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How to use compareDocumentations method in Puppeteer

Best JavaScript code snippet using puppeteer

index.js

Source:index.js

...51  const mdDocumentation = mdResult.documentation;52  const jsErrors = jsResult.errors;53  jsErrors.push(...checkDuplicates(jsDocumentation));54  const mdErrors = mdResult.errors;55  mdErrors.push(...compareDocumentations(mdDocumentation, jsDocumentation));56  mdErrors.push(...checkDuplicates(mdDocumentation));57  mdErrors.push(...checkSorting(mdDocumentation));58  // Push all errors with proper prefixes59  const errors = jsErrors.map(error => '[JavaScript] ' + error);60  errors.push(...mdErrors.map(error => '[MarkDown] ' + error));61  return errors.map(error => Message.error(error));62};63/**64 * @param {!Documentation} doc65 * @return {!Array<string>}66 */67function checkSorting(doc) {68  const errors = [];69  for (const cls of doc.classesArray) {70    const members = cls.membersArray;71    // Events should go first.72    let eventIndex = 0;73    for (; eventIndex < members.length && members[eventIndex].type === 'event'; ++eventIndex);74    for (; eventIndex < members.length && members[eventIndex].type !== 'event'; ++eventIndex);75    if (eventIndex < members.length)76      errors.push(`Events should go first. Event '${members[eventIndex].name}' in class ${cls.name} breaks order`);77    // Constructor should be right after events and before all other members.78    const constructorIndex = members.findIndex(member => member.type === 'method' && member.name === 'constructor');79    if (constructorIndex > 0 && members[constructorIndex - 1].type !== 'event')80      errors.push(`Constructor of ${cls.name} should go before other methods`);81    // Events should be sorted alphabetically.82    for (let i = 0; i < members.length - 1; ++i) {83      const member1 = cls.membersArray[i];84      const member2 = cls.membersArray[i + 1];85      if (member1.type !== 'event' || member2.type !== 'event')86        continue;87      if (member1.name > member2.name)88        errors.push(`Event '${member1.name}' in class ${cls.name} breaks alphabetic ordering of events`);89    }90    // All other members should be sorted alphabetically.91    for (let i = 0; i < members.length - 1; ++i) {92      const member1 = cls.membersArray[i];93      const member2 = cls.membersArray[i + 1];94      if (member1.type === 'event' || member2.type === 'event')95        continue;96      if (member1.type === 'method' && member1.name === 'constructor')97        continue;98      if (member1.name > member2.name) {99        let memberName1 = `${cls.name}.${member1.name}`;100        if (member1.type === 'method')101          memberName1 += '()';102        let memberName2 = `${cls.name}.${member2.name}`;103        if (member2.type === 'method')104          memberName2 += '()';105        errors.push(`Bad alphabetic ordering of ${cls.name} members: ${memberName1} should go after ${memberName2}`);106      }107    }108  }109  return errors;110}111/**112 * @param {!Documentation} jsDocumentation113 * @return {!Documentation}114 */115function filterJSDocumentation(jsDocumentation) {116  // Filter classes and methods.117  const classes = [];118  for (const cls of jsDocumentation.classesArray) {119    if (EXCLUDE_CLASSES.has(cls.name))120      continue;121    const members = cls.membersArray.filter(member => {122      if (member.name.startsWith('_'))123        return false;124      // Exclude all constructors by default.125      if (member.name === 'constructor' && member.type === 'method')126        return false;127      return !EXCLUDE_METHODS.has(`${cls.name}.${member.name}`);128    });129    classes.push(new Documentation.Class(cls.name, members));130  }131  return new Documentation(classes);132}133/**134 * @param {!Documentation} doc135 * @return {!Array<string>}136 */137function checkDuplicates(doc) {138  const errors = [];139  const classes = new Set();140  // Report duplicates.141  for (const cls of doc.classesArray) {142    if (classes.has(cls.name))143      errors.push(`Duplicate declaration of class ${cls.name}`);144    classes.add(cls.name);145    const members = new Set();146    for (const member of cls.membersArray) {147      if (members.has(member.type + ' ' + member.name))148        errors.push(`Duplicate declaration of ${member.type} ${cls.name}.${member.name}()`);149      members.add(member.type + ' ' + member.name);150      const args = new Set();151      for (const arg of member.argsArray) {152        if (args.has(arg.name))153          errors.push(`Duplicate declaration of argument ${cls.name}.${member.name} "${arg.name}"`);154        args.add(arg.name);155      }156    }157  }158  return errors;159}160/**161 * @param {!Documentation} actual162 * @param {!Documentation} expected163 * @return {!Array<string>}164 */165function compareDocumentations(actual, expected) {166  const errors = [];167  const actualClasses = Array.from(actual.classes.keys()).sort();168  const expectedClasses = Array.from(expected.classes.keys()).sort();169  const classesDiff = diff(actualClasses, expectedClasses);170  for (const className of classesDiff.extra)171    errors.push(`Non-existing class found: ${className}`);172  for (const className of classesDiff.missing)173    errors.push(`Class not found: ${className}`);174  for (const className of classesDiff.equal) {175    const actualClass = actual.classes.get(className);176    const expectedClass = expected.classes.get(className);177    const actualMethods = Array.from(actualClass.methods.keys()).sort();178    const expectedMethods = Array.from(expectedClass.methods.keys()).sort();179    const methodDiff = diff(actualMethods, expectedMethods);...

