csharp/src/Google.Protobuf.Test/Reflection/FieldAccessTest.cs - third_party/protobuf - Git at Google

 #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 Proto2 = Google.Protobuf.TestProtos.Proto2;
 using NUnit.Framework;
 using System;
 using System.Collections;
 using System.Collections.Generic;

 using static Google.Protobuf.TestProtos.Proto2.UnittestExtensions;
 using ProtobufUnittest;

 namespace Google.Protobuf.Reflection
 {
     public class FieldAccessTest
     {
         [Test]
         public void GetValue()
         {
             var message = SampleMessages.CreateFullTestAllTypes();
             var fields = TestProtos.TestAllTypes.Descriptor.Fields;
             Assert.AreEqual(message.SingleBool, fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleBytes, fields[TestProtos.TestAllTypes.SingleBytesFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleDouble, fields[TestProtos.TestAllTypes.SingleDoubleFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleFixed32, fields[TestProtos.TestAllTypes.SingleFixed32FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleFixed64, fields[TestProtos.TestAllTypes.SingleFixed64FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleFloat, fields[TestProtos.TestAllTypes.SingleFloatFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleForeignEnum, fields[TestProtos.TestAllTypes.SingleForeignEnumFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleForeignMessage, fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleImportEnum, fields[TestProtos.TestAllTypes.SingleImportEnumFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleImportMessage, fields[TestProtos.TestAllTypes.SingleImportMessageFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleInt32, fields[TestProtos.TestAllTypes.SingleInt32FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleInt64, fields[TestProtos.TestAllTypes.SingleInt64FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleNestedEnum, fields[TestProtos.TestAllTypes.SingleNestedEnumFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleNestedMessage, fields[TestProtos.TestAllTypes.SingleNestedMessageFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SinglePublicImportMessage, fields[TestProtos.TestAllTypes.SinglePublicImportMessageFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleSint32, fields[TestProtos.TestAllTypes.SingleSint32FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleSint64, fields[TestProtos.TestAllTypes.SingleSint64FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleString, fields[TestProtos.TestAllTypes.SingleStringFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleSfixed32, fields[TestProtos.TestAllTypes.SingleSfixed32FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleSfixed64, fields[TestProtos.TestAllTypes.SingleSfixed64FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleUint32, fields[TestProtos.TestAllTypes.SingleUint32FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.SingleUint64, fields[TestProtos.TestAllTypes.SingleUint64FieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.OneofBytes, fields[TestProtos.TestAllTypes.OneofBytesFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.OneofString, fields[TestProtos.TestAllTypes.OneofStringFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.OneofNestedMessage, fields[TestProtos.TestAllTypes.OneofNestedMessageFieldNumber].Accessor.GetValue(message));
             Assert.AreEqual(message.OneofUint32, fields[TestProtos.TestAllTypes.OneofUint32FieldNumber].Accessor.GetValue(message));

             // Just one example for repeated fields - they're all just returning the list
             var list = (IList) fields[TestProtos.TestAllTypes.RepeatedInt32FieldNumber].Accessor.GetValue(message);
             Assert.AreEqual(message.RepeatedInt32, list);
             Assert.AreEqual(message.RepeatedInt32[0], list[0]); // Just in case there was any doubt...

             // Just a single map field, for the same reason
             var mapMessage = new TestMap { MapStringString = { { "key1", "value1" }, { "key2", "value2" } } };
             fields = TestMap.Descriptor.Fields;
             var dictionary = (IDictionary) fields[TestMap.MapStringStringFieldNumber].Accessor.GetValue(mapMessage);
             Assert.AreEqual(mapMessage.MapStringString, dictionary);
             Assert.AreEqual("value1", dictionary["key1"]);
         }

         [Test]
         public void GetValue_IncorrectType()
         {
             IMessage message = SampleMessages.CreateFullTestAllTypes();
             var fields = message.Descriptor.Fields;
             Assert.Throws<InvalidCastException>(() => fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.GetValue(new TestMap()));
         }

