageShowClass);
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mockShowElement.classList.add(hiddenClass);
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mockElement.appendChild(mockShowElement);
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return { mockShowElement };
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};
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describe('showThumb', () => {
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let mockServeHidpiValue: string | null = null;
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mockStorage({
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getItem(key: string) {
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if (key !== serveHidpiStorageKey) return null;
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return mockServeHidpiValue;
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},
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});
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beforeEach(() => {
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mockServeHidpiValue = null;
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});
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describe('video thumbnail', () => {
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type CreateMockElementsOptions = {
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extension: string;
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videoClasses?: string[];
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imgClasses?: string[];
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}
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const createMockElements = ({ videoClasses, imgClasses, extension }: CreateMockElementsOptions) => {
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const mockElement = document.createElement('div');
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const { mockSize, mockSizeUrls } = applyMockDataAttributes(mockElement, extension);
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const mockImage = new Image();
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mockImage.src = mockImageUri;
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if (imgClasses) {
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imgClasses.forEach(videoClass => {
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mockImage.classList.add(videoClass);
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});
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}
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mockElement.appendChild(mockImage);
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const mockVideo = document.createElement('video');
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if (videoClasses) {
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videoClasses.forEach(videoClass => {
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mockVideo.classList.add(videoClass);
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});
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}
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mockElement.appendChild(mockVideo);
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const playSpy = vi.spyOn(mockVideo, 'play').mockReturnValue(Promise.resolve());
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const mockSpoilerOverlay = createMockSpoilerOverlay();
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mockElement.appendChild(mockSpoilerOverlay);
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return {
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mockElement,
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mockImage,
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mockSize,
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mockSizeUrls,
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mockSpoilerOverlay,
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mockVideo,
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playSpy,
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};
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};
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it('should hide the img element and show the video instead if no picture element is present', () => {
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const {
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mockElement,
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mockImage,
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playSpy,
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mockVideo,
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mockSize,
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mockSizeUrls,
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mockSpoilerOverlay,
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} = createMockElements({
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extension: 'webm',
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videoClasses: ['hidden'],
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});
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const result = showThumb(mockElement);
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expect(mockImage).to.have.class(hiddenClass);
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expect(mockVideo.children).toHaveLength(2);
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const webmSourceElement = mockVideo.children[0];
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const webmSource = mockSizeUrls[mockSize];
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expect(webmSourceElement.nodeName).toEqual('SOURCE');
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expect(webmSourceElement.getAttribute('type')).toEqual('video/webm');
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expect(webmSourceElement.getAttribute('src')).toEqual(webmSource);
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const mp4SourceElement = mockVideo.children[1];
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expect(mp4SourceElement.nodeName).toEqual('SOURCE');
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expect(mp4SourceElement.getAttribute('type')).toEqual('video/mp4');
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expect(mp4SourceElement.getAttribute('src')).toEqual(webmSource.replace('webm', 'mp4'));
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expect(mockVideo).not.to.have.class(hiddenClass);
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expect(playSpy).toHaveBeenCalledTimes(1);
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expect(mockSpoilerOverlay).to.have.class(hiddenClass);
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expect(result).toBe(true);
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});
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['data-size', 'data-uris'].forEach(missingAttributeName => {
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it(`should return early if the ${missingAttributeName} attribute is missing`, () => {
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const { mockElement } = createMockElements({
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extension: 'webm',
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});
