csharp/src/ProtocolBuffers.Test/DescriptorsTest.cs - third_party/github/protocolbuffers/protobuf - Git at Google

 #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.Text;
 using Google.ProtocolBuffers.Descriptors;
 using Google.ProtocolBuffers.TestProtos;
 using Microsoft.VisualStudio.TestTools.UnitTesting;

 namespace Google.ProtocolBuffers
 {
     /// <summary>
     /// Tests for descriptors. (Not in its own namespace or broken up into individual classes as the
     /// size doesn't warrant it. On the other hand, this makes me feel a bit dirty...)
     /// </summary>
     [TestClass]
     public class DescriptorsTest
     {
         [TestMethod]
         public void FileDescriptor()
         {
             FileDescriptor file = UnitTestProtoFile.Descriptor;

             Assert.AreEqual("google/protobuf/unittest.proto", file.Name);
             Assert.AreEqual("protobuf_unittest", file.Package);

             Assert.AreEqual("UnittestProto", file.Options.JavaOuterClassname);
             Assert.AreEqual("google/protobuf/unittest.proto", file.Proto.Name);

 // TODO(jonskeet): Either change to expect 2 dependencies, or don't emit them.
 //      Assert.AreEqual(2, file.Dependencies.Count);
             Assert.AreEqual(UnitTestImportProtoFile.Descriptor, file.Dependencies[1]);

             MessageDescriptor messageType = TestAllTypes.Descriptor;
             Assert.AreEqual(messageType, file.MessageTypes[0]);
             Assert.AreEqual(messageType, file.FindTypeByName<MessageDescriptor>("TestAllTypes"));
             Assert.IsNull(file.FindTypeByName<MessageDescriptor>("NoSuchType"));
             Assert.IsNull(file.FindTypeByName<MessageDescriptor>("protobuf_unittest.TestAllTypes"));
             for (int i = 0; i < file.MessageTypes.Count; i++)
             {
                 Assert.AreEqual(i, file.MessageTypes[i].Index);
             }

             Assert.AreEqual(file.EnumTypes[0], file.FindTypeByName<EnumDescriptor>("ForeignEnum"));
             Assert.IsNull(file.FindTypeByName<EnumDescriptor>("NoSuchType"));
             Assert.IsNull(file.FindTypeByName<EnumDescriptor>("protobuf_unittest.ForeignEnum"));
             Assert.AreEqual(1, UnitTestImportProtoFile.Descriptor.EnumTypes.Count);
             Assert.AreEqual("ImportEnum", UnitTestImportProtoFile.Descriptor.EnumTypes[0].Name);
             for (int i = 0; i < file.EnumTypes.Count; i++)
             {
                 Assert.AreEqual(i, file.EnumTypes[i].Index);
             }

             ServiceDescriptor service = TestGenericService.Descriptor;
             Assert.AreEqual(service, UnitTestGenericServices.Descriptor.Services[0]);
             Assert.AreEqual(service,
                             UnitTestGenericServices.Descriptor.FindTypeByName<ServiceDescriptor>("TestGenericService"));
             Assert.IsNull(UnitTestGenericServices.Descriptor.FindTypeByName<ServiceDescriptor>("NoSuchType"));
             Assert.IsNull(
                 UnitTestGenericServices.Descriptor.FindTypeByName<ServiceDescriptor>(
                     "protobuf_unittest.TestGenericService"));
             Assert.AreEqual(0, UnitTestImportProtoFile.Descriptor.Services.Count);
             for (int i = 0; i < file.Services.Count; i++)
             {
                 Assert.AreEqual(i, file.Services[i].Index);
             }

             FieldDescriptor extension = UnitTestProtoFile.OptionalInt32Extension.Descriptor;
             Assert.AreEqual(extension, file.Extensions[0]);
             Assert.AreEqual(extension, file.FindTypeByName<FieldDescriptor>("optional_int32_extension"));
             Assert.IsNull(file.FindTypeByName<FieldDescriptor>("no_such_ext"));
             Assert.IsNull(file.FindTypeByName<FieldDescriptor>("protobuf_unittest.optional_int32_extension"));
             Assert.AreEqual(0, UnitTestImportProtoFile.Descriptor.Extensions.Count);
             for (int i = 0; i < file.Extensions.Count; i++)
             {
                 Assert.AreEqual(i, file.Extensions[i].Index);
             }
         }

