Unit Testing

If your unit tests don't touch the base application, you shouldn't have to carry it. Sub-extensions make that possible — and the performance difference is not subtle.

A standalone CLI tool that transpiles your AL source to C#, rewrites BC runtime types to in-memory mocks, and executes your test codeunits in seconds — no container, no SQL Server, no license required.

Learn how AL interfaces work in Business Central: enum+interface patterns, testability with fake implementations, and the new interface extension syntax

Practical AL unit testing techniques: temporary records, BindSubscription, interface mocks, and actionable ErrorInfo — applied to a real AppSource

Why automated testing matters in Business Central projects — the case for treating tests as quality insurance, not an optional extra that customers won't