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const jsonParseSpy = vi.spyOn(JSON, 'parse');
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mockElement.removeAttribute(missingAttributeName);
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try {
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const result = showThumb(mockElement);
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expect(result).toBe(false);
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expect(jsonParseSpy).not.toHaveBeenCalled();
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}
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finally {
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jsonParseSpy.mockRestore();
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}
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});
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});
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it('should return early if there is no video element', () => {
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const { mockElement, mockVideo, playSpy } = createMockElements({
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extension: 'webm',
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});
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mockElement.removeChild(mockVideo);
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const result = showThumb(mockElement);
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expect(result).toBe(false);
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expect(playSpy).not.toHaveBeenCalled();
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});
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it('should return early if img element is missing', () => {
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const { mockElement, mockImage, playSpy } = createMockElements({
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extension: 'webm',
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imgClasses: ['hidden'],
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});
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mockElement.removeChild(mockImage);
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const result = showThumb(mockElement);
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expect(result).toBe(false);
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expect(playSpy).not.toHaveBeenCalled();
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});
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it('should return early if img element already has the hidden class', () => {
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const { mockElement, playSpy } = createMockElements({
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extension: 'webm',
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imgClasses: ['hidden'],
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});
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const result = showThumb(mockElement);
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expect(result).toBe(false);
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expect(playSpy).not.toHaveBeenCalled();
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});
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});
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it('should show the correct thumbnail image for jpg extension', () => {
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const {
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mockElement,
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mockSizeImage,
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mockSizeUrls,
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mockSize,
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mockSpoilerOverlay,
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} = createMockElementWithPicture('jpg');
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const result = showThumb(mockElement);
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expect(mockSizeImage.src).toBe(mockSizeUrls[mockSize]);
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expect(mockSizeImage.srcset).toBe('');
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expect(mockSpoilerOverlay).to.have.class(hiddenClass);
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expect(result).toBe(true);
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});
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it('should show the correct thumbnail image for gif extension', () => {
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const {
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mockElement,
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mockSizeImage,
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mockSizeUrls,
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mockSize,
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mockSpoilerOverlay,
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} = createMockElementWithPicture('gif');
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const result = showThumb(mockElement);
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expect(mockSizeImage.src).toBe(mockSizeUrls[mockSize]);
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expect(mockSizeImage.srcset).toBe('');
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expect(mockSpoilerOverlay).to.have.class(hiddenClass);
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expect(result).toBe(true);
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});
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it('should show the correct thumbnail image for webm extension', () => {
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const {
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mockElement,
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mockSpoilerOverlay,
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mockSizeImage,
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mockSizeUrls,
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mockSize,
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} = createMockElementWithPicture('webm');
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const result = showThumb(mockElement);
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expect(mockSizeImage.src).toBe(mockSizeUrls[mockSize].replace('webm', 'gif'));
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expect(mockSizeImage.srcset).toBe('');
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expect(mockSpoilerOverlay).not.to.have.class(hiddenClass);
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expect(mockSpoilerOverlay).to.have.text('WebM');
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expect(result).toBe(true);
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});
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describe('high DPI srcset handling', () => {
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beforeEach(() => {
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mockServeHidpiValue = 'true';
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});
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const checkSrcsetAttribute = (size: ImageSize, x2size: ImageSize) => {
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const {
