Fix bug with updating property value bytes incorrectly

Author: Chrislee187

ZMachineLib.Feature.Tests/ZMachineFeatureTester.cs

@@ -73,7 +73,7 @@ public ZMachineFeatureTester Execute(string command, string outputContains = "")
                                         .ToArray())
                                     );
 
-                                var customMessage = $"Last command ('{_lastCommand}') had an expectation of '{outputString}' that was not met by :\n" +
+                                var customMessage = $"Last command ('{_lastCommand}') expected a response containing '{outputString}'!\nResponse:\n" +
                                                     $"{_outputBetweenCommands}";
 //                                Assert.True(lastExpectationMet, customMessage);
                                 lastExpectationMet.ShouldBeTrue(customMessage);

ZMachineLib/Content/ZProperty.cs

@@ -1,7 +1,9 @@
-using ZMachineLib.Managers;
+using System.Diagnostics;
+using ZMachineLib.Managers;
 
 namespace ZMachineLib.Content
 {
+    [DebuggerDisplay("{Number}")]
     public class ZProperty
     {
         private readonly IMemoryManager _manager;

ZMachineLib/Extensions/ByteHandlingExtensions.cs

@@ -68,15 +68,12 @@ public static uint GetUInt(this Span<byte> bytes)
         public static byte FromBitNumber(this byte bitNumber)
             => (byte) (1 << bitNumber);
 
-        public static byte[] ToByteArray(this ushort value)
-        {
-            var result = new byte[2];
-
-            result[0] = (byte) value;
-            result[1] = (byte) (value >> 8);
-
-            return result;
-        }
+        public static byte[] ToByteArray(this ushort value) 
+            => new byte[2]
+            {
+                (byte) (value >> 8),
+                (byte) value
+            };
 
         public static byte[] ToByteArray(this Stream stream)
         {