This is the content analogue of https://github.com/space-wizards/RobustToolbox/pull/5412
Made Content.Tests run tests parallelized, which doesn't really seem to matter much.
I tried to make Content.IntegrationTest more aggressively parallelized but ran into https://github.com/dotnet/runtime/issues/107197 so we need to shelve that. Added a comment explaining as such.
--- /dev/null
+[assembly: Parallelizable(ParallelScope.Children)]
+
+// I don't know why this parallelism limit was originally put here.
+// I *do* know that I tried removing it, and ran into the following .NET runtime problem:
+// https://github.com/dotnet/runtime/issues/107197
+// So we can't really parallelize integration tests harder either until the runtime fixes that,
+// *or* we fix serv3 to not spam expression trees.
+[assembly: LevelOfParallelism(3)]
using Robust.Shared.Timing;
using Robust.UnitTesting;
-[assembly: LevelOfParallelism(3)]
-
namespace Content.IntegrationTests;
/// <summary>
-
-[assembly: Parallelizable(ParallelScope.Children)]
-
-namespace Content.IntegrationTests;
+namespace Content.IntegrationTests;
[SetUpFixture]
public sealed class PoolManagerTestEventHandler
--- /dev/null
+using NUnit.Framework;
+
+[assembly: Parallelizable(ParallelScope.Fixtures)]