         [Test]
         public void HasValue_Proto3_Message()
         {
             var message = new TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor;
             Assert.False(accessor.HasValue(message));
             message.SingleForeignMessage = new ForeignMessage();
             Assert.True(accessor.HasValue(message));
             message.SingleForeignMessage = null;
             Assert.False(accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto3_Oneof()
         {
             TestAllTypes message = new TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.OneofStringFieldNumber].Accessor;
             Assert.False(accessor.HasValue(message));
             // Even though it's the default value, we still have a value.
             message.OneofString = "";
             Assert.True(accessor.HasValue(message));
             message.OneofString = "hello";
             Assert.True(accessor.HasValue(message));
             message.OneofUint32 = 10;
             Assert.False(accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto3_Primitive_Optional()
         {
             var message = new TestProto3Optional();
             var accessor = ((IMessage) message).Descriptor.Fields[TestProto3Optional.OptionalInt64FieldNumber].Accessor;
             Assert.IsFalse(accessor.HasValue(message));
             message.OptionalInt64 = 5L;
             Assert.IsTrue(accessor.HasValue(message));
             message.ClearOptionalInt64();
             Assert.IsFalse(accessor.HasValue(message));
             message.OptionalInt64 = 0L;
             Assert.IsTrue(accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto3_Primitive_NotOptional()
         {
             IMessage message = SampleMessages.CreateFullTestAllTypes();
             var fields = message.Descriptor.Fields;
             Assert.Throws<InvalidOperationException>(() => fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto3_Repeated()
         {
             var message = new TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.RepeatedBoolFieldNumber].Accessor;
             Assert.Throws<InvalidOperationException>(() => accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto2_Primitive()
         {
             var message = new Proto2.TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OptionalInt64FieldNumber].Accessor;

             Assert.IsFalse(accessor.HasValue(message));
             message.OptionalInt64 = 5L;
             Assert.IsTrue(accessor.HasValue(message));
             message.ClearOptionalInt64();
             Assert.IsFalse(accessor.HasValue(message));
             message.OptionalInt64 = 0L;
             Assert.IsTrue(accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto2_Message()
         {
             var message = new Proto2.TestAllTypes();
             var field = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OptionalForeignMessageFieldNumber];
             Assert.False(field.Accessor.HasValue(message));
             message.OptionalForeignMessage = new Proto2.ForeignMessage();
             Assert.True(field.Accessor.HasValue(message));
             message.OptionalForeignMessage = null;
             Assert.False(field.Accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto2_Oneof()
         {
             var message = new Proto2.TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OneofStringFieldNumber].Accessor;
             Assert.False(accessor.HasValue(message));
             // Even though it's the default value, we still have a value.
             message.OneofString = "";
             Assert.True(accessor.HasValue(message));
             message.OneofString = "hello";
             Assert.True(accessor.HasValue(message));
             message.OneofUint32 = 10;
             Assert.False(accessor.HasValue(message));
         }

         [Test]
         public void HasValue_Proto2_Repeated()
         {
             var message = new Proto2.TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.RepeatedBoolFieldNumber].Accessor;
             Assert.Throws<InvalidOperationException>(() => accessor.HasValue(message));
         }

         [Test]
         public void SetValue_SingleFields()
         {
             // Just a sample (primitives, messages, enums, strings, byte strings)
             var message = SampleMessages.CreateFullTestAllTypes();
             var fields = TestProtos.TestAllTypes.Descriptor.Fields;
             fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.SetValue(message, false);
             fields[TestProtos.TestAllTypes.SingleInt32FieldNumber].Accessor.SetValue(message, 500);
             fields[TestProtos.TestAllTypes.SingleStringFieldNumber].Accessor.SetValue(message, "It's a string");
             fields[TestProtos.TestAllTypes.SingleBytesFieldNumber].Accessor.SetValue(message, ByteString.CopyFrom(99, 98, 97));
             fields[TestProtos.TestAllTypes.SingleForeignEnumFieldNumber].Accessor.SetValue(message, ForeignEnum.ForeignFoo);
             fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor.SetValue(message, new ForeignMessage { C = 12345 });
             fields[TestProtos.TestAllTypes.SingleDoubleFieldNumber].Accessor.SetValue(message, 20150701.5);

             var expected = new TestAllTypes(SampleMessages.CreateFullTestAllTypes())
             {
                 SingleBool = false,
                 SingleInt32 = 500,
                 SingleString = "It's a string",
                 SingleBytes = ByteString.CopyFrom(99, 98, 97),
                 SingleForeignEnum = ForeignEnum.ForeignFoo,
                 SingleForeignMessage = new ForeignMessage { C = 12345 },
                 SingleDouble = 20150701.5
             };

