Working with test containers
Testcontainers is a library that supports integration tests, using Docker containers to simulate external services and systems. Originally developed for Java, Testcontainers has seen adaptations in several programming languages, including .NET, thanks to its powerful concept and flexibility. Testcontainers for .NET is a managed implementation that leverages Docker to create lightweight, disposable instances of databases, browsers, or anything else that can run in a Docker container, directly from .NET test code.
How Testcontainers for .NET works
The core idea behind Testcontainers is to use Docker containers to provide external dependencies required by integration tests, such as:
- Databases, for example, SQL Server, PostgreSQL, MongoDB
- Caches, for example, Redis
- Messaging systems, for example, RabbitMQ
- Web browsers for Playwright and other web automation tests
- Any other service that can be containerized