NormData Refactor (#30)

* Switched NormData Data property to a method

* Corrected NormData summary comment

* Updated NormData GetData to use Marshal.Copy

* Fixed warnings

* Updated NormData design

src/dotnet/design/Mil/Navy/Nrl/Norm/NormData.puml

@@ -1,7 +1,7 @@
 @startuml
 class NormData {
     ~ NormData(handle:long)
-    + byte[] Data <<get>>   
+    + byte[] GetData()
 }
 NormObject <|-- NormData
 @enduml

src/dotnet/src/Mil.Navy.Nrl.Norm/NormData.cs

@@ -3,7 +3,7 @@
 namespace Mil.Navy.Nrl.Norm
 {
     /// <summary>
-    /// A transport object of type NORM_OBJECT_FILE.
+    /// A transport object of type NORM_OBJECT_DATA.
     /// </summary>
     /// <remarks>
     /// The data storage area for the specified transport object.
@@ -11,22 +11,16 @@ namespace Mil.Navy.Nrl.Norm
     public class NormData : NormObject
     {
         /// <summary>
-        /// The data storage area associated with a transport object of type NORM_OBJECT_DATA.
+        /// Get the data storage area associated with a transport object of type NORM_OBJECT_DATA.
         /// </summary>
-        public byte[] Data
+        public byte[] GetData()
-        {
-            get
         {
             var dataPointer = NormDataAccessData(_handle);
             var length = NormObjectGetSize(_handle);
             var data = new byte[length];
-                for (var i = 0; i < length; i++)
+            Marshal.Copy(dataPointer, data, 0, length);
-                {
-                    data[i] = Marshal.ReadByte(dataPointer, i);
-                }
             return data;
         }
-        }
 
         /// <summary>
         /// Constructor of NormData

src/dotnet/tests/Mil.Navy.Nrl.Norm.IntegrationTests/NormSessionTests.cs

@@ -93,7 +93,7 @@ namespace Mil.Navy.Nrl.Norm.IntegrationTests
             if (_isReceiverStarted && !_isReceiverStopped)
             {
                 _normSession.StopReceiver();
-                _isSenderStopped = true;
+                _isReceiverStopped = true;
             }
         }
 
@@ -412,7 +412,7 @@ namespace Mil.Navy.Nrl.Norm.IntegrationTests
                 var expectedEventTypes = new List<NormEventType> { NormEventType.NORM_TX_OBJECT_SENT, NormEventType.NORM_TX_QUEUE_EMPTY };
                 var actualEventTypes = GetEvents().Select(e => e.Type).ToList();
                 Assert.Equal(expectedEventTypes, actualEventTypes);
-                var actualData = normData.Data;
+                var actualData = normData.GetData();
                 Assert.Equal(expectedData, actualData);
                 var actualContent = Encoding.ASCII.GetString(actualData);
                 Assert.Equal(expectedContent, actualContent);
@@ -464,9 +464,9 @@ namespace Mil.Navy.Nrl.Norm.IntegrationTests
                 Assert.Equivalent(expectedEventTypes, actualEventTypes);
 
                 var actualEvent = actualEvents.FirstOrDefault(e => e.Type == NormEventType.NORM_RX_OBJECT_COMPLETED);
-                var actualNormData = Assert.IsType<NormData>(actualEvent.Object);
+                var actualNormData = Assert.IsType<NormData>(actualEvent?.Object);
                 
-                var actualData = actualNormData.Data;
+                var actualData = actualNormData.GetData();
                 Assert.Equal(expectedData, actualData);
                 var actualContent = Encoding.ASCII.GetString(actualData);
                 Assert.Equal(expectedContent, actualContent);