             Assert.AreEqual(expected, message);
         }

         [Test]
         public void SetValue_SingleFields_WrongType()
         {
             IMessage message = SampleMessages.CreateFullTestAllTypes();
             var fields = message.Descriptor.Fields;
             Assert.Throws<InvalidCastException>(() => fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.SetValue(message, "This isn't a bool"));
         }

         [Test]
         public void SetValue_MapFields()
         {
             IMessage message = new TestMap();
             var fields = message.Descriptor.Fields;
             Assert.Throws<InvalidOperationException>(() => fields[TestMap.MapStringStringFieldNumber].Accessor.SetValue(message, new Dictionary<string, string>()));
         }

         [Test]
         public void SetValue_RepeatedFields()
         {
             IMessage message = SampleMessages.CreateFullTestAllTypes();
             var fields = message.Descriptor.Fields;
             Assert.Throws<InvalidOperationException>(() => fields[TestProtos.TestAllTypes.RepeatedDoubleFieldNumber].Accessor.SetValue(message, new double[10]));
         }

         [Test]
         public void Oneof()
         {
             var message = new TestAllTypes();
             var descriptor = TestProtos.TestAllTypes.Descriptor;
             Assert.AreEqual(1, descriptor.Oneofs.Count);
             var oneof = descriptor.Oneofs[0];
             Assert.AreEqual("oneof_field", oneof.Name);
             Assert.IsNull(oneof.Accessor.GetCaseFieldDescriptor(message));

             message.OneofString = "foo";
             Assert.AreSame(descriptor.Fields[TestProtos.TestAllTypes.OneofStringFieldNumber], oneof.Accessor.GetCaseFieldDescriptor(message));

             message.OneofUint32 = 10;
             Assert.AreSame(descriptor.Fields[TestProtos.TestAllTypes.OneofUint32FieldNumber], oneof.Accessor.GetCaseFieldDescriptor(message));

             oneof.Accessor.Clear(message);
             Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.None, message.OneofFieldCase);
         }

         [Test]
         public void Clear()
         {
             var message = SampleMessages.CreateFullTestAllTypes();
             var fields = TestProtos.TestAllTypes.Descriptor.Fields;
             fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.Clear(message);
             fields[TestProtos.TestAllTypes.SingleInt32FieldNumber].Accessor.Clear(message);
             fields[TestProtos.TestAllTypes.SingleStringFieldNumber].Accessor.Clear(message);
             fields[TestProtos.TestAllTypes.SingleBytesFieldNumber].Accessor.Clear(message);
             fields[TestProtos.TestAllTypes.SingleForeignEnumFieldNumber].Accessor.Clear(message);
             fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor.Clear(message);
             fields[TestProtos.TestAllTypes.RepeatedDoubleFieldNumber].Accessor.Clear(message);

             var expected = new TestAllTypes(SampleMessages.CreateFullTestAllTypes())
             {
                 SingleBool = false,
                 SingleInt32 = 0,
                 SingleString = "",
                 SingleBytes = ByteString.Empty,
                 SingleForeignEnum = 0,
                 SingleForeignMessage = null,
             };
             expected.RepeatedDouble.Clear();

             Assert.AreEqual(expected, message);

             // Separately, maps.
             var mapMessage = new TestMap { MapStringString = { { "key1", "value1" }, { "key2", "value2" } } };
             fields = TestMap.Descriptor.Fields;
             fields[TestMap.MapStringStringFieldNumber].Accessor.Clear(mapMessage);
             Assert.AreEqual(0, mapMessage.MapStringString.Count);
         }

         [Test]
         public void Clear_Proto3Optional()
         {
             TestProto3Optional message = new TestProto3Optional
             {
                 OptionalInt32 = 0,
                 OptionalNestedMessage = new TestProto3Optional.Types.NestedMessage()
             };
             var primitiveField = TestProto3Optional.Descriptor.Fields[TestProto3Optional.OptionalInt32FieldNumber];
             var messageField = TestProto3Optional.Descriptor.Fields[TestProto3Optional.OptionalNestedMessageFieldNumber];