         [TestMethod]
         public void MessageDescriptor()
         {
             MessageDescriptor messageType = TestAllTypes.Descriptor;
             MessageDescriptor nestedType = TestAllTypes.Types.NestedMessage.Descriptor;

             Assert.AreEqual("TestAllTypes", messageType.Name);
             Assert.AreEqual("protobuf_unittest.TestAllTypes", messageType.FullName);
             Assert.AreEqual(UnitTestProtoFile.Descriptor, messageType.File);
             Assert.IsNull(messageType.ContainingType);
             Assert.AreEqual(DescriptorProtos.MessageOptions.DefaultInstance, messageType.Options);
             Assert.AreEqual("TestAllTypes", messageType.Proto.Name);

             Assert.AreEqual("NestedMessage", nestedType.Name);
             Assert.AreEqual("protobuf_unittest.TestAllTypes.NestedMessage", nestedType.FullName);
             Assert.AreEqual(UnitTestProtoFile.Descriptor, nestedType.File);
             Assert.AreEqual(messageType, nestedType.ContainingType);

             FieldDescriptor field = messageType.Fields[0];
             Assert.AreEqual("optional_int32", field.Name);
             Assert.AreEqual(field, messageType.FindDescriptor<FieldDescriptor>("optional_int32"));
             Assert.IsNull(messageType.FindDescriptor<FieldDescriptor>("no_such_field"));
             Assert.AreEqual(field, messageType.FindFieldByNumber(1));
             Assert.IsNull(messageType.FindFieldByNumber(571283));
             for (int i = 0; i < messageType.Fields.Count; i++)
             {
                 Assert.AreEqual(i, messageType.Fields[i].Index);
             }

             Assert.AreEqual(nestedType, messageType.NestedTypes[0]);
             Assert.AreEqual(nestedType, messageType.FindDescriptor<MessageDescriptor>("NestedMessage"));
             Assert.IsNull(messageType.FindDescriptor<MessageDescriptor>("NoSuchType"));
             for (int i = 0; i < messageType.NestedTypes.Count; i++)
             {
                 Assert.AreEqual(i, messageType.NestedTypes[i].Index);
             }

             Assert.AreEqual(messageType.EnumTypes[0], messageType.FindDescriptor<EnumDescriptor>("NestedEnum"));
             Assert.IsNull(messageType.FindDescriptor<EnumDescriptor>("NoSuchType"));
             for (int i = 0; i < messageType.EnumTypes.Count; i++)
             {
                 Assert.AreEqual(i, messageType.EnumTypes[i].Index);
             }
         }

         [TestMethod]
         public void FieldDescriptor()
         {
             MessageDescriptor messageType = TestAllTypes.Descriptor;
             FieldDescriptor primitiveField = messageType.FindDescriptor<FieldDescriptor>("optional_int32");
             FieldDescriptor enumField = messageType.FindDescriptor<FieldDescriptor>("optional_nested_enum");
             FieldDescriptor messageField = messageType.FindDescriptor<FieldDescriptor>("optional_foreign_message");
             FieldDescriptor cordField = messageType.FindDescriptor<FieldDescriptor>("optional_cord");
             FieldDescriptor extension = UnitTestProtoFile.OptionalInt32Extension.Descriptor;
             FieldDescriptor nestedExtension = TestRequired.Single.Descriptor;

             Assert.AreEqual("optional_int32", primitiveField.Name);
             Assert.AreEqual("protobuf_unittest.TestAllTypes.optional_int32",
                             primitiveField.FullName);
             Assert.AreEqual(1, primitiveField.FieldNumber);
             Assert.AreEqual(messageType, primitiveField.ContainingType);
             Assert.AreEqual(UnitTestProtoFile.Descriptor, primitiveField.File);
             Assert.AreEqual(FieldType.Int32, primitiveField.FieldType);
             Assert.AreEqual(MappedType.Int32, primitiveField.MappedType);
             Assert.AreEqual(DescriptorProtos.FieldOptions.DefaultInstance, primitiveField.Options);
             Assert.IsFalse(primitiveField.IsExtension);
             Assert.AreEqual("optional_int32", primitiveField.Proto.Name);

             Assert.AreEqual("optional_nested_enum", enumField.Name);
             Assert.AreEqual(FieldType.Enum, enumField.FieldType);
             Assert.AreEqual(MappedType.Enum, enumField.MappedType);
             // Assert.AreEqual(TestAllTypes.Types.NestedEnum.Descriptor, enumField.EnumType);

