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})();

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