Leveraging Go testcontainers for End-to-End Testing
End-to-end (E2E) testing is crucial for ensuring the integrity and reliability of complex systems composed of multiple services and databases. One of the challenges in E2E testing is the setup and teardown of the testing environment, which often involves starting and configuring several containers. Go testcontainers-go library simplifies this process, enabling developers to programmatically manage containers and networks, ensuring isolated and consistent test environments.
This article explores the use of Go testcontainers in creating and managing containers for different modules, configuring networks for inter-container communication, and testing database access within these containers.
Project Description
My Go web project involves multiple external dependencies, including a Keycloak server and an OpenFGA client, and connects to OpenFGA database for custom queries. As is shown below, each component has its own PostgreSQL database.
For end-to-end testing, multiple Postgres databases are implemented and configured into web, Keycloak and OpenFGA respectively, so mutual access between services in the…