             Assert.AreEqual("optional_foreign_message", messageField.Name);
             Assert.AreEqual(FieldType.Message, messageField.FieldType);
             Assert.AreEqual(MappedType.Message, messageField.MappedType);
             Assert.AreEqual(ForeignMessage.Descriptor, messageField.MessageType);

             Assert.AreEqual("optional_cord", cordField.Name);
             Assert.AreEqual(FieldType.String, cordField.FieldType);
             Assert.AreEqual(MappedType.String, cordField.MappedType);
             Assert.AreEqual(DescriptorProtos.FieldOptions.Types.CType.CORD, cordField.Options.Ctype);

             Assert.AreEqual("optional_int32_extension", extension.Name);
             Assert.AreEqual("protobuf_unittest.optional_int32_extension", extension.FullName);
             Assert.AreEqual(1, extension.FieldNumber);
             Assert.AreEqual(TestAllExtensions.Descriptor, extension.ContainingType);
             Assert.AreEqual(UnitTestProtoFile.Descriptor, extension.File);
             Assert.AreEqual(FieldType.Int32, extension.FieldType);
             Assert.AreEqual(MappedType.Int32, extension.MappedType);
             Assert.AreEqual(DescriptorProtos.FieldOptions.DefaultInstance,
                             extension.Options);
             Assert.IsTrue(extension.IsExtension);
             Assert.AreEqual(null, extension.ExtensionScope);
             Assert.AreEqual("optional_int32_extension", extension.Proto.Name);

             Assert.AreEqual("single", nestedExtension.Name);
             Assert.AreEqual("protobuf_unittest.TestRequired.single",
                             nestedExtension.FullName);
             Assert.AreEqual(TestRequired.Descriptor,
                             nestedExtension.ExtensionScope);
         }

         [TestMethod]
         public void FieldDescriptorLabel()
         {
             FieldDescriptor requiredField =
                 TestRequired.Descriptor.FindDescriptor<FieldDescriptor>("a");
             FieldDescriptor optionalField =
                 TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("optional_int32");
             FieldDescriptor repeatedField =
                 TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("repeated_int32");

             Assert.IsTrue(requiredField.IsRequired);
             Assert.IsFalse(requiredField.IsRepeated);
             Assert.IsFalse(optionalField.IsRequired);
             Assert.IsFalse(optionalField.IsRepeated);
             Assert.IsFalse(repeatedField.IsRequired);
             Assert.IsTrue(repeatedField.IsRepeated);
         }
         [TestMethod]
         public void FieldDescriptorDefault()
         {
             MessageDescriptor d = TestAllTypes.Descriptor;
             Assert.IsFalse(d.FindDescriptor<FieldDescriptor>("optional_int32").HasDefaultValue);
             Assert.AreEqual<object>(0, d.FindDescriptor<FieldDescriptor>("optional_int32").DefaultValue);
             Assert.IsTrue(d.FindDescriptor<FieldDescriptor>("default_int32").HasDefaultValue);
             Assert.AreEqual<object>(41, d.FindDescriptor<FieldDescriptor>("default_int32").DefaultValue);

             d = TestExtremeDefaultValues.Descriptor;
             Assert.AreEqual<object>(TestExtremeDefaultValues.DefaultInstance.EscapedBytes,
                 d.FindDescriptor<FieldDescriptor>("escaped_bytes").DefaultValue);

             Assert.AreEqual<object>(uint.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint32").DefaultValue);
             Assert.AreEqual<object>(ulong.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint64").DefaultValue);
         }
         [TestMethod]
         public void EnumDescriptor()
         {
             // Note: this test is a bit different to the Java version because there's no static way of getting to the descriptor
             EnumDescriptor enumType = UnitTestProtoFile.Descriptor.FindTypeByName<EnumDescriptor>("ForeignEnum");
             EnumDescriptor nestedType = TestAllTypes.Descriptor.FindDescriptor<EnumDescriptor>("NestedEnum");

             Assert.AreEqual("ForeignEnum", enumType.Name);
             Assert.AreEqual("protobuf_unittest.ForeignEnum", enumType.FullName);
             Assert.AreEqual(UnitTestProtoFile.Descriptor, enumType.File);
             Assert.IsNull(enumType.ContainingType);
             Assert.AreEqual(DescriptorProtos.EnumOptions.DefaultInstance,
                             enumType.Options);

