Cypress Tutorial Full Course | Cypress Automation | Learn Cypress in 5 Hrs

Introduction

This tutorial provides a comprehensive guide to using Cypress for automation testing in web applications. Cypress is a popular front-end testing tool that runs on Windows, macOS, and Linux, and is known for its ease of use compared to Selenium. By the end of this tutorial, you will understand how to set up Cypress, write and execute tests, and leverage its features for effective testing.

Step 1: Getting Started with Cypress

• Understand what Cypress is and its advantages:
  • Fast and reliable testing for web applications.
  • Real-time reloads and easy debugging.
  • Automatic waiting for commands.
• Be aware of its limitations, such as being limited to testing web applications and not supporting multi-tab testing.

Step 2: Install Node.js and Visual Studio Code

• Download and install Node.js from the official website.
• Install Visual Studio Code from the official website.
• Verify installation by checking the version of Node.js in the terminal:

  node -v
  

Step 3: Install Cypress

• Open your terminal and navigate to your project directory.
• Run the following command to install Cypress:

  npm install cypress --save-dev
  

• After installation, open Cypress Test Runner with:

  npx cypress open
  

Step 4: Explore the Cypress Folder Structure

• Familiarize yourself with the folder structure that Cypress automatically creates:
  • cypress/: Main folder containing test files.
  • fixtures/: Contains test data.
  • integration/: Where your test specifications live.
  • plugins/: Custom plugins for extending Cypress functionality.
  • support/: Custom commands and reusable code.

Step 5: Write Your First Cypress Automation Test

• Create a new test file in the integration folder (e.g., firstTest.js).
• Write a simple test:

  describe('My First Test', () => {
    it('Visits the Cypress website', () => {
      cy.visit('https://www.cypress.io');
      cy.contains('Documentation').click();
      cy.url().should('include', '/examples');
    });
  });
  

Step 6: Running Tests in Different Browsers

• You can run tests in Chrome, Edge, or Firefox.
• Specify the browser when running tests:

  npx cypress open --browser chrome
  

Step 7: Use Headless Mode for Running Tests

• Run tests without opening the GUI by using headless mode:

  npx cypress run
  

Step 8: Manage Test Logs

• To create logs for your tests:
  • Use cy.log('Your message here'); within your test code.
• This helps in debugging and understanding test flow.

Step 9: Work with Selectors in Cypress

• Use different selectors to target elements:
  • CSS selectors: cy.get('.my-class')
  • IDs: cy.get('#my-id')
  • Use assertions to verify element states.

Step 10: Implement Advanced Features

• Data Driven Testing: Use JSON files to manage test data.
• Page Object Model: Structure your tests for better maintainability.
• Hooks: Implement before, after, beforeEach, and afterEach for setup and teardown.

Conclusion

Cypress is a powerful tool for automating web application tests, offering a user-friendly experience and robust features. Remember to explore its extensive documentation and community resources for advanced use cases. As next steps, consider diving deeper into data-driven testing or integrating Cypress into your CI/CD pipeline to enhance your testing strategy. Happy testing!