yep

Gameboard.ShogiUI.xUnitTests/NotationHelperShould.cs

@@ -0,0 +1,22 @@
+using FluentAssertions;
+using Gameboard.ShogiUI.Sockets.Utilities;
+using System.Numerics;
+using Xunit;
+
+namespace Gameboard.ShogiUI.xUnitTests
+{
+  public class NotationHelperShould
+  {
+    [Fact]
+    public void TranslateVectorsToNotation()
+    {
+      NotationHelper.ToBoardNotation(2, 2).Should().Be("C3");
+    }
+
+    [Fact]
+    public void TranslateNotationToVectors()
+    {
+      NotationHelper.FromBoardNotation("C3").Should().Be(new Vector2(2, 2));
+    }
+  }
+}