What are the most important front-end web development testing methodologies?

2 Integration Testing

Integration testing is the method of testing how different units or components of the front-end code work together as a whole. Integration testing helps to verify the compatibility, communication, and coordination of the units and to identify any issues or conflicts in the integration. Integration testing can be done manually or using automated tools and frameworks such as Cypress, Selenium, Puppeteer, or Protractor. Integration testing is beneficial for ensuring the functionality, reliability, and consistency of the web product.

3 End-to-End Testing

End-to-end testing is the method of testing the entire web product from the user's perspective. End-to-end testing helps to simulate the real-world scenarios and user interactions with the web product and to validate the expected outcomes and behaviors. End-to-end testing can be done manually or using automated tools and frameworks such as Cypress, Selenium, Puppeteer, or Protractor. End-to-end testing is beneficial for ensuring the usability, accessibility, performance, and security of the web product.

4 Visual Testing

Visual testing is the method of testing the visual appearance and layout of the web product across different browsers, devices, and screen sizes. Visual testing helps to compare the actual and expected screenshots of the web pages and to detect any visual bugs or discrepancies in the design. Visual testing can be done manually or using automated tools and frameworks such as Applitools, Percy, or BackstopJS. Visual testing is beneficial for ensuring the responsiveness, compatibility, and aesthetics of the web product.

5 Accessibility Testing

Accessibility testing is the method of testing the web product for its compliance with the web accessibility standards and guidelines such as WCAG, ADA, or Section 508. Accessibility testing helps to evaluate the web product's ability to accommodate the needs and preferences of users with different disabilities or impairments such as visual, auditory, cognitive, or motor. Accessibility testing can be done manually or using automated tools and frameworks such as Axe, WAVE, or Lighthouse. Accessibility testing is beneficial for ensuring the inclusivity, diversity, and ethics of the web product.

6 Performance Testing

Performance testing is the method of testing the web product for its speed, efficiency, and stability under various conditions and loads. Performance testing helps to measure the web product's metrics such as page load time, render time, network latency, memory usage, CPU usage, or battery consumption. Performance testing can be done manually or using automated tools and frameworks such as Lighthouse, WebPageTest, or LoadImpact. Performance testing is beneficial for ensuring the user satisfaction, retention, and conversion of the web product.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?