Package testutils provides utilities for testing Go applications Package testutils provides a collection of utilities for testing Go applications including stdout/stderr capture, file handling, HTTP test helpers, and test containers. It consists of several main components: Capture Utilities: File Utilities: HTTP Utilities: Test Containers: The 'containers' subpackage provides Docker containers for integration testing: All container implementations support a common pattern: These utilities help simplify test setup, improve test reliability, and reduce boilerplate code in test suites, especially for integration tests.