What types of testing have you been involved in?

In my practice, I have encountered several types of testing:

• Functional testing — verifying that the functionality meets the requirements.
• Regression testing — ensuring that new changes do not break existing functionality.
• Automated testing — writing scripts for automatic test execution, for example, using Selenium or Cypress.
• Performance testing — load testing to evaluate system performance under load.
• Security testing — checking for vulnerabilities and data protection.
• Integration testing — verifying interaction between modules.

For example, to automate functional tests, I wrote tests in JavaScript using Jest and Puppeteer, which allowed for quick UI and business logic verification.