CSHARP-942: Throw a NotSupportedException if the Exhaust query flag is used.

Author: rstam

MongoDB.Driver/Communication/Messages/MongoQueryMessage.cs

@@ -78,6 +78,11 @@ internal override void WriteBodyTo(BsonBuffer buffer)
 
         internal override void WriteHeaderTo(BsonBuffer buffer)
         {
+            if ((_flags & QueryFlags.Exhaust) != 0)
+            {
+                throw new NotSupportedException("The Exhaust QueryFlag is not yet supported.");
+            }
+
             base.WriteHeaderTo(buffer);
             buffer.WriteInt32((int)_flags);
             buffer.WriteCString(new UTF8Encoding(false, true), _collectionFullName);

MongoDB.DriverUnitTests/Jira/CSharp942Tests.cs

@@ -0,0 +1,34 @@
+/* Copyright 2010-2014 MongoDB Inc.
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+using System;
+using System.Linq;
+using MongoDB.Driver;
+using NUnit.Framework;
+
+namespace MongoDB.DriverUnitTests.Jira
+{
+    [TestFixture]
+    public class CSharp942Tests
+    {
+        [Test]
+        public void TestExhaustQueryFlagThrowsException()
+        {
+            var collection = Configuration.TestCollection;
+            var cursor = collection.FindAll().SetFlags(QueryFlags.Exhaust);
+            Assert.Throws<NotSupportedException>(() => cursor.ToList());
+        }
+   }
+}

MongoDB.DriverUnitTests/MongoDB.DriverUnitTests.csproj

@@ -134,6 +134,7 @@
     <Compile Include="Jira\CSharp653Tests.cs" />
     <Compile Include="Jira\CSharp714Tests.cs" />
     <Compile Include="Jira\CSharp718Tests.cs" />
+    <Compile Include="Jira\CSharp942Tests.cs" />
     <Compile Include="Jira\CSharp779Tests.cs" />
     <Compile Include="Jira\CSharp801Tests.cs" />
     <Compile Include="Jira\CSharp840Tests.cs" />