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How to use writeVideoFrameAsBuffer method in Cypress

Best JavaScript code snippet using cypress

Using AI Code Generation

1describe('Write video frame as buffer', () => {2  it('should write video frame as buffer', () => {3    cy.get('.home-list > :nth-child(1) > a').click()4    cy.writeVideoFrameAsBuffer('frame.png')5  })6})7Cypress.Commands.add('writeVideoFrameAsBuffer', (filename) => {8  const video = Cypress.$('video').get(0)9  const canvas = Cypress.$('<canvas />').get(0)10  const ctx = canvas.getContext('2d')11  ctx.drawImage(video, 0, 0, canvas.width, canvas.height)12  const data = canvas.toDataURL('image/png')13  const buffer = Cypress.Buffer.from(data.replace(/^data:image\/\w+;base64,/, ''), 'base64')14  cy.writeFile(filename, buffer)15})16describe('Write video frame as base64', () => {17  it('should write video frame as base64', () => {18    cy.get('.home-list > :nth-child(1) > a').click()19    cy.writeVideoFrameAsBase64('frame.png')20  })21})22Cypress.Commands.add('writeVideoFrameAsBase64', (filename) => {23  const video = Cypress.$('video').get(0)24  const canvas = Cypress.$('<canvas />').get(0)25  const ctx = canvas.getContext('2d')26  ctx.drawImage(video, 0, 0, canvas.width, canvas.height)27  const data = canvas.toDataURL('image/png')28  cy.writeFile(filename, data)29})

Using AI Code Generation

1const fs = require('fs');2const path = require('path');3const videoName = 'video.mp4';4const frameName = 'image.png';5describe('Video', () => {6  it('Test', async () => {7    cy.get('.action-email').type('

Using AI Code Generation

1describe('test', () => {2    it('test', () => {3        cy.wait(5000)4        cy.get('input[type="text"]').type('test')5        cy.wait(5000)6        cy.get('input[type="submit"]').click()7        cy.wait(5000)8        cy.get('h3').should('be.visible')9        cy.wait(5000)10        cy.screenshot()11        cy.wait(5000)12        cy.writeVideoFrameAsBuffer('base64').then((videoFrame) => {13            cy.writeFile('videoFrame.txt', videoFrame)14        })15        cy.wait(5000)16    })17})18{19}20cy.screenshot()21cy.wait(5000)22cy.writeVideoFrameAsBuffer('base64').then((videoFrame) => {23cy.writeFile('videoFrame.txt', videoFrame)24})25cy.wait(5000)

Using AI Code Generation

1const fs = require('fs');2const videoCapture = new Cypress.VideoCapture();3const frameBuffer = videoCapture.writeVideoFrameAsBuffer('path/to/video.mp4', 10);4fs.writeFileSync('path/to/frame.png', frameBuffer);5const fs = require('fs');6const videoCapture = new Cypress.VideoCapture();7const frameBuffer = videoCapture.writeVideoFrameAsBuffer('path/to/video.mp4', 10);8fs.writeFileSync('path/to/frame.png', frameBuffer);9const fs = require('fs');10const videoCapture = new Cypress.VideoCapture();11const frameBuffer = videoCapture.writeVideoFrameAsBuffer('path/to/video.mp4', 10);12fs.writeFileSync('path/to/frame.png', frameBuffer);13const fs = require('fs');14const videoCapture = new Cypress.VideoCapture();15const frameBuffer = videoCapture.writeVideoFrameAsBuffer('path/to/video.mp4', 10);16fs.writeFileSync('path/to/frame.png', frameBuffer);17const fs = require('fs');18const videoCapture = new Cypress.VideoCapture();19const frameBuffer = videoCapture.writeVideoFrameAsBuffer('path/to/video.mp4', 10);20fs.writeFileSync('path/to/frame.png', frameBuffer);21const fs = require('fs');22const videoCapture = new Cypress.VideoCapture();23const frameBuffer = videoCapture.writeVideoFrameAsBuffer('path/to/video.mp4', 10);24fs.writeFileSync('path/to/frame.png', frameBuffer);25const fs = require('fs');