             Assert.AreEqual("NestedEnum", nestedType.Name);
             Assert.AreEqual("protobuf_unittest.TestAllTypes.NestedEnum",
                             nestedType.FullName);
             Assert.AreEqual(UnitTestProtoFile.Descriptor, nestedType.File);
             Assert.AreEqual(TestAllTypes.Descriptor, nestedType.ContainingType);

             EnumValueDescriptor value = enumType.FindValueByName("FOREIGN_FOO");
             Assert.AreEqual(value, enumType.Values[0]);
             Assert.AreEqual("FOREIGN_FOO", value.Name);
             Assert.AreEqual(4, value.Number);
             Assert.AreEqual((int) ForeignEnum.FOREIGN_FOO, value.Number);
             Assert.AreEqual(value, enumType.FindValueByNumber(4));
             Assert.IsNull(enumType.FindValueByName("NO_SUCH_VALUE"));
             for (int i = 0; i < enumType.Values.Count; i++)
             {
                 Assert.AreEqual(i, enumType.Values[i].Index);
             }
         }

         [TestMethod]
         public void ServiceDescriptor()
         {
             ServiceDescriptor service = TestGenericService.Descriptor;

             Assert.AreEqual("TestGenericService", service.Name);
             Assert.AreEqual("protobuf_unittest.TestGenericService", service.FullName);
             Assert.AreEqual(UnitTestGenericServices.Descriptor, service.File);

             Assert.AreEqual(2, service.Methods.Count);

             MethodDescriptor fooMethod = service.Methods[0];
             Assert.AreEqual("Foo", fooMethod.Name);
             Assert.AreEqual(FooRequest.Descriptor, fooMethod.InputType);
             Assert.AreEqual(FooResponse.Descriptor, fooMethod.OutputType);
             Assert.AreEqual(fooMethod, service.FindMethodByName("Foo"));

             MethodDescriptor barMethod = service.Methods[1];
             Assert.AreEqual("Bar", barMethod.Name);
             Assert.AreEqual(BarRequest.Descriptor, barMethod.InputType);
             Assert.AreEqual(BarResponse.Descriptor, barMethod.OutputType);
             Assert.AreEqual(barMethod, service.FindMethodByName("Bar"));

             Assert.IsNull(service.FindMethodByName("NoSuchMethod"));

             for (int i = 0; i < service.Methods.Count; i++)
             {
                 Assert.AreEqual(i, service.Methods[i].Index);
             }
         }

         [TestMethod]
         public void CustomOptions()
         {
             MessageDescriptor descriptor = TestMessageWithCustomOptions.Descriptor;
             Assert.IsTrue(descriptor.Options.HasExtension(UnitTestCustomOptionsProtoFile.MessageOpt1));
             Assert.AreEqual(-56, descriptor.Options.GetExtension(UnitTestCustomOptionsProtoFile.MessageOpt1));


             FieldDescriptor field = descriptor.FindFieldByName("field1");
             Assert.IsNotNull(field);

             Assert.IsTrue(field.Options.HasExtension(UnitTestCustomOptionsProtoFile.FieldOpt1));
             Assert.AreEqual(8765432109uL, field.Options.GetExtension(UnitTestCustomOptionsProtoFile.FieldOpt1));

             // TODO: Write out enum descriptors
             /*
       EnumDescriptor enumType = TestMessageWithCustomOptions.Types.
         UnittestCustomOptions.TestMessageWithCustomOptions.AnEnum.getDescriptor();

       Assert.IsTrue(
         enumType.getOptions().hasExtension(UnittestCustomOptions.enumOpt1));
       Assert.AreEqual(Integer.valueOf(-789),
         enumType.getOptions().getExtension(UnittestCustomOptions.enumOpt1));
         */

             ServiceDescriptor service = TestGenericServiceWithCustomOptions.Descriptor;

             Assert.IsTrue(service.Options.HasExtension(UnitTestCustomOptionsProtoFile.ServiceOpt1));
             Assert.AreEqual(-9876543210L, service.Options.GetExtension(UnitTestCustomOptionsProtoFile.ServiceOpt1));

             MethodDescriptor method = service.FindMethodByName("Foo");
             Assert.IsNotNull(method);

