1 files changed, 90 insertions, 0 deletions
diff --git a/csharp/src/ProtocolBuffers.Test/MessageStreamIteratorTest.cs b/csharp/src/ProtocolBuffers.Test/MessageStreamIteratorTest.cs
new file mode 100644
index 00000000..4754ce60
--- /dev/null
+++ b/csharp/src/ProtocolBuffers.Test/MessageStreamIteratorTest.cs
@@ -0,0 +1,90 @@
+#region Copyright notice and license
+
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// http://github.com/jskeet/dotnet-protobufs/
+// Original C++/Java/Python code:
+// http://code.google.com/p/protobuf/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System.Collections.Generic;
+using System.IO;
+using Google.ProtocolBuffers.TestProtos;
+using NUnit.Framework;
+using NestedMessage = Google.ProtocolBuffers.TestProtos.TestAllTypes.Types.NestedMessage;
+
+namespace Google.ProtocolBuffers
+{
+    public class MessageStreamIteratorTest
+    {
+        [Test]
+        public void ThreeMessagesInMemory()
+        {
+            MemoryStream stream = new MemoryStream(MessageStreamWriterTest.ThreeMessageData);
+            IEnumerable<NestedMessage> iterator = MessageStreamIterator<NestedMessage>.FromStreamProvider(() => stream);
+            List<NestedMessage> messages = new List<NestedMessage>(iterator);
+
+            Assert.AreEqual(3, messages.Count);
+            Assert.AreEqual(5, messages[0].Bb);
+            Assert.AreEqual(1500, messages[1].Bb);
+            Assert.IsFalse(messages[2].HasBb);
+        }
+
+        [Test]
+        public void ManyMessagesShouldNotTriggerSizeAlert()
+        {
+            int messageSize = TestUtil.GetAllSet().SerializedSize;
+            // Enough messages to trigger the alert unless we've reset the size
+            // Note that currently we need to make this big enough to copy two whole buffers,
+            // as otherwise when we refill the buffer the second type, the alert triggers instantly.
+            int correctCount = (CodedInputStream.BufferSize*2)/messageSize + 1;
+            using (MemoryStream stream = new MemoryStream())
+            {
+                MessageStreamWriter<TestAllTypes> writer = new MessageStreamWriter<TestAllTypes>(stream);
+                for (int i = 0; i < correctCount; i++)
+                {
+                    writer.Write(TestUtil.GetAllSet());
+                }
+                writer.Flush();
+
+                stream.Position = 0;
+
+                int count = 0;
+                foreach (var message in MessageStreamIterator<TestAllTypes>.FromStreamProvider(() => stream)
+                    .WithSizeLimit(CodedInputStream.BufferSize*2))
+                {
+                    count++;
+                    TestUtil.AssertAllFieldsSet(message);
+                }
+                Assert.AreEqual(correctCount, count);
+            }
+        }
+    }
+}
+\ No newline at end of file