Amend

tests/BaseTest.cs

@@ -0,0 +1,17 @@
+using System;
+using Skeleton.Algebra;
+
+namespace Skeleton.Test;
+
+public class BaseTest
+{
+    protected static int Seed = 517515;
+
+    protected static class Theory<TDim, TField>
+    {
+        public static readonly Action<CategoryOf<TDim>.OnField<TField>.FMatrix> OnFail 
+            = x => Console.WriteLine(x.CSharpRepresentation);
+    }
+
+    //protected static Action<TMatrix> TheoryOnFail<TMatrix>() = x => Console.WriteLine();
+}