• Add a TUnit-based runner for executing Alchemy tests across Unity 2022.3 and Unity 6000.0/6000.3/6000.5/6000.7.
• Add manual visual-regression captures for inspector UI samples across Unity 6 versions. Unity 2022.3 does not support inspector captures since Unity CLI does not support the version.
• Move the existing Unity tests into dedicated local test packages under tests/Alchemy.Tests.
• Add an HTML capture matrix with screenshots, warnings, errors, and attached Unity logs.

Details

The new runner supports:

• EditMode and PlayMode tests for every registered Unity version;
• Inspector captures: per-capture warning and error collection;
• an interactive HTML report for manual cross-version comparison.

Run the complete suite with:

dotnet run --project tests/UnityTestRunner --configuration Release

Fixed Issues

• Fix Unity 6 compatibility issues discovered by the new test matrix:
  • correct for Unity 6+: bind/unbind/clear on inspectorContainer instead of rebinding the whole field (avoids UI Toolkit binding conflicts);
  • Q<Label>()?.RemoveFromHierarchy() correctly avoids "element is not a child" when the Label is nested under HelpBox.