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mockElement,
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mockSizeImage,
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mockSizeUrls,
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mockSpoilerOverlay,
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} = createMockElementWithPicture('jpg', size);
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const result = showThumb(mockElement);
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expect(mockSizeImage.src).toBe(mockSizeUrls[size]);
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expect(mockSizeImage.srcset).toContain(`${mockSizeUrls[size]} 1x`);
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expect(mockSizeImage.srcset).toContain(`${mockSizeUrls[x2size]} 2x`);
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expect(mockSpoilerOverlay).to.have.class(hiddenClass);
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return result;
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};
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it('should set correct srcset on img if thumbUri is NOT a gif at small size', () => {
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const result = checkSrcsetAttribute('small', 'medium');
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expect(result).toBe(true);
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});
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it('should set correct srcset on img if thumbUri is NOT a gif at medium size', () => {
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const result = checkSrcsetAttribute('medium', 'large');
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expect(result).toBe(true);
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});
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it('should NOT set srcset on img if thumbUri is a gif at small size', () => {
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const mockSize = 'small';
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const {
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mockElement,
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mockSizeImage,
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mockSizeUrls,
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mockSpoilerOverlay,
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} = createMockElementWithPicture('gif', mockSize);
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const result = showThumb(mockElement);
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expect(mockSizeImage.src).toBe(mockSizeUrls[mockSize]);
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expect(mockSizeImage.srcset).toBe('');
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expect(mockSpoilerOverlay).to.have.class(hiddenClass);
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expect(result).toBe(true);
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});
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});
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it('should return false if img cannot be found', () => {
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const { mockElement, mockPicture, mockSizeImage } = createMockElementWithPicture('jpg');
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mockPicture.removeChild(mockSizeImage);
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const result = showThumb(mockElement);
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expect(result).toBe(false);
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});
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it('should return false if img source already matches thumbUri', () => {
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const {
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mockElement,
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mockSizeImage,
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mockSizeUrls,
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mockSize,
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} = createMockElementWithPicture('jpg');
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mockSizeImage.src = mockSizeUrls[mockSize];
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const result = showThumb(mockElement);
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expect(result).toBe(false);
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});
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it('should return false if overlay is missing', () => {
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const { mockElement, mockSpoilerOverlay } = createMockElementWithPicture('jpg');
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mockSpoilerOverlay.parentNode?.removeChild(mockSpoilerOverlay);
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const result = showThumb(mockElement);
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expect(result).toBe(false);
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});
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});
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describe('showBlock', () => {
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it('should hide the filtered image element and show the image', () => {
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const mockElement = document.createElement('div');
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const { mockFilteredImageElement } = createImageFilteredElement(mockElement);
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const { mockShowElement } = createImageShowElement(mockElement);
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showBlock(mockElement);
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expect(mockFilteredImageElement).to.have.class(hiddenClass);
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expect(mockShowElement).not.to.have.class(hiddenClass);
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expect(mockShowElement).to.have.class(spoilerPendingClass);
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});
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it('should not throw if image-filtered element is missing', () => {
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const mockElement = document.createElement('div');
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createImageShowElement(mockElement);
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expect(() => showBlock(mockElement)).not.toThrow();
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});
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it('should not throw if image-show element is missing', () => {
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const mockElement = document.createElement('div');
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createImageFilteredElement(mockElement);
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expect(() => showBlock(mockElement)).not.toThrow();
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});
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});
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describe('hideThumb', () => {
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describe('hideVideoThumb', () => {
