v2.0.0 - Explicit policy assertions

Library.UnitTesting 2.0.0

This release modernizes Library.UnitTesting and moves policy checks out of the base test class into explicit assertion helpers.

Changed

• Replaced FluentAssertions with Shouldly as the preferred assertion library.
• Removed automatic null-guard and async-void checks from UnitTestBase<T>.
• Added explicit policy assertion extensions:
  • ShouldGuardConstructorNulls
  • ShouldGuardMethodNullsAsync
  • ShouldNotContainAsyncVoidMethods
• Enabled nullable reference types.
• Multi-targeted net8.0 and net10.0.
• Updated package metadata and README.
• Replaced StyleCop analyzers with Meziantou.Analyzer.

Breaking changes

• UnitTestBase<T> no longer runs policy tests automatically.
• UnitTestBaseOptions and older TypeTestingExtensions APIs were removed.
• FluentAssertions-specific ItExt overloads were removed.

NuGet

Published to NuGet as Library.UnitTesting version 2.0.0.