             Assert.True(message.HasOptionalInt32);
             Assert.NotNull(message.OptionalNestedMessage);

             primitiveField.Accessor.Clear(message);
             messageField.Accessor.Clear(message);

             Assert.False(message.HasOptionalInt32);
             Assert.Null(message.OptionalNestedMessage);
         }

         [Test]
         public void Clear_Proto3_Oneof()
         {
             var message = new TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.OneofUint32FieldNumber].Accessor;

             // The field accessor Clear method only affects a oneof if the current case is the one being cleared.
             message.OneofString = "hello";
             Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);
             accessor.Clear(message);
             Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);

             message.OneofUint32 = 100;
             Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.OneofUint32, message.OneofFieldCase);
             accessor.Clear(message);
             Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.None, message.OneofFieldCase);
         }

         [Test]
         public void Clear_Proto2_Oneof()
         {
             var message = new Proto2.TestAllTypes();
             var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OneofUint32FieldNumber].Accessor;

             // The field accessor Clear method only affects a oneof if the current case is the one being cleared.
             message.OneofString = "hello";
             Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);
             accessor.Clear(message);
             Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);

             message.OneofUint32 = 100;
             Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.OneofUint32, message.OneofFieldCase);
             accessor.Clear(message);
             Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.None, message.OneofFieldCase);
         }

         [Test]
         public void FieldDescriptor_ByName()
         {
             var descriptor = TestProtos.TestAllTypes.Descriptor;
             Assert.AreSame(
                 descriptor.Fields[TestProtos.TestAllTypes.SingleBoolFieldNumber],
                 descriptor.Fields["single_bool"]);
         }

         [Test]
         public void FieldDescriptor_NotFound()
         {
             var descriptor = TestProtos.TestAllTypes.Descriptor;
             Assert.Throws<KeyNotFoundException>(() => descriptor.Fields[999999].ToString());
             Assert.Throws<KeyNotFoundException>(() => descriptor.Fields["not found"].ToString());
         }

         [Test]
         public void GetExtensionValue()
         {
             var message = SampleMessages.CreateFullTestAllExtensions();

             // test that the reflector works, since the reflector just runs through IExtendableMessage
             Assert.AreEqual(message.GetExtension(OptionalBoolExtension), Proto2.TestAllExtensions.Descriptor.FindFieldByNumber(OptionalBoolExtension.FieldNumber).Accessor.GetValue(message));
         }

         [Test]
         public void GetRepeatedExtensionValue()
         {
             // check to make sure repeated accessor uses GetOrRegister
             var message = new Proto2.TestAllExtensions();

             Assert.IsNull(message.GetExtension(RepeatedBoolExtension));
             Assert.IsNotNull(Proto2.TestAllExtensions.Descriptor.FindFieldByNumber(RepeatedBoolExtension.FieldNumber).Accessor.GetValue(message));
             Assert.IsNotNull(message.GetExtension(RepeatedBoolExtension));

             message.ClearExtension(RepeatedBoolExtension);
             Assert.IsNull(message.GetExtension(RepeatedBoolExtension));
         }

         [Test]
         public void HasPresence()
         {
             // Proto3
             var fields = TestProtos.TestAllTypes.Descriptor.Fields;
             Assert.IsFalse(fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].HasPresence);
             Assert.IsTrue(fields[TestProtos.TestAllTypes.OneofBytesFieldNumber].HasPresence);
             Assert.IsTrue(fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].HasPresence);
             Assert.IsFalse(fields[TestProtos.TestAllTypes.RepeatedBoolFieldNumber].HasPresence);

             fields = TestMap.Descriptor.Fields;
             Assert.IsFalse(fields[TestMap.MapBoolBoolFieldNumber].HasPresence);

             fields = TestProto3Optional.Descriptor.Fields;
             Assert.IsTrue(fields[TestProto3Optional.OptionalBoolFieldNumber].HasPresence);