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it('should return early if picture AND video elements are missing', () => {
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const mockElement = document.createElement('div');
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const querySelectorSpy = vi.spyOn(mockElement, 'querySelector');
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hideThumb(mockElement, mockSpoilerUri, mockSpoilerReason);
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try {
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expect(querySelectorSpy).toHaveBeenCalledTimes(2);
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expect(querySelectorSpy).toHaveBeenNthCalledWith(1, 'picture');
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expect(querySelectorSpy).toHaveBeenNthCalledWith(2, 'video');
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}
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finally {
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querySelectorSpy.mockRestore();
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}
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});
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it('should return early if picture and img elements are missing BUT video element is present', () => {
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const mockElement = document.createElement('div');
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const mockVideo = document.createElement('video');
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mockElement.appendChild(mockVideo);
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const pauseSpy = vi.spyOn(mockVideo, 'pause').mockReturnValue(undefined);
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const querySelectorSpy = vi.spyOn(mockElement, 'querySelector');
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hideThumb(mockElement, mockSpoilerUri, mockSpoilerReason);
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try {
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expect(querySelectorSpy).toHaveBeenCalledTimes(4);
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expect(querySelectorSpy).toHaveBeenNthCalledWith(1, 'picture');
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expect(querySelectorSpy).toHaveBeenNthCalledWith(2, 'video');
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expect(querySelectorSpy).toHaveBeenNthCalledWith(3, 'img');
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expect(querySelectorSpy).toHaveBeenNthCalledWith(4, `.${spoilerOverlayClass}`);
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expect(mockVideo).not.to.have.class(hiddenClass);
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}
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finally {
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querySelectorSpy.mockRestore();
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pauseSpy.mockRestore();
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}
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});
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it('should hide video thumbnail if picture element is missing BUT video element is present', () => {
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const mockElement = document.createElement('div');
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const mockVideo = document.createElement('video');
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mockElement.appendChild(mockVideo);
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const pauseSpy = vi.spyOn(mockVideo, 'pause').mockReturnValue(undefined);
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const mockImage = document.createElement('img');
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mockImage.classList.add(hiddenClass);
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mockElement.appendChild(mockImage);
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const mockOverlay = document.createElement('span');
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mockOverlay.classList.add(spoilerOverlayClass, hiddenClass);
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mockElement.appendChild(mockOverlay);
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hideThumb(mockElement, mockSpoilerUri, mockSpoilerReason);
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try {
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expect(mockImage).not.to.have.class(hiddenClass);
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expect(mockImage).to.have.attribute('src', mockSpoilerUri);
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expect(mockOverlay).to.have.text(mockSpoilerReason);
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expect(mockVideo).not.to.have.descendants('*');
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expect(mockVideo).to.have.class(hiddenClass);
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expect(pauseSpy).toHaveBeenCalled();
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}
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finally {
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pauseSpy.mockRestore();
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}
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});
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});
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it('should return early if picture element is present AND img element is missing', () => {
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const mockElement = document.createElement('div');
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const mockPicture = document.createElement('picture');
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mockElement.appendChild(mockPicture);
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const imgQuerySelectorSpy = vi.spyOn(mockElement, 'querySelector');
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const pictureQuerySelectorSpy = vi.spyOn(mockPicture, 'querySelector');
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hideThumb(mockElement, mockSpoilerUri, mockSpoilerReason);
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try {
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expect(imgQuerySelectorSpy).toHaveBeenCalledTimes(2);
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expect(pictureQuerySelectorSpy).toHaveBeenCalledTimes(1);
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expect(imgQuerySelectorSpy).toHaveBeenNthCalledWith(1, 'picture');
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expect(pictureQuerySelectorSpy).toHaveBeenNthCalledWith(1, 'img');
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expect(imgQuerySelectorSpy).toHaveBeenNthCalledWith(2, `.${spoilerOverlayClass}`);
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}
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finally {
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imgQuerySelectorSpy.mockRestore();
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pictureQuerySelectorSpy.mockRestore();
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}
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});
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it('should hide img thumbnail if picture element is present AND img element is present', () => {