             Assert.IsTrue(method.Options.HasExtension(UnitTestCustomOptionsProtoFile.MethodOpt1));
             Assert.AreEqual(MethodOpt1.METHODOPT1_VAL2,
                             method.Options.GetExtension(UnitTestCustomOptionsProtoFile.MethodOpt1));
         }
     }
 }
	#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.Text;
	using Google.ProtocolBuffers.Descriptors;
	using Google.ProtocolBuffers.TestProtos;
	using Microsoft.VisualStudio.TestTools.UnitTesting;

	namespace Google.ProtocolBuffers
	{
	/// <summary>
	/// Tests for descriptors. (Not in its own namespace or broken up into individual classes as the
	/// size doesn't warrant it. On the other hand, this makes me feel a bit dirty...)
	/// </summary>
	[TestClass]
	public class DescriptorsTest
	{
	[TestMethod]
	public void FileDescriptor()
	{
	FileDescriptor file = UnitTestProtoFile.Descriptor;

	Assert.AreEqual("google/protobuf/unittest.proto", file.Name);
	Assert.AreEqual("protobuf_unittest", file.Package);

	Assert.AreEqual("UnittestProto", file.Options.JavaOuterClassname);
	Assert.AreEqual("google/protobuf/unittest.proto", file.Proto.Name);

	// TODO(jonskeet): Either change to expect 2 dependencies, or don't emit them.
	// Assert.AreEqual(2, file.Dependencies.Count);
	Assert.AreEqual(UnitTestImportProtoFile.Descriptor, file.Dependencies[1]);

	MessageDescriptor messageType = TestAllTypes.Descriptor;
	Assert.AreEqual(messageType, file.MessageTypes[0]);
	Assert.AreEqual(messageType, file.FindTypeByName<MessageDescriptor>("TestAllTypes"));
	Assert.IsNull(file.FindTypeByName<MessageDescriptor>("NoSuchType"));
	Assert.IsNull(file.FindTypeByName<MessageDescriptor>("protobuf_unittest.TestAllTypes"));
	for (int i = 0; i < file.MessageTypes.Count; i++)
	{
	Assert.AreEqual(i, file.MessageTypes[i].Index);
	}

	Assert.AreEqual(file.EnumTypes[0], file.FindTypeByName<EnumDescriptor>("ForeignEnum"));
	Assert.IsNull(file.FindTypeByName<EnumDescriptor>("NoSuchType"));
	Assert.IsNull(file.FindTypeByName<EnumDescriptor>("protobuf_unittest.ForeignEnum"));
	Assert.AreEqual(1, UnitTestImportProtoFile.Descriptor.EnumTypes.Count);
	Assert.AreEqual("ImportEnum", UnitTestImportProtoFile.Descriptor.EnumTypes[0].Name);
	for (int i = 0; i < file.EnumTypes.Count; i++)
	{
	Assert.AreEqual(i, file.EnumTypes[i].Index);
	}

	ServiceDescriptor service = TestGenericService.Descriptor;
	Assert.AreEqual(service, UnitTestGenericServices.Descriptor.Services[0]);
	Assert.AreEqual(service,
	UnitTestGenericServices.Descriptor.FindTypeByName<ServiceDescriptor>("TestGenericService"));
	Assert.IsNull(UnitTestGenericServices.Descriptor.FindTypeByName<ServiceDescriptor>("NoSuchType"));
	Assert.IsNull(
	UnitTestGenericServices.Descriptor.FindTypeByName<ServiceDescriptor>(
	"protobuf_unittest.TestGenericService"));
	Assert.AreEqual(0, UnitTestImportProtoFile.Descriptor.Services.Count);
	for (int i = 0; i < file.Services.Count; i++)
	{
	Assert.AreEqual(i, file.Services[i].Index);
	}

	FieldDescriptor extension = UnitTestProtoFile.OptionalInt32Extension.Descriptor;
	Assert.AreEqual(extension, file.Extensions[0]);
	Assert.AreEqual(extension, file.FindTypeByName<FieldDescriptor>("optional_int32_extension"));
	Assert.IsNull(file.FindTypeByName<FieldDescriptor>("no_such_ext"));
	Assert.IsNull(file.FindTypeByName<FieldDescriptor>("protobuf_unittest.optional_int32_extension"));
	Assert.AreEqual(0, UnitTestImportProtoFile.Descriptor.Extensions.Count);
	for (int i = 0; i < file.Extensions.Count; i++)
	{
	Assert.AreEqual(i, file.Extensions[i].Index);
	}
	}

	[TestMethod]
	public void MessageDescriptor()
	{
	MessageDescriptor messageType = TestAllTypes.Descriptor;
	MessageDescriptor nestedType = TestAllTypes.Types.NestedMessage.Descriptor;

