What testing environments do you use?

During testing, I use the following environments:

• Development: Local developer environment or dedicated server for initial feature testing and integration.
• Testing / QA: Main environment for functional, regression, integration, and other testing before staging.
• Staging: Environment closely resembling production (in configuration, data), used for final verification before deployment.
• Production: Live environment accessible to end users, with testing limited to monitoring and hotfix checks.

For test automation, I can deploy specialized environments with pre-installed agents for CI/CD (e.g., Jenkins slave) or containerized environments (Docker, Kubernetes) for test isolation and reproducibility.

Depending on the project and specifics, other environments like sandbox or demo may also be used.