Add Result.peek support to TestKit back end

Neo4j.Driver/Neo4j.Driver.Tests.TestBackend/Protocol/Protocol.cs

@@ -41,6 +41,7 @@ public static class Protocol
 									typeof(SessionBeginTransaction),
 									typeof(Result),
 									typeof(ResultNext),
+									typeof(ResultPeek),
 									typeof(ResultConsume),
 									typeof(RetryablePositive),
 									typeof(RetryableNegative),
@@ -69,7 +70,7 @@ public static void ValidateType(string typeName)
 			catch
 			{
 				throw new TestKitProtocolException($"Attempting to use an unrecognized protocol type: {typeName}");
-			}			
+			}
         }
 
 		public static void ValidateType(Type objectType)

Neo4j.Driver/Neo4j.Driver.Tests.TestBackend/Protocol/Result/Result.cs

@@ -41,6 +41,11 @@ public async Task<IRecord> GetNextRecord()
 			return await Task.FromResult<IRecord>(null);
 		}
 
+        public Task<IRecord> PeekRecord()
+        {
+            return ResultCursor.PeekAsync();
+        }
+
 		public async Task<IResultSummary> ConsumeResults()
 		{
 			return await ResultCursor.ConsumeAsync().ConfigureAwait(false);

Neo4j.Driver/Neo4j.Driver.Tests.TestBackend/Protocol/Result/ResultPeek.cs

@@ -0,0 +1,34 @@
+using Newtonsoft.Json;
+using System.Threading.Tasks;
+using System.Linq;
+
+namespace Neo4j.Driver.Tests.TestBackend
+{
+    internal class ResultPeek : IProtocolObject
+    {
+        public ResultPeekType data { get; set; } = new ResultPeekType();
+
+        public IRecord Records { get; set; }
+
+        public class ResultPeekType
+        {
+            public string resultId { get; set; }
+        }
+
+        public override async Task Process()
+        {
+            var result = (Result)ObjManager.GetObject(data.resultId);
+            Records = await result.PeekRecord();
+        }
+
+        public override string Respond()
+        {
+            if (Records is null)
+                return new ProtocolResponse("NullRecord", (object)null).Encode();
+
+            //Generate list of ordered records
+            var valuesList = Records.Keys.Select(v => NativeToCypher.Convert(Records[v]));
+            return new ProtocolResponse("Record", new { values = valuesList }).Encode();
+        }
+    }
+}

Neo4j.Driver/Neo4j.Driver.Tests.TestBackend/SupportedFeatures.cs

@@ -13,9 +13,9 @@ internal static class SupportedFeatures
 		static SupportedFeatures()
 		{
 			FeaturesList.Add("AuthorizationExpiredTreatment");
-			
+
 			FeaturesList.Add("ConfHint:connection.recv_timeout_seconds");
-			
+
 			FeaturesList.Add("Optimization:EagerTransactionBegin");
 
 			FeaturesList.Add("Feature:Auth:Bearer");
@@ -34,7 +34,7 @@ static SupportedFeatures()
 
 			//FeaturesList.Add("Feature:API:SSLSchemes");
 			//FeaturesList.Add("Feature:API:Result.Single");
-			//FeaturesList.Add("Feature:API:Result.Peek");
+			FeaturesList.Add("Feature:API:Result.Peek");
 			//FeaturesList.Add("Feature:API:Result.List");