	Assert.AreEqual("TestAllTypes", messageType.Name);
	Assert.AreEqual("protobuf_unittest.TestAllTypes", messageType.FullName);
	Assert.AreEqual(UnitTestProtoFile.Descriptor, messageType.File);
	Assert.IsNull(messageType.ContainingType);
	Assert.AreEqual(DescriptorProtos.MessageOptions.DefaultInstance, messageType.Options);
	Assert.AreEqual("TestAllTypes", messageType.Proto.Name);

	Assert.AreEqual("NestedMessage", nestedType.Name);
	Assert.AreEqual("protobuf_unittest.TestAllTypes.NestedMessage", nestedType.FullName);
	Assert.AreEqual(UnitTestProtoFile.Descriptor, nestedType.File);
	Assert.AreEqual(messageType, nestedType.ContainingType);

	FieldDescriptor field = messageType.Fields[0];
	Assert.AreEqual("optional_int32", field.Name);
	Assert.AreEqual(field, messageType.FindDescriptor<FieldDescriptor>("optional_int32"));
	Assert.IsNull(messageType.FindDescriptor<FieldDescriptor>("no_such_field"));
	Assert.AreEqual(field, messageType.FindFieldByNumber(1));
	Assert.IsNull(messageType.FindFieldByNumber(571283));
	for (int i = 0; i < messageType.Fields.Count; i++)
	{
	Assert.AreEqual(i, messageType.Fields[i].Index);
	}

	Assert.AreEqual(nestedType, messageType.NestedTypes[0]);
	Assert.AreEqual(nestedType, messageType.FindDescriptor<MessageDescriptor>("NestedMessage"));
	Assert.IsNull(messageType.FindDescriptor<MessageDescriptor>("NoSuchType"));
	for (int i = 0; i < messageType.NestedTypes.Count; i++)
	{
	Assert.AreEqual(i, messageType.NestedTypes[i].Index);
	}

	Assert.AreEqual(messageType.EnumTypes[0], messageType.FindDescriptor<EnumDescriptor>("NestedEnum"));
	Assert.IsNull(messageType.FindDescriptor<EnumDescriptor>("NoSuchType"));
	for (int i = 0; i < messageType.EnumTypes.Count; i++)
	{
	Assert.AreEqual(i, messageType.EnumTypes[i].Index);
	}
	}

	[TestMethod]
	public void FieldDescriptor()
	{
	MessageDescriptor messageType = TestAllTypes.Descriptor;
	FieldDescriptor primitiveField = messageType.FindDescriptor<FieldDescriptor>("optional_int32");
	FieldDescriptor enumField = messageType.FindDescriptor<FieldDescriptor>("optional_nested_enum");
	FieldDescriptor messageField = messageType.FindDescriptor<FieldDescriptor>("optional_foreign_message");
	FieldDescriptor cordField = messageType.FindDescriptor<FieldDescriptor>("optional_cord");
	FieldDescriptor extension = UnitTestProtoFile.OptionalInt32Extension.Descriptor;
	FieldDescriptor nestedExtension = TestRequired.Single.Descriptor;

	Assert.AreEqual("optional_int32", primitiveField.Name);
	Assert.AreEqual("protobuf_unittest.TestAllTypes.optional_int32",
	primitiveField.FullName);
	Assert.AreEqual(1, primitiveField.FieldNumber);
	Assert.AreEqual(messageType, primitiveField.ContainingType);
	Assert.AreEqual(UnitTestProtoFile.Descriptor, primitiveField.File);
	Assert.AreEqual(FieldType.Int32, primitiveField.FieldType);
	Assert.AreEqual(MappedType.Int32, primitiveField.MappedType);
	Assert.AreEqual(DescriptorProtos.FieldOptions.DefaultInstance, primitiveField.Options);
	Assert.IsFalse(primitiveField.IsExtension);
	Assert.AreEqual("optional_int32", primitiveField.Proto.Name);

	Assert.AreEqual("optional_nested_enum", enumField.Name);
	Assert.AreEqual(FieldType.Enum, enumField.FieldType);
	Assert.AreEqual(MappedType.Enum, enumField.MappedType);
	// Assert.AreEqual(TestAllTypes.Types.NestedEnum.Descriptor, enumField.EnumType);

