WebApplicationFactory vs Testcontainers for ASP.NET Core integration tests
Choose an ASP.NET Core integration-test setup by what it must prove: HTTP routing, production database behavior, or the published application image.
testcontainers
2 posts
How to write integration tests against a real SQL Server with Testcontainers
A complete guide to running ASP.NET Core integration tests against a real SQL Server 2022 using Testcontainers 4.11 and EF Core 11: WebApplicationFactory wiring, IAsyncLifetime, swapping the DbContext registration, applying migrations, parallelism, Ryuk cleanup, and CI gotchas.