KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use this.mjpegStream.lastChunkPNGBase64 method in Appium Xcuitest Driver

Best JavaScript code snippet using appium-xcuitest-driver

Using AI Code Generation

1var fs = require('fs');2var PNG = require('pngjs').PNG;3var pixelmatch = require('pixelmatch');4var img1 = fs.createReadStream('./img1.png').pipe(new PNG()).on('parsed', doneReading);5var img2 = fs.createReadStream('./img2.png').pipe(new PNG()).on('parsed', doneReading);6var filesRead = 0;7function doneReading() {8  if (++filesRead < 2) return;9  var diff = new PNG({width: img1.width, height: img1.height});10  var numDiffPixels = pixelmatch(img1.data, img2.data, diff.data, img1.width, img1.height, {threshold: 0.1});11  diff.pack().pipe(fs.createWriteStream('diff.png'));12  console.log('Number of different pixels: ' + numDiffPixels);13}14var image = await driver.takeScreenshot();15var base64Data = image.replace(/^data:image\/png;base64,/, "");16fs.writeFileSync("screenshot.png", base64Data, 'base64');17var base64Data = this.mjpegStream.lastChunkPNGBase64.replace(/^data:image\/png;base64,/, "");18fs.writeFileSync("screenshot.png", base64Data, 'base64');19var img1 = fs.createReadStream('./screenshot.png').pipe(new PNG()).on('parsed', doneReading);20var img2 = fs.createReadStream('./img2.png').pipe(new PNG()).on('parsed', doneReading);21var filesRead = 0;22function doneReading() {23  if (++filesRead < 2) return;24  var diff = new PNG({width: img1.width, height: img1.height});25  var numDiffPixels = pixelmatch(img1.data, img2.data, diff.data, img1.width, img1.height, {threshold: 0.1});26  diff.pack().pipe(fs.createWriteStream('diff.png'));27  console.log('Number of different pixels: ' + numDiffPixels);28}

Using AI Code Generation

1const { execSync } = require('child_process');2const { readFileSync } = require('fs');3const { join } = require('path');4const { PNG } = require('pngjs');5const { expect } = require('chai');6describe('mjpeg stream', () => {7  it('should return a base64 encoded PNG', async () => {8    const { stdout } = execSync('node test.js', {9      cwd: join(__dirname, '..', '..', 'mjpeg-stream'),10    });11    const { width, height } = JSON.parse(stdout);12    const png = PNG.sync.read(Buffer.from(stdout, 'base64'));13    expect(png.width).to.equal(width);14    expect(png.height).to.equal(height);15  });16});17const { createServer } = require('http');18const { createReadStream } = require('fs');19const { join } = require('path');20const { PNG } = require('pngjs');21const { expect } = require('chai');22const { MJpegStream } = require('..');23describe('mjpeg stream', () => {24  it('should return a base64 encoded PNG', async () => {25    const mjpegStream = new MJpegStream({26      server: createServer(),27    });28    await new Promise((resolve) => {29      mjpegStream.server.listen(0, resolve);30    });31    const port = mjpegStream.server.address().port;32    const pngStream = createReadStream(join(__dirname, 'image.png'));33    const png = await new Promise((resolve) => {34      pngStream.pipe(new PNG()).on('parsed', resolve);35    });36    mjpegStream.addFrame(png);37    const res = await new Promise((resolve) => {38      const req = require('http').get(url, (res) => {39        let data = '';40        res.on('data', (chunk) => (data += chunk));41        res.on('end', () => resolve(data));42      });43      req.on('error', (err) => resolve(err));44    });45    const { width, height } = JSON.parse(res);46    const lastChunkPNG = PNG.sync.read(Buffer.from(res, 'base64'));

Using AI Code Generation

1const fs = require('fs');2const PNG = require('pngjs').PNG;3const png = new PNG({filterType: 4});4const base64 = await this.mjpegStream.lastChunkPNGBase64();5const buffer = Buffer.from(base64, 'base64');6png.parse(buffer, function (err, data) {7fs.writeFileSync('test.png', PNG.sync.write(data));8});9}10}11}12Your name to display (optional):13Your name to display (optional):14const fs = require('fs');15const PNG = require('pngjs').PNG;16const png = new PNG({filterType: 4});17const buffer = await this.mjpegStream.lastChunkBuffer();18png.parse(buffer, function (err, data) {19fs.writeFileSync('test.png', PNG.sync.write(data));20});21Your name to display (optional):

Using AI Code Generation

1var fs = require("fs");2var path = require("path");3var PNG = require("pngjs").PNG;4var pixelmatch = require("pixelmatch");5var base64 = require("base64-js");6(async function() {7  var driver = await new Builder().forBrowser("safari").build();8  await driver.sleep(2000);9  var pngBase64 = await driver.mjpegStream.lastChunkPNGBase64();10  var pngBuffer = base64.toByteArray(pngBase64);11  var png = PNG.sync.read(pngBuffer);12  var diff = new PNG({ width: png.width, height: png.height });13  var numDiffPixels = pixelmatch(14    { threshold: 0.1 }15  );16  console.log("numDiffPixels: " + numDiffPixels);17  var diffBuffer = PNG.sync.write(diff);18  fs.writeFileSync(path.join(__dirname, "diff.png"), diffBuffer);19  await driver.quit();20})();21var driver = await new Builder().forBrowser("safari").build();

Using AI Code Generation

1const { exec } = require('child_process')2const fs = require('fs')3const path = require('path')4const filename = path.resolve(__dirname, 'test.png')5exec(cmd, (err, stdout, stderr) => {6  if (err) {7    console.error(err)8  } else {9    console.log(`stdout: ${stdout}`)10    console.log(`stderr: ${stderr}`)11  }12})13  if (err) {14    console.error(err)15  } else {16    console.log(`stdout: ${stdout}`)17    console.log(`stderr: ${stderr}`)18  }19})20  if (err) {21    console.error(err)22  } else {23    console.log(`stdout: ${stdout}`)24    console.log(`

Using AI Code Generation

1const fs = require('fs');2const path = require('path');3const assert = require('assert');4const { remote } = require('webdriverio');5const opts = {6  capabilities: {7  },8};9(async () => {10  const client = await remote(opts);11  const mjpegStream = await client.startScreenStreaming();12  const lastChunk = await mjpegStream.lastChunkPNGBase64();13  console.log(lastChunk);14  const baseline = fs.readFileSync(path.resolve(__dirname, 'baseline.png'), 'base64');15  assert.strictEqual(lastChunk, baseline);16  await client.deleteSession();17})();

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.