	Assert.AreEqual("optional_foreign_message", messageField.Name);
	Assert.AreEqual(FieldType.Message, messageField.FieldType);
	Assert.AreEqual(MappedType.Message, messageField.MappedType);
	Assert.AreEqual(ForeignMessage.Descriptor, messageField.MessageType);

	Assert.AreEqual("optional_cord", cordField.Name);
	Assert.AreEqual(FieldType.String, cordField.FieldType);
	Assert.AreEqual(MappedType.String, cordField.MappedType);
	Assert.AreEqual(DescriptorProtos.FieldOptions.Types.CType.CORD, cordField.Options.Ctype);

	Assert.AreEqual("optional_int32_extension", extension.Name);
	Assert.AreEqual("protobuf_unittest.optional_int32_extension", extension.FullName);
	Assert.AreEqual(1, extension.FieldNumber);
	Assert.AreEqual(TestAllExtensions.Descriptor, extension.ContainingType);
	Assert.AreEqual(UnitTestProtoFile.Descriptor, extension.File);
	Assert.AreEqual(FieldType.Int32, extension.FieldType);
	Assert.AreEqual(MappedType.Int32, extension.MappedType);
	Assert.AreEqual(DescriptorProtos.FieldOptions.DefaultInstance,
	extension.Options);
	Assert.IsTrue(extension.IsExtension);
	Assert.AreEqual(null, extension.ExtensionScope);
	Assert.AreEqual("optional_int32_extension", extension.Proto.Name);

	Assert.AreEqual("single", nestedExtension.Name);
	Assert.AreEqual("protobuf_unittest.TestRequired.single",
	nestedExtension.FullName);
	Assert.AreEqual(TestRequired.Descriptor,
	nestedExtension.ExtensionScope);
	}

	[TestMethod]
	public void FieldDescriptorLabel()
	{
	FieldDescriptor requiredField =
	TestRequired.Descriptor.FindDescriptor<FieldDescriptor>("a");
	FieldDescriptor optionalField =
	TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("optional_int32");
	FieldDescriptor repeatedField =
	TestAllTypes.Descriptor.FindDescriptor<FieldDescriptor>("repeated_int32");

	Assert.IsTrue(requiredField.IsRequired);
	Assert.IsFalse(requiredField.IsRepeated);
	Assert.IsFalse(optionalField.IsRequired);
	Assert.IsFalse(optionalField.IsRepeated);
	Assert.IsFalse(repeatedField.IsRequired);
	Assert.IsTrue(repeatedField.IsRepeated);
	}
	[TestMethod]
	public void FieldDescriptorDefault()
	{
	MessageDescriptor d = TestAllTypes.Descriptor;
	Assert.IsFalse(d.FindDescriptor<FieldDescriptor>("optional_int32").HasDefaultValue);
	Assert.AreEqual<object>(0, d.FindDescriptor<FieldDescriptor>("optional_int32").DefaultValue);
	Assert.IsTrue(d.FindDescriptor<FieldDescriptor>("default_int32").HasDefaultValue);
	Assert.AreEqual<object>(41, d.FindDescriptor<FieldDescriptor>("default_int32").DefaultValue);

	d = TestExtremeDefaultValues.Descriptor;
	Assert.AreEqual<object>(TestExtremeDefaultValues.DefaultInstance.EscapedBytes,
	d.FindDescriptor<FieldDescriptor>("escaped_bytes").DefaultValue);

	Assert.AreEqual<object>(uint.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint32").DefaultValue);
	Assert.AreEqual<object>(ulong.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint64").DefaultValue);
	}
	[TestMethod]
	public void EnumDescriptor()
	{
	// Note: this test is a bit different to the Java version because there's no static way of getting to the descriptor
	EnumDescriptor enumType = UnitTestProtoFile.Descriptor.FindTypeByName<EnumDescriptor>("ForeignEnum");
	EnumDescriptor nestedType = TestAllTypes.Descriptor.FindDescriptor<EnumDescriptor>("NestedEnum");

	Assert.AreEqual("ForeignEnum", enumType.Name);
	Assert.AreEqual("protobuf_unittest.ForeignEnum", enumType.FullName);
	Assert.AreEqual(UnitTestProtoFile.Descriptor, enumType.File);
	Assert.IsNull(enumType.ContainingType);
	Assert.AreEqual(DescriptorProtos.EnumOptions.DefaultInstance,
	enumType.Options);

