Update //third_party/protobuf to version 3.

third_party/protobuf/csharp/src/Google.Protobuf.Test/Compatibility/TypeExtensionsTest.cs

Index: third_party/protobuf/csharp/src/Google.Protobuf.Test/Compatibility/TypeExtensionsTest.cs
diff --git a/third_party/protobuf/csharp/src/Google.Protobuf.Test/Compatibility/TypeExtensionsTest.cs b/third_party/protobuf/csharp/src/Google.Protobuf.Test/Compatibility/TypeExtensionsTest.cs
new file mode 100644
index 0000000000000000000000000000000000000000..f0c8d3bcc6e3d194b9a3fac124ae507773501d56
--- /dev/null
+++ b/third_party/protobuf/csharp/src/Google.Protobuf.Test/Compatibility/TypeExtensionsTest.cs
@@ -0,0 +1,133 @@
+#region Copyright notice and license
+// Protocol Buffers - Google's data interchange format
+// Copyright 2015 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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 NUnit.Framework;
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+
+namespace Google.Protobuf.Compatibility
+{
+    public class TypeExtensionsTest
+    {
+        public class DerivedList : List<string> { }
+        public string PublicProperty { get; set; }
+        private string PrivateProperty { get; set; }
+
+        public void PublicMethod()
+        {
+        }
+
+        private void PrivateMethod()
+        {
+        }
+
+        [Test]
+        [TestCase(typeof(int), true)]
+        [TestCase(typeof(int?), true)]
+        [TestCase(typeof(Nullable<>), true)]
+        [TestCase(typeof(WireFormat.WireType), true)]
+        [TestCase(typeof(string), false)]
+        [TestCase(typeof(object), false)]
+        [TestCase(typeof(Enum), false)]
+        [TestCase(typeof(ValueType), false)]
+        [TestCase(typeof(TypeExtensionsTest), false)]
+        [TestCase(typeof(Action), false)]
+        [TestCase(typeof(Action<>), false)]
+        [TestCase(typeof(IDisposable), false)]
+        public void IsValueType(Type type, bool expected)
+        {
+            Assert.AreEqual(expected, TypeExtensions.IsValueType(type));
+        }
+
+        [Test]
+        [TestCase(typeof(object), typeof(string), true)]
+        [TestCase(typeof(object), typeof(int), true)]
+        [TestCase(typeof(string), typeof(string), true)]
+        [TestCase(typeof(string), typeof(object), false)]
+        [TestCase(typeof(string), typeof(int), false)]
+        [TestCase(typeof(int), typeof(int), true)]
+        [TestCase(typeof(ValueType), typeof(int), true)]
+        [TestCase(typeof(long), typeof(int), false)] // 
+        public void IsAssignableFrom(Type target, Type argument, bool expected)
+        {
+            Assert.AreEqual(expected, TypeExtensions.IsAssignableFrom(target, argument));
+        }
+
+        [Test]
+        [TestCase(typeof(DerivedList), "Count")] // Go up the type hierarchy
+        [TestCase(typeof(List<string>), "Count")]
+        [TestCase(typeof(List<>), "Count")]
+        [TestCase(typeof(TypeExtensionsTest), "PublicProperty")]
+        public void GetProperty_Success(Type type, string name)
+        {
+            var property = TypeExtensions.GetProperty(type, name);
+            Assert.IsNotNull(property);
+            Assert.AreEqual(name, property.Name);
+        }
+
+        [Test]
+        [TestCase(typeof(TypeExtensionsTest), "PrivateProperty")]
+        [TestCase(typeof(TypeExtensionsTest), "Garbage")]
+        public void GetProperty_NoSuchProperty(Type type, string name)
+        {
+            var property = TypeExtensions.GetProperty(type, name);
+            Assert.IsNull(property);
+        }
+
+        [Test]
+        [TestCase(typeof(DerivedList), "RemoveAt")] // Go up the type hierarchy
+        [TestCase(typeof(List<>), "RemoveAt")]
+        [TestCase(typeof(TypeExtensionsTest), "PublicMethod")]
+        public void GetMethod_Success(Type type, string name)
+        {
+            var method = TypeExtensions.GetMethod(type, name);
+            Assert.IsNotNull(method);
+            Assert.AreEqual(name, method.Name);
+        }
+
+        [Test]
+        [TestCase(typeof(TypeExtensionsTest), "PrivateMethod")]
+        [TestCase(typeof(TypeExtensionsTest), "GarbageMethod")]
+        public void GetMethod_NoSuchMethod(Type type, string name)
+        {
+            var method = TypeExtensions.GetMethod(type, name);
+            Assert.IsNull(method);
+        }
+
+        [Test]
+        [TestCase(typeof(List<string>), "IndexOf")]
+        public void GetMethod_Ambiguous(Type type, string name)
+        {
+            Assert.Throws<AmbiguousMatchException>(() => TypeExtensions.GetMethod(type, name));
+        }
+    }
+}