             // Proto2
             fields = Proto2.TestAllTypes.Descriptor.Fields;
             Assert.IsTrue(fields[Proto2.TestAllTypes.OptionalBoolFieldNumber].HasPresence);
             Assert.IsTrue(fields[Proto2.TestAllTypes.OneofBytesFieldNumber].HasPresence);
             Assert.IsTrue(fields[Proto2.TestAllTypes.OptionalForeignMessageFieldNumber].HasPresence);
             Assert.IsFalse(fields[Proto2.TestAllTypes.RepeatedBoolFieldNumber].HasPresence);

             fields = Proto2.TestRequired.Descriptor.Fields;
             Assert.IsTrue(fields[Proto2.TestRequired.AFieldNumber].HasPresence);
         }
     }
 }
	#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 Proto2 = Google.Protobuf.TestProtos.Proto2;
	using NUnit.Framework;
	using System;
	using System.Collections;
	using System.Collections.Generic;

	using static Google.Protobuf.TestProtos.Proto2.UnittestExtensions;
	using ProtobufUnittest;

	namespace Google.Protobuf.Reflection
	{
	public class FieldAccessTest
	{
	[Test]
	public void GetValue()
	{
	var message = SampleMessages.CreateFullTestAllTypes();
	var fields = TestProtos.TestAllTypes.Descriptor.Fields;
	Assert.AreEqual(message.SingleBool, fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleBytes, fields[TestProtos.TestAllTypes.SingleBytesFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleDouble, fields[TestProtos.TestAllTypes.SingleDoubleFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleFixed32, fields[TestProtos.TestAllTypes.SingleFixed32FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleFixed64, fields[TestProtos.TestAllTypes.SingleFixed64FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleFloat, fields[TestProtos.TestAllTypes.SingleFloatFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleForeignEnum, fields[TestProtos.TestAllTypes.SingleForeignEnumFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleForeignMessage, fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleImportEnum, fields[TestProtos.TestAllTypes.SingleImportEnumFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleImportMessage, fields[TestProtos.TestAllTypes.SingleImportMessageFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleInt32, fields[TestProtos.TestAllTypes.SingleInt32FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleInt64, fields[TestProtos.TestAllTypes.SingleInt64FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleNestedEnum, fields[TestProtos.TestAllTypes.SingleNestedEnumFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleNestedMessage, fields[TestProtos.TestAllTypes.SingleNestedMessageFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SinglePublicImportMessage, fields[TestProtos.TestAllTypes.SinglePublicImportMessageFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleSint32, fields[TestProtos.TestAllTypes.SingleSint32FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleSint64, fields[TestProtos.TestAllTypes.SingleSint64FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleString, fields[TestProtos.TestAllTypes.SingleStringFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleSfixed32, fields[TestProtos.TestAllTypes.SingleSfixed32FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleSfixed64, fields[TestProtos.TestAllTypes.SingleSfixed64FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleUint32, fields[TestProtos.TestAllTypes.SingleUint32FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.SingleUint64, fields[TestProtos.TestAllTypes.SingleUint64FieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.OneofBytes, fields[TestProtos.TestAllTypes.OneofBytesFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.OneofString, fields[TestProtos.TestAllTypes.OneofStringFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.OneofNestedMessage, fields[TestProtos.TestAllTypes.OneofNestedMessageFieldNumber].Accessor.GetValue(message));
	Assert.AreEqual(message.OneofUint32, fields[TestProtos.TestAllTypes.OneofUint32FieldNumber].Accessor.GetValue(message));

	// Just one example for repeated fields - they're all just returning the list
	var list = (IList) fields[TestProtos.TestAllTypes.RepeatedInt32FieldNumber].Accessor.GetValue(message);
	Assert.AreEqual(message.RepeatedInt32, list);
	Assert.AreEqual(message.RepeatedInt32[0], list[0]); // Just in case there was any doubt...

	// Just a single map field, for the same reason
	var mapMessage = new TestMap { MapStringString = { { "key1", "value1" }, { "key2", "value2" } } };
	fields = TestMap.Descriptor.Fields;
	var dictionary = (IDictionary) fields[TestMap.MapStringStringFieldNumber].Accessor.GetValue(mapMessage);
	Assert.AreEqual(mapMessage.MapStringString, dictionary);
	Assert.AreEqual("value1", dictionary["key1"]);
	}

	[Test]
	public void GetValue_IncorrectType()
	{
	IMessage message = SampleMessages.CreateFullTestAllTypes();
	var fields = message.Descriptor.Fields;
	Assert.Throws<InvalidCastException>(() => fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.GetValue(new TestMap()));
	}