Using AI Code Generation

1const puppeteer = require('puppeteer');2(async () => {3  const browser = await puppeteer.launch();4  const page = await browser.newPage();5  await page.screenshot({path: 'example.png'});6  await browser.close();7})();8const puppeteer = require('puppeteer');9(async () => {10  const browser = await puppeteer.launch();11  const page = await browser.newPage();12  await page.screenshot({path: 'example.png'});13  await browser.close();14})();15const puppeteer = require('puppeteer');16(async () => {17  const browser = await puppeteer.launch();18  const page = await browser.newPage();19  await page.screenshot({path: 'example.png'});20  await browser.close();21})();22const puppeteer = require('puppeteer');23(async () => {24  const browser = await puppeteer.launch();25  const page = await browser.newPage();26  await page.screenshot({path: 'example.png'});27  await browser.close();28})();29const puppeteer = require('puppeteer');30(async () => {31  const browser = await puppeteer.launch();32  const page = await browser.newPage();33  await page.screenshot({path: 'example.png'});34  await browser.close();35})();36const puppeteer = require('puppeteer');37(async () => {38  const browser = await puppeteer.launch();39  const page = await browser.newPage();40  await page.screenshot({path: 'example.png'});41  await browser.close();42})();43const puppeteer = require('puppeteer');44(async () => {45  const browser = await puppeteer.launch();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3(async () => {4  const browser = await puppeteer.launch();5  const page = await browser.newPage();6  const doc = await page.content();7  fs.writeFile('example.com.html', doc, (err) => {8    if (err) throw err;9    console.log('The file has been saved!');10  });11  await browser.close();12})();13The page.content() method r

Using AI Code Generation

1const puppeteer = require('puppeteer');2(async () => {3  const browser = await puppeteer.launch();4  const page = await browser.newPage();5  const currentHTML = await page.content();6  const previousHTML = await page.content();7  const result = await page.compareDocumentPosition(currentHTML, previousHTML);8  console.log(result);9  await browser.close();10})();

Using AI Code Generation

1(async () => {2  const browser = await puppeteer.launch({headless: false});3  const page = await browser.newPage();4  const documentation = await page.compareDocumentations();5  console.log(documentation);6  await browser.close();7})();8(async () => {9  const browser = await puppeteer.launch({headless: false});10  const page = await browser.newPage();11  console.log(documentation);12  await browser.close();13})();14(async () => {15  const browser = await puppeteer.launch({headless: false});16  const page = await browser.newPage();17  console.log(documentation);18  await browser.close();19})();20(async () => {21  const browser = await puppeteer.launch({headless: false});22  const page = await browser.newPage();23  console.log(documentation);24  await browser.close();25})();26(async () => {27  const browser = await puppeteer.launch({headless: false});28  const page = await browser.newPage();29  console.log(documentation);30  await browser.close();31})();32(async () => {33  const browser = await puppeteer.launch({headless: false});34  const page = await browser.newPage();

