src/ProtocolBuffers.Test/DescriptorsTest.cs - platform/external/protobuf-javalite - Gitiles

 // Protocol Buffers - Google's data interchange format
 // Copyright 2008 Google Inc.
 // http://code.google.com/p/protobuf/
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 using System;
 using System.Collections.Generic;
 using System.Text;
 using NUnit.Framework;
 using Google.ProtocolBuffers.Descriptors;
 using Google.ProtocolBuffers.TestProtos;

 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>
   [TestFixture]
   public class DescriptorsTest {

     [Test]
     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 3 dependencies, or don't emit them.
 //      Assert.AreEqual(1, file.Dependencies.Count);
       Assert.AreEqual(UnitTestImportProtoFile.Descriptor, file.Dependencies[2]);

       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 = TestService.Descriptor;
       Assert.AreEqual(service, file.Services[0]);
       Assert.AreEqual(service, file.FindTypeByName<ServiceDescriptor>("TestService"));
       Assert.IsNull(file.FindTypeByName<ServiceDescriptor>("NoSuchType"));
       Assert.IsNull(file.FindTypeByName<ServiceDescriptor>("protobuf_unittest.TestService"));
       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);
       }
     }

     [Test]
     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);
       }
     }

     [Test]
     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);
     }

     [Test]
     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);
     }

     [Test]
     public void FieldDescriptorDefault() {
       MessageDescriptor d = TestAllTypes.Descriptor;
       Assert.IsFalse(d.FindDescriptor<FieldDescriptor>("optional_int32").HasDefaultValue);
       Assert.AreEqual(0, d.FindDescriptor<FieldDescriptor>("optional_int32").DefaultValue);
       Assert.IsTrue(d.FindDescriptor<FieldDescriptor>("default_int32").HasDefaultValue);
       Assert.AreEqual(41, d.FindDescriptor<FieldDescriptor>("default_int32").DefaultValue);

       d = TestExtremeDefaultValues.Descriptor;
       Assert.AreEqual(ByteString.CopyFrom("\u0000\u0001\u0007\b\f\n\r\t\u000b\\\'\"\u00fe", Encoding.GetEncoding(28591)),
         d.FindDescriptor<FieldDescriptor>("escaped_bytes").DefaultValue);
       Assert.AreEqual(uint.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint32").DefaultValue);
       Assert.AreEqual(ulong.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint64").DefaultValue);
     }

     [Test]
     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);
       }
     }

     [Test]
     public void ServiceDescriptor() {
       ServiceDescriptor service = TestService.Descriptor;

       Assert.AreEqual("TestService", service.Name);
       Assert.AreEqual("protobuf_unittest.TestService", service.FullName);
       Assert.AreEqual(UnitTestProtoFile.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);
       }
     }
   }
 }
	// Protocol Buffers - Google's data interchange format
	// Copyright 2008 Google Inc.
	// http://code.google.com/p/protobuf/
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.
	using System;
	using System.Collections.Generic;
	using System.Text;
	using NUnit.Framework;
	using Google.ProtocolBuffers.Descriptors;
	using Google.ProtocolBuffers.TestProtos;

	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>
	[TestFixture]
	public class DescriptorsTest {

	[Test]
	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 3 dependencies, or don't emit them.
	// Assert.AreEqual(1, file.Dependencies.Count);
	Assert.AreEqual(UnitTestImportProtoFile.Descriptor, file.Dependencies[2]);

	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 = TestService.Descriptor;
	Assert.AreEqual(service, file.Services[0]);
	Assert.AreEqual(service, file.FindTypeByName<ServiceDescriptor>("TestService"));
	Assert.IsNull(file.FindTypeByName<ServiceDescriptor>("NoSuchType"));
	Assert.IsNull(file.FindTypeByName<ServiceDescriptor>("protobuf_unittest.TestService"));
	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);
	}
	}

	[Test]
	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);
	}
	}

	[Test]
	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);
	}

	[Test]
	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);
	}

	[Test]
	public void FieldDescriptorDefault() {
	MessageDescriptor d = TestAllTypes.Descriptor;
	Assert.IsFalse(d.FindDescriptor<FieldDescriptor>("optional_int32").HasDefaultValue);
	Assert.AreEqual(0, d.FindDescriptor<FieldDescriptor>("optional_int32").DefaultValue);
	Assert.IsTrue(d.FindDescriptor<FieldDescriptor>("default_int32").HasDefaultValue);
	Assert.AreEqual(41, d.FindDescriptor<FieldDescriptor>("default_int32").DefaultValue);

	d = TestExtremeDefaultValues.Descriptor;
	Assert.AreEqual(ByteString.CopyFrom("\u0000\u0001\u0007\b\f\n\r\t\u000b\\\'\"\u00fe", Encoding.GetEncoding(28591)),
	d.FindDescriptor<FieldDescriptor>("escaped_bytes").DefaultValue);
	Assert.AreEqual(uint.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint32").DefaultValue);
	Assert.AreEqual(ulong.MaxValue, d.FindDescriptor<FieldDescriptor>("large_uint64").DefaultValue);
	}

	[Test]
	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);
	}
	}

	[Test]
	public void ServiceDescriptor() {
	ServiceDescriptor service = TestService.Descriptor;

	Assert.AreEqual("TestService", service.Name);
	Assert.AreEqual("protobuf_unittest.TestService", service.FullName);
	Assert.AreEqual(UnitTestProtoFile.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);
	}
	}
	}
	}