This repository contains a sample project that demonstrates how to use TestContainers with .NET.
These are my personal preferences but include how to use it in E2E/integration tests with a real database (PostgreSQL), and also using TestContainers for local development.
This includes how to enable re-use of containers to speed up the test execution and Api startup time.
The most interesting bits are under:
src/Api/TestContainers- Contains the TestContainers setup for the API (specifically setup insrc/Api/TestContainers/TestContainersFactory.cs).tests/Api.Tests/Shared/ApiFixture.cs- Contains the test collection fixture that sets up the shared ApiFactory for all tests.tests/Api.Tests/Shared/ApiFactory.cs- Contains the factory that creates the in-memory API, and uses TestContainers for a shared database, which is reset between each test withRespawn.
This sample project was demoed at a Variantdag at Variant, the slides are included in the repository under slides.pdf (in Norwegian).