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3const path = require('path');4const { promisify } = require('util');5const readFileAsync = promisify(fs.readFile);6const writeFileAsync = promisify(fs.writeFile);7const mkdirAsync = promisify(fs.mkdir);8const rimraf = promisify(require('rimraf'));9(async () => {10  const browser = await puppeteer.launch();11  const page = await browser.newPage();12  const doc1 = await page.content();13  const doc2 = await page.content();14  const outputDir = path.join(__dirname, 'output');15  await rimraf(outputDir);16  await mkdirAsync(outputDir);17  await writeFileAsync(path.join(outputDir, 'doc1.html'), doc1);18  await writeFileAsync(path.join(outputDir, 'doc2.html'), doc2);19  const data = await page.compareDocumentations({20    baseline: path.join(outputDir, 'doc1.html'),21    current: path.join(outputDir, 'doc2.html'),22  });23  await browser.close();24  console.log(data);25})();26const puppeteer = require('puppeteer');27const fs = require('fs');28const path = require('path');29const { promisify } = require('util');30const readFileAsync = promisify(fs.readFile);31const writeFileAsync = promisify(fs.writeFile);32const mkdirAsync = promisify(fs.mkdir);33const rimraf = promisify(require('rimraf'));34(async () => {35  const browser = await puppeteer.launch();36  const page = await browser.newPage();37  const doc1 = await page.content();

Using AI Code Generation

1(async () => {2  const browser = await puppeteer.launch();3  const page = await browser.newPage();4  const doc = await page.content();5  const doc2 = await page.content();6  const result = await page.compareDocumentations(doc, doc2);7  console.log(result);8  await browser.close();9})();10Recommended Posts: Puppeteer | waitForNavigation() method11Puppeteer | waitForXPath() method12Puppeteer | waitForRequest() method13Puppeteer | waitForResponse() method14Puppeteer | waitForFunction() method15Puppeteer | waitFor() method16Puppeteer | setViewport() method17Puppeteer | setJavaScriptEnabled() method18Puppeteer | setExtraHTTPHeaders() method19Puppeteer | setDefaultNavigationTimeout() method20Puppeteer | setDefaultTimeout() method21Puppeteer | setCacheEnabled() method22Puppeteer | setUserAgent() method23Puppeteer | setRequestInterception() method24Puppeteer | setOfflineMode() method25Puppeteer | setGeolocation() method26Puppeteer | setFileChooserIntercepted() method27Puppeteer | setExtraHTTPHeaders() method28Puppeteer | setBypassCSP() method29Puppeteer | setOfflineMode() method30Puppeteer | setJavaScriptEnabled() method31Puppeteer | setDefaultTimeout() method32Puppeteer | setDefaultNavigationTimeout() method33Puppeteer | setCacheEnabled() method

Using AI Code Generation

1const puppeteer = require('puppeteer');2const fs = require('fs');3const path = require('path');4const { PNG } = require('pngjs');5const pixelmatch = require('pixelmatch');6const { parse } = require('url');7const compareDocumentations = async (url1, url2) => {8  const browser = await puppeteer.launch();9  const page = await browser.newPage();10  await page.goto(url1);11  await page.waitForSelector('.content');12  await page.waitForTimeout(1000);13  const screenshot1 = await page.screenshot();14  await page.goto(url2);15  await page.waitForSelector('.content');16  await page.waitForTimeout(1000);17  const screenshot2 = await page.screenshot();18  await browser.close();19  const img1 = PNG.sync.read(screenshot1);20  const img2 = PNG.sync.read(screenshot2);21  const { width, height } = img1;22  const diff = new PNG({ width, height });23  const numDiffPixels = pixelmatch(24    { threshold: 0.1 }25  );26  console.log({ numDiffPixels });27  if (numDiffPixels > 0) {28    const diffPath = path.join(__dirname, 'diff.png');29    fs.writeFileSync(diffPath, PNG.sync.write(diff));30  }31};32compareDocumentations(33);34{35  "scripts": {36  },37  "dependencies": {38  }39}40{ numDiffPixels: 0 }

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