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const mockElement = document.createElement('div');
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const mockPicture = document.createElement('picture');
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mockElement.appendChild(mockPicture);
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const mockImage = document.createElement('img');
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mockPicture.appendChild(mockImage);
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const mockOverlay = document.createElement('span');
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mockOverlay.classList.add(spoilerOverlayClass, hiddenClass);
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mockElement.appendChild(mockOverlay);
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hideThumb(mockElement, mockSpoilerUri, mockSpoilerReason);
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expect(mockImage).to.have.attribute('srcset', '');
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expect(mockImage).to.have.attribute('src', mockSpoilerUri);
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expect(mockOverlay).to.contain.html(mockSpoilerReason);
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expect(mockOverlay).not.to.have.class(hiddenClass);
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});
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});
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describe('spoilerThumb', () => {
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const testSpoilerThumb = (handlers?: [EventType, EventType]) => {
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const { mockElement, mockSpoilerOverlay, mockSizeImage } = createMockElementWithPicture('jpg');
|
|
const addEventListenerSpy = vi.spyOn(mockElement, 'addEventListener');
|
|
|
|
spoilerThumb(mockElement, mockSpoilerUri, mockSpoilerReason);
|
|
|
|
// Element should be hidden by the call
|
|
expect(mockSizeImage).to.have.attribute('src', mockSpoilerUri);
|
|
expect(mockSpoilerOverlay).not.to.have.class(hiddenClass);
|
|
expect(mockSpoilerOverlay).to.contain.html(mockSpoilerReason);
|
|
|
|
// If addEventListener calls are not expected, bail
|
|
if (!handlers) {
|
|
expect(addEventListenerSpy).not.toHaveBeenCalled();
|
|
return;
|
|
}
|
|
|
|
const [firstHandler, secondHandler] = handlers;
|
|
|
|
// Event listeners should be attached to correct events
|
|
expect(addEventListenerSpy).toHaveBeenCalledTimes(2);
|
|
expect(addEventListenerSpy.mock.calls[0][0]).toBe(firstHandler.toLowerCase());
|
|
expect(addEventListenerSpy.mock.calls[1][0]).toBe(secondHandler.toLowerCase());
|
|
|
|
// Clicking once should reveal the image and hide spoiler elements
|
|
let clickEvent = createEvent[firstHandler](mockElement);
|
|
fireEvent(mockElement, clickEvent);
|
|
if (firstHandler === 'click') {
|
|
expect(clickEvent.defaultPrevented).toBe(true);
|
|
}
|
|
expect(mockSizeImage).not.to.have.attribute('src', mockSpoilerUri);
|
|
expect(mockSpoilerOverlay).to.have.class(hiddenClass);
|
|
|
|
if (firstHandler === 'click') {
|
|
// Second attempt to click a shown spoiler should not cause default prevention
|
|
clickEvent = createEvent.click(mockElement);
|
|
fireEvent(mockElement, clickEvent);
|
|
expect(clickEvent.defaultPrevented).toBe(false);
|
|
}
|
|
|
|
// Moving the mouse away should hide the image and show the overlay again
|
|
const mouseLeaveEvent = createEvent.mouseLeave(mockElement);
|
|
fireEvent(mockElement, mouseLeaveEvent);
|
|
expect(mockSizeImage).to.have.attribute('src', mockSpoilerUri);
|
|
expect(mockSpoilerOverlay).not.to.have.class(hiddenClass);
|
|
expect(mockSpoilerOverlay).to.contain.html(mockSpoilerReason);
|
|
};
|
|
let lastSpoilerType: SpoilerType;
|
|
|
|
beforeEach(() => {
|
|
lastSpoilerType = window.booru.spoilerType;
|
|
});
|
|
|
|
afterEach(() => {
|
|
window.booru.spoilerType = lastSpoilerType;
|
|
});
|
|
|
|
it('should add click and mouseleave handlers for click spoiler type', () => {
|
|
window.booru.spoilerType = 'click';
|
|
expect.hasAssertions();
|
|
testSpoilerThumb(['click', 'mouseLeave']);
|
|
});
|
|
|
|
it('should add mouseenter and mouseleave handlers for hover spoiler type', () => {
|
|
window.booru.spoilerType = 'hover';
|
|
expect.hasAssertions();
|
|
testSpoilerThumb(['mouseEnter', 'mouseLeave']);
|
|
});
|
|
|
|
it('should not add event handlers for off spoiler type', () => {
|
|
window.booru.spoilerType = 'off';
|
|
expect.hasAssertions();
|
|
testSpoilerThumb();
|
|
});
|
|
|
|
it('should not add event handlers for static spoiler type', () => {
|
|
window.booru.spoilerType = 'static';
|
|
expect.hasAssertions();
|
|
testSpoilerThumb();
|
|
});
|
|
});
|
|
|
|
describe('spoilerBlock', () => {
|
|
const filterExplanationClass = 'filter-explanation';
|
|
const createFilteredImageElement = () => {
|
|
const mockImageFiltered = document.createElement('div');
|
|
mockImageFiltered.classList.add(imageFilteredClass, hiddenClass);
|
|
|
|
const mockImage = new Image();
|
|
mockImage.src = mockImageUri;
|
|
mockImageFiltered.appendChild(mockImage);
|
|
|
|
return { mockImageFiltered, mockImage };
|
|
};
|
|
const createMockElement = (appendImageShow = true, appendImageFiltered = true) => {
|
|
const mockElement = document.createElement('div');
|
|
const { mockImageFiltered, mockImage } = createFilteredImageElement();
|
|
if (appendImageFiltered) mockElement.appendChild(mockImageFiltered);
|
|
const mockExplanation = document.createElement('span');
|
|
mockExplanation.classList.add(filterExplanationClass);
|
|
mockElement.appendChild(mockExplanation);
|
|
|
|
const mockImageShow = document.createElement('div');
|
|
mockImageShow.classList.add(imageShowClass);
|
|
if (appendImageShow) mockElement.appendChild(mockImageShow);
|
|
|
|
return { mockElement, mockImage, mockExplanation, mockImageShow, mockImageFiltered };
|
|
};
|
|
|
|
it('should not throw if image element is missing', () => {
|
|
const mockElement = document.createElement('div');
|
|
const { mockImageFiltered, mockImage } = createFilteredImageElement();
|
|
mockImage.parentNode?.removeChild(mockImage);
|
|
mockElement.appendChild(mockImageFiltered);
|
|
expect(() => spoilerBlock(mockElement, mockSpoilerUri, mockSpoilerReason)).not.toThrow();
|
|
});
|
|
|
|
it('should update the elements with the parameters and set classes if image element is found', () => {
|
|
const { mockElement, mockImage, mockExplanation, mockImageShow, mockImageFiltered } = createMockElement();
|
|
|
|
spoilerBlock(mockElement, mockSpoilerUri, mockSpoilerReason);
|
|
|
|
expect(mockImage).to.have.attribute('src', mockSpoilerUri);
|
|
expect(mockExplanation).to.contain.html(mockSpoilerReason);
|
|
expect(mockImageShow).to.have.class(hiddenClass);
|
|
expect(mockImageFiltered).not.to.have.class(hiddenClass);
|
|
});
|
|
|
|
it('should not throw if image-filtered element is missing', () => {
|
|
const { mockElement } = createMockElement(true, false);
|
|
expect(() => spoilerBlock(mockElement, mockSpoilerUri, mockSpoilerReason)).not.toThrow();
|
|
});
|
|
|
|
it('should not throw if image-show element is missing', () => {
|
|
const { mockElement } = createMockElement(false, true);
|
|
expect(() => spoilerBlock(mockElement, mockSpoilerUri, mockSpoilerReason)).not.toThrow();
|
|
});
|
|
});
|
|
});
|