feature request for documentation: add test examples

[draptik]

As user of this framework I would like some guidance / best practices for writing tests.

What are typical integration or unit tests one might write (with examples in documentation)?

In C# one might consider using the WebApplicationFactory<T> approach.

https://docs.microsoft.com/en-us/aspnet/core/test/integration-tests?view=aspnetcore-5.0

Is also reasonable here?

Don said it's ok to mention this tweet: https://twitter.com/dsymetweets/status/1417417949233795082