From 6e16037c9933e175f62feb445ff8bd22d7727285 Mon Sep 17 00:00:00 2001
From: Jon Skeet <jonskeet@google.com>
Date: Sat, 8 Aug 2015 07:24:28 +0100
Subject: Address review comments.

---
 .../Google.Protobuf.Test/GeneratedMessageTest.cs   | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'csharp/src/Google.Protobuf.Test/GeneratedMessageTest.cs')

diff --git a/csharp/src/Google.Protobuf.Test/GeneratedMessageTest.cs b/csharp/src/Google.Protobuf.Test/GeneratedMessageTest.cs
index 6fdd1066..575d4586 100644
--- a/csharp/src/Google.Protobuf.Test/GeneratedMessageTest.cs
+++ b/csharp/src/Google.Protobuf.Test/GeneratedMessageTest.cs
@@ -629,5 +629,27 @@ namespace Google.Protobuf
             var data = new byte[] { 130, 3, 1 };            
             Assert.Throws<InvalidProtocolBufferException>(() => TestAllTypes.Parser.ParseFrom(data));
         }
+
+        /// <summary>
+        /// Demonstrates current behaviour with an extraneous end group tag - see issue 688
+        /// for details; we may want to change this.
+        /// </summary>
+        [Test]
+        public void ExtraEndGroupSkipped()
+        {
+            var message = SampleMessages.CreateFullTestAllTypes();
+            var stream = new MemoryStream();
+            var output = new CodedOutputStream(stream);
+
+            output.WriteTag(100, WireFormat.WireType.EndGroup);
+            output.WriteTag(TestAllTypes.SingleFixed32FieldNumber, WireFormat.WireType.Fixed32);
+            output.WriteFixed32(123);
+
+            output.Flush();
+
+            stream.Position = 0;
+            var parsed = TestAllTypes.Parser.ParseFrom(stream);
+            Assert.AreEqual(new TestAllTypes { SingleFixed32 = 123 }, parsed);
+        }
     }
 }
-- 
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