How to exclude test categories by default for ‘dotnet test’ CLI
Exclude test categories from "dotnet test" by default via a TestCaseFilter in your .runsettings file.
Record type gotcha with FluentAssertions 5
Use version 6+ of FluentAssertions when asserting equality of record types with collections in them.
Use Collection Initializers To Simplify Tedious Mapping and Validation Tests
With custom collection initializers, you can avoid writing repetitive test methods for mappers, converters and validators by using parameterized tests with type-safe yet generic test samples based on expressions and corresponding values.
Improve your parameterized Tests with named ValueTuples
For parameterized tests, declare your samples as value tuple array and subsequently "Select" it to IEnumerable to be type-safe, concise and descriptive.