2 files changed, 95 insertions, 0 deletions
diff --git a/csharp/src/Google.Protobuf.Test/Google.Protobuf.Test.csproj b/csharp/src/Google.Protobuf.Test/Google.Protobuf.Test.csproj
index cd15b968..903454eb 100644
--- a/csharp/src/Google.Protobuf.Test/Google.Protobuf.Test.csproj
+++ b/csharp/src/Google.Protobuf.Test/Google.Protobuf.Test.csproj
@@ -99,6 +99,7 @@
     <Compile Include="JsonTokenizerTest.cs" />
     <Compile Include="Reflection\DescriptorsTest.cs" />
     <Compile Include="Reflection\FieldAccessTest.cs" />
+    <Compile Include="Reflection\TypeRegistryTest.cs" />
     <Compile Include="SampleEnum.cs" />
     <Compile Include="SampleMessages.cs" />
     <Compile Include="TestProtos\MapUnittestProto3.cs" />
diff --git a/csharp/src/Google.Protobuf.Test/Reflection/TypeRegistryTest.cs b/csharp/src/Google.Protobuf.Test/Reflection/TypeRegistryTest.cs
new file mode 100644
index 00000000..5be7ca23
--- /dev/null
+++ b/csharp/src/Google.Protobuf.Test/Reflection/TypeRegistryTest.cs
@@ -0,0 +1,94 @@
+#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 Google.Protobuf.TestProtos;
+using Google.Protobuf.WellKnownTypes;
+using NUnit.Framework;
+
+namespace Google.Protobuf.Reflection
+{
+    public class TypeRegistryTest
+    {
+        // Most of our tests use messages. Simple test that we really can use files...
+        [Test]
+        public void CreateWithFileDescriptor()
+        {
+            var registry = TypeRegistry.FromFiles(DurationReflection.Descriptor, StructReflection.Descriptor);
+            AssertDescriptorPresent(registry, Duration.Descriptor);
+            AssertDescriptorPresent(registry, ListValue.Descriptor);
+            AssertDescriptorAbsent(registry, Timestamp.Descriptor);
+        }
+
+        [Test]
+        public void TypesFromSameFile()
+        {
+            // Just for kicks, let's start with a nested type
+            var registry = TypeRegistry.FromMessages(TestAllTypes.Types.NestedMessage.Descriptor);
+            // Top-level...
+            AssertDescriptorPresent(registry, TestFieldOrderings.Descriptor);
+            // ... and nested (not the same as the original NestedMessage!)
+            AssertDescriptorPresent(registry, TestFieldOrderings.Types.NestedMessage.Descriptor);
+        }
+
+        [Test]
+        public void DependenciesAreIncluded()
+        {
+            var registry = TypeRegistry.FromMessages(TestAllTypes.Descriptor);
+            // Direct dependencies
+            AssertDescriptorPresent(registry, ImportMessage.Descriptor);
+            // Public dependencies
+            AssertDescriptorPresent(registry, PublicImportMessage.Descriptor);
+        }
+
+        [Test]
+        public void DuplicateFiles()
+        {
+            // Duplicates via dependencies and simply via repetition
+            var registry = TypeRegistry.FromFiles(
+                UnittestProto3Reflection.Descriptor, UnittestImportProto3Reflection.Descriptor,
+                TimestampReflection.Descriptor, TimestampReflection.Descriptor);
+            AssertDescriptorPresent(registry, TestAllTypes.Descriptor);
+            AssertDescriptorPresent(registry, ImportMessage.Descriptor);
+            AssertDescriptorPresent(registry, Timestamp.Descriptor);
+        }
+
+        private static void AssertDescriptorPresent(TypeRegistry registry, MessageDescriptor descriptor)
+        {
+            Assert.AreSame(descriptor, registry.Find(descriptor.FullName));
+        }
+
+        private static void AssertDescriptorAbsent(TypeRegistry registry, MessageDescriptor descriptor)
+        {
+            Assert.IsNull(registry.Find(descriptor.FullName));
+        }
+    }
+}