Using AI Code Generation

1const fs = require('fs')2describe('Video Test', () => {3  it('test', () => {4    cy.wait(5000)5    cy.writeVideoFrameAsBuffer()6      .then(buffer => {7        fs.writeFileSync('video-frame.png', buffer)8      })9  })10})11Cypress.Commands.add('writeVideoFrameAsBuffer', () => {12  return cy.window().then(win => {13    return win.Cypress.automation('writeVideoFrameAsBuffer')14  })15})16module.exports = (on, config) => {17  on('task', {18    writeVideoFrameAsBuffer() {19      return new Promise((resolve, reject) => {20        const video = document.querySelector('video')21        const canvas = document.createElement('canvas')22        const ctx = canvas.getContext('2d')23        ctx.drawImage(video, 0, 0)24        canvas.toBlob(blob => {25          const reader = new FileReader()26          reader.onloadend = () => {27            const buffer = Buffer.from(new Uint8Array(reader.result))28            resolve(buffer)29          }30          reader.readAsArrayBuffer(blob)31        })32      })33    }34  })35}36fs.writeFileSync('video-frame.png', buffer)

Using AI Code Generation

1const fs = require('fs');2describe('Test', () => {3  it('should save video frame as buffer', () => {4    cy.get('video').then($video => {5      const video = $video[0];6      const frameBuffer = video.writeVideoFrameAsBuffer();7      fs.writeFileSync('test.png', frameBuffer);8    });9  });10});11Note: This method is not available in Cypress 3.0.3 (the current version at the time of writing this article). This method is available in Cypress 3.1.0 which is in the alpha stage. So, you will need to install Cypress 3.1.0 to use this method. You can do this by using the following command:

Using AI Code Generation

1const videoFrame = Cypress.mocha.getRunner().suite.ctx.test.videoFrame2const frameBuffer = videoFrame.writeVideoFrameAsBuffer(0)3const frameBuffer = videoFrame.writeVideoFrameAsBuffer(1)4const frameBuffer = videoFrame.writeVideoFrameAsBuffer(2)5const frameBuffer = videoFrame.writeVideoFrameAsBuffer(3)6const videoFrame = Cypress.mocha.getRunner().suite.ctx.test.videoFrame7const frameBuffer = videoFrame.writeVideoFrameAsFile(0)8const frameBuffer = videoFrame.writeVideoFrameAsFile(1)9const frameBuffer = videoFrame.writeVideoFrameAsFile(2)10const frameBuffer = videoFrame.writeVideoFrameAsFile(3)11const videoFrame = Cypress.mocha.getRunner().suite.ctx.test.videoFrame12const frameBase64 = videoFrame.writeVideoFrameAsBase64(0)13const frameBase64 = videoFrame.writeVideoFrameAsBase64(1)14const frameBase64 = videoFrame.writeVideoFrameAsBase64(2)15const frameBase64 = videoFrame.writeVideoFrameAsBase64(3)16const videoFrame = Cypress.mocha.getRunner().suite.ctx.test.videoFrame17const frameBase64 = videoFrame.writeVideoFrameAsBase64(0)18const frameBase64 = videoFrame.writeVideoFrameAsBase64(1)19const frameBase64 = videoFrame.writeVideoFrameAsBase64(2)20const frameBase64 = videoFrame.writeVideoFrameAsBase64(3)21const videoFrame = Cypress.mocha.getRunner().suite.ctx.test.videoFrame22const frameBase64 = videoFrame.writeVideoFrameAsBase64(0)23const frameBase64 = videoFrame.writeVideoFrameAsBase64(1)24const frameBase64 = videoFrame.writeVideoFrameAsBase64(2)

Cypress Tutorial

Cypress is a renowned Javascript-based open-source, easy-to-use end-to-end testing framework primarily used for testing web applications. Cypress is a relatively new player in the automation testing space and has been gaining much traction lately, as evidenced by the number of Forks (2.7K) and Stars (42.1K) for the project. LambdaTest’s Cypress Tutorial covers step-by-step guides that will help you learn from the basics till you run automation tests on LambdaTest.

Chapters:

What is Cypress? -
Why Cypress? - Learn why Cypress might be a good choice for testing your web applications.
Features of Cypress Testing - Learn about features that make Cypress a powerful and flexible tool for testing web applications.
Cypress Drawbacks - Although Cypress has many strengths, it has a few limitations that you should be aware of.
Cypress Architecture - Learn more about Cypress architecture and how it is designed to be run directly in the browser, i.e., it does not have any additional servers.
Browsers Supported by Cypress - Cypress is built on top of the Electron browser, supporting all modern web browsers. Learn browsers that support Cypress.
Selenium vs Cypress: A Detailed Comparison - Compare and explore some key differences in terms of their design and features.
Cypress Learning: Best Practices - Take a deep dive into some of the best practices you should use to avoid anti-patterns in your automation tests.
How To Run Cypress Tests on LambdaTest? - Set up a LambdaTest account, and now you are all set to learn how to run Cypress tests.

Certification

You can elevate your expertise with end-to-end testing using the Cypress automation framework and stay one step ahead in your career by earning a Cypress certification. Check out our Cypress 101 Certification.