Better communication

Gameboard.ShogiUI.Sockets.UnitTests/Models/CoordsModelShould.cs

@@ -0,0 +1,27 @@
+using FluentAssertions;
+using Gameboard.ShogiUI.Sockets.Models;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+namespace Gameboard.ShogiUI.Sockets.UnitTests.Models
+{
+  [TestClass]
+  public class CoordsModelShould
+  {
+    [TestMethod]
+    public void ConvertToNotation()
+    {
+      var letters = "ABCDEFGHI";
+
+      for (var x = 0; x < 8; x++) // file
+      {
+        for (var y = 0; y < 8; y++) // rank
+        {
+          var move = new Coords(x, y);
+          var actual = move.ToBoardNotation();
+          var expected = $"{letters[x]}{y + 1}";
+          actual.Should().Be(expected);
+        }
+      }
+    }
+  }
+}