From 0f4d36938fd0d844f548aa5a7f7e7842df8dfb41 Mon Sep 17 00:00:00 2001 From: Darius Jahandarie Date: Wed, 8 Nov 2023 03:11:35 +0900 Subject: Switch to vitest for ESM support; other fixes --- test/dom-text-scanner.test.js | 179 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 179 insertions(+) create mode 100644 test/dom-text-scanner.test.js (limited to 'test/dom-text-scanner.test.js') diff --git a/test/dom-text-scanner.test.js b/test/dom-text-scanner.test.js new file mode 100644 index 00000000..d1b31276 --- /dev/null +++ b/test/dom-text-scanner.test.js @@ -0,0 +1,179 @@ +/* + * Copyright (C) 2023 Yomitan Authors + * Copyright (C) 2020-2022 Yomichan Authors + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +import fs from 'fs'; +import {JSDOM} from 'jsdom'; +import path from 'path'; +import {expect, test} from 'vitest'; +import {DOMTextScanner} from '../ext/js/dom/dom-text-scanner.js'; + +function createJSDOM(fileName) { + const domSource = fs.readFileSync(fileName, {encoding: 'utf8'}); + return new JSDOM(domSource); +} + +function querySelectorTextNode(element, selector) { + let textIndex = -1; + const match = /::text$|::nth-text\((\d+)\)$/.exec(selector); + if (match !== null) { + textIndex = (match[1] ? parseInt(match[1], 10) - 1 : 0); + selector = selector.substring(0, selector.length - match[0].length); + } + const result = element.querySelector(selector); + if (textIndex < 0) { + return result; + } + for (let n = result.firstChild; n !== null; n = n.nextSibling) { + if (n.nodeType === n.constructor.TEXT_NODE) { + if (textIndex === 0) { + return n; + } + --textIndex; + } + } + return null; +} + + +function getComputedFontSizeInPixels(window, getComputedStyle, element) { + for (; element !== null; element = element.parentNode) { + if (element.nodeType === window.Node.ELEMENT_NODE) { + const fontSize = getComputedStyle(element).fontSize; + if (fontSize.endsWith('px')) { + const value = parseFloat(fontSize.substring(0, fontSize.length - 2)); + return value; + } + } + } + const defaultFontSize = 14; + return defaultFontSize; +} + +function createAbsoluteGetComputedStyle(window) { + // Wrapper to convert em units to px units + const getComputedStyleOld = window.getComputedStyle.bind(window); + return (element, ...args) => { + const style = getComputedStyleOld(element, ...args); + return new Proxy(style, { + get: (target, property) => { + let result = target[property]; + if (typeof result === 'string') { + result = result.replace(/([-+]?\d(?:\.\d)?(?:[eE][-+]?\d+)?)em/g, (g0, g1) => { + const fontSize = getComputedFontSizeInPixels(window, getComputedStyleOld, element); + return `${parseFloat(g1) * fontSize}px`; + }); + } + return result; + } + }); + }; +} + + +async function testDomTextScanner(dom) { + const document = dom.window.document; + + test('DomTextScanner', () => { + for (const testElement of document.querySelectorAll('y-test')) { + let testData = JSON.parse(testElement.dataset.testData); + if (!Array.isArray(testData)) { + testData = [testData]; + } + for (const testDataItem of testData) { + let { + node, + offset, + length, + forcePreserveWhitespace, + generateLayoutContent, + reversible, + expected: { + node: expectedNode, + offset: expectedOffset, + content: expectedContent, + remainder: expectedRemainder + } + } = testDataItem; + + node = querySelectorTextNode(testElement, node); + expectedNode = querySelectorTextNode(testElement, expectedNode); + + // Standard test + { + const scanner = new DOMTextScanner(node, offset, forcePreserveWhitespace, generateLayoutContent); + scanner.seek(length); + + const {node: actualNode1, offset: actualOffset1, content: actualContent1, remainder: actualRemainder1} = scanner; + expect(actualContent1).toStrictEqual(expectedContent); + expect(actualOffset1).toStrictEqual(expectedOffset); + expect(actualNode1).toStrictEqual(expectedNode); + expect(actualRemainder1).toStrictEqual(expectedRemainder || 0); + } + + // Substring tests + for (let i = 1; i <= length; ++i) { + const scanner = new DOMTextScanner(node, offset, forcePreserveWhitespace, generateLayoutContent); + scanner.seek(length - i); + + const {content: actualContent} = scanner; + expect(actualContent).toStrictEqual(expectedContent.substring(0, expectedContent.length - i)); + } + + if (reversible === false) { continue; } + + // Reversed test + { + const scanner = new DOMTextScanner(expectedNode, expectedOffset, forcePreserveWhitespace, generateLayoutContent); + scanner.seek(-length); + + const {content: actualContent} = scanner; + expect(actualContent).toStrictEqual(expectedContent); + } + + // Reversed substring tests + for (let i = 1; i <= length; ++i) { + const scanner = new DOMTextScanner(expectedNode, expectedOffset, forcePreserveWhitespace, generateLayoutContent); + scanner.seek(-(length - i)); + + const {content: actualContent} = scanner; + expect(actualContent).toStrictEqual(expectedContent.substring(i)); + } + } + } + }); +} + + +async function testDocument1() { + const dom = createJSDOM(path.join(__dirname, 'data', 'html', 'test-dom-text-scanner.html')); + const window = dom.window; + try { + window.getComputedStyle = createAbsoluteGetComputedStyle(window); + + await testDomTextScanner(dom, {DOMTextScanner}); + } finally { + window.close(); + } +} + + +async function main() { + await testDocument1(); +} + +await main(); -- cgit v1.2.3