	Assert.AreEqual("NestedEnum", nestedType.Name);
	Assert.AreEqual("protobuf_unittest.TestAllTypes.NestedEnum",
	nestedType.FullName);
	Assert.AreEqual(UnitTestProtoFile.Descriptor, nestedType.File);
	Assert.AreEqual(TestAllTypes.Descriptor, nestedType.ContainingType);

	EnumValueDescriptor value = enumType.FindValueByName("FOREIGN_FOO");
	Assert.AreEqual(value, enumType.Values[0]);
	Assert.AreEqual("FOREIGN_FOO", value.Name);
	Assert.AreEqual(4, value.Number);
	Assert.AreEqual((int) ForeignEnum.FOREIGN_FOO, value.Number);
	Assert.AreEqual(value, enumType.FindValueByNumber(4));
	Assert.IsNull(enumType.FindValueByName("NO_SUCH_VALUE"));
	for (int i = 0; i < enumType.Values.Count; i++)
	{
	Assert.AreEqual(i, enumType.Values[i].Index);
	}
	}

	[TestMethod]
	public void ServiceDescriptor()
	{
	ServiceDescriptor service = TestGenericService.Descriptor;

	Assert.AreEqual("TestGenericService", service.Name);
	Assert.AreEqual("protobuf_unittest.TestGenericService", service.FullName);
	Assert.AreEqual(UnitTestGenericServices.Descriptor, service.File);

	Assert.AreEqual(2, service.Methods.Count);

	MethodDescriptor fooMethod = service.Methods[0];
	Assert.AreEqual("Foo", fooMethod.Name);
	Assert.AreEqual(FooRequest.Descriptor, fooMethod.InputType);
	Assert.AreEqual(FooResponse.Descriptor, fooMethod.OutputType);
	Assert.AreEqual(fooMethod, service.FindMethodByName("Foo"));

	MethodDescriptor barMethod = service.Methods[1];
	Assert.AreEqual("Bar", barMethod.Name);
	Assert.AreEqual(BarRequest.Descriptor, barMethod.InputType);
	Assert.AreEqual(BarResponse.Descriptor, barMethod.OutputType);
	Assert.AreEqual(barMethod, service.FindMethodByName("Bar"));

	Assert.IsNull(service.FindMethodByName("NoSuchMethod"));

	for (int i = 0; i < service.Methods.Count; i++)
	{
	Assert.AreEqual(i, service.Methods[i].Index);
	}
	}

	[TestMethod]
	public void CustomOptions()
	{
	MessageDescriptor descriptor = TestMessageWithCustomOptions.Descriptor;
	Assert.IsTrue(descriptor.Options.HasExtension(UnitTestCustomOptionsProtoFile.MessageOpt1));
	Assert.AreEqual(-56, descriptor.Options.GetExtension(UnitTestCustomOptionsProtoFile.MessageOpt1));


	FieldDescriptor field = descriptor.FindFieldByName("field1");
	Assert.IsNotNull(field);

	Assert.IsTrue(field.Options.HasExtension(UnitTestCustomOptionsProtoFile.FieldOpt1));
	Assert.AreEqual(8765432109uL, field.Options.GetExtension(UnitTestCustomOptionsProtoFile.FieldOpt1));

	// TODO: Write out enum descriptors
	/*
	EnumDescriptor enumType = TestMessageWithCustomOptions.Types.
	UnittestCustomOptions.TestMessageWithCustomOptions.AnEnum.getDescriptor();

	Assert.IsTrue(
	enumType.getOptions().hasExtension(UnittestCustomOptions.enumOpt1));
	Assert.AreEqual(Integer.valueOf(-789),
	enumType.getOptions().getExtension(UnittestCustomOptions.enumOpt1));
	*/

	ServiceDescriptor service = TestGenericServiceWithCustomOptions.Descriptor;

	Assert.IsTrue(service.Options.HasExtension(UnitTestCustomOptionsProtoFile.ServiceOpt1));
	Assert.AreEqual(-9876543210L, service.Options.GetExtension(UnitTestCustomOptionsProtoFile.ServiceOpt1));

	MethodDescriptor method = service.FindMethodByName("Foo");
	Assert.IsNotNull(method);

	Assert.IsTrue(method.Options.HasExtension(UnitTestCustomOptionsProtoFile.MethodOpt1));
	Assert.AreEqual(MethodOpt1.METHODOPT1_VAL2,
	method.Options.GetExtension(UnitTestCustomOptionsProtoFile.MethodOpt1));
	}
	}
	}