	[Test]
	public void HasValue_Proto3_Message()
	{
	var message = new TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor;
	Assert.False(accessor.HasValue(message));
	message.SingleForeignMessage = new ForeignMessage();
	Assert.True(accessor.HasValue(message));
	message.SingleForeignMessage = null;
	Assert.False(accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto3_Oneof()
	{
	TestAllTypes message = new TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.OneofStringFieldNumber].Accessor;
	Assert.False(accessor.HasValue(message));
	// Even though it's the default value, we still have a value.
	message.OneofString = "";
	Assert.True(accessor.HasValue(message));
	message.OneofString = "hello";
	Assert.True(accessor.HasValue(message));
	message.OneofUint32 = 10;
	Assert.False(accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto3_Primitive_Optional()
	{
	var message = new TestProto3Optional();
	var accessor = ((IMessage) message).Descriptor.Fields[TestProto3Optional.OptionalInt64FieldNumber].Accessor;
	Assert.IsFalse(accessor.HasValue(message));
	message.OptionalInt64 = 5L;
	Assert.IsTrue(accessor.HasValue(message));
	message.ClearOptionalInt64();
	Assert.IsFalse(accessor.HasValue(message));
	message.OptionalInt64 = 0L;
	Assert.IsTrue(accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto3_Primitive_NotOptional()
	{
	IMessage message = SampleMessages.CreateFullTestAllTypes();
	var fields = message.Descriptor.Fields;
	Assert.Throws<InvalidOperationException>(() => fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto3_Repeated()
	{
	var message = new TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.RepeatedBoolFieldNumber].Accessor;
	Assert.Throws<InvalidOperationException>(() => accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto2_Primitive()
	{
	var message = new Proto2.TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OptionalInt64FieldNumber].Accessor;

	Assert.IsFalse(accessor.HasValue(message));
	message.OptionalInt64 = 5L;
	Assert.IsTrue(accessor.HasValue(message));
	message.ClearOptionalInt64();
	Assert.IsFalse(accessor.HasValue(message));
	message.OptionalInt64 = 0L;
	Assert.IsTrue(accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto2_Message()
	{
	var message = new Proto2.TestAllTypes();
	var field = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OptionalForeignMessageFieldNumber];
	Assert.False(field.Accessor.HasValue(message));
	message.OptionalForeignMessage = new Proto2.ForeignMessage();
	Assert.True(field.Accessor.HasValue(message));
	message.OptionalForeignMessage = null;
	Assert.False(field.Accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto2_Oneof()
	{
	var message = new Proto2.TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OneofStringFieldNumber].Accessor;
	Assert.False(accessor.HasValue(message));
	// Even though it's the default value, we still have a value.
	message.OneofString = "";
	Assert.True(accessor.HasValue(message));
	message.OneofString = "hello";
	Assert.True(accessor.HasValue(message));
	message.OneofUint32 = 10;
	Assert.False(accessor.HasValue(message));
	}

	[Test]
	public void HasValue_Proto2_Repeated()
	{
	var message = new Proto2.TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.RepeatedBoolFieldNumber].Accessor;
	Assert.Throws<InvalidOperationException>(() => accessor.HasValue(message));
	}

	[Test]
	public void SetValue_SingleFields()
	{
	// Just a sample (primitives, messages, enums, strings, byte strings)
	var message = SampleMessages.CreateFullTestAllTypes();
	var fields = TestProtos.TestAllTypes.Descriptor.Fields;
	fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.SetValue(message, false);
	fields[TestProtos.TestAllTypes.SingleInt32FieldNumber].Accessor.SetValue(message, 500);
	fields[TestProtos.TestAllTypes.SingleStringFieldNumber].Accessor.SetValue(message, "It's a string");
	fields[TestProtos.TestAllTypes.SingleBytesFieldNumber].Accessor.SetValue(message, ByteString.CopyFrom(99, 98, 97));
	fields[TestProtos.TestAllTypes.SingleForeignEnumFieldNumber].Accessor.SetValue(message, ForeignEnum.ForeignFoo);
	fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor.SetValue(message, new ForeignMessage { C = 12345 });
	fields[TestProtos.TestAllTypes.SingleDoubleFieldNumber].Accessor.SetValue(message, 20150701.5);

	var expected = new TestAllTypes(SampleMessages.CreateFullTestAllTypes())
	{
	SingleBool = false,
	SingleInt32 = 500,
	SingleString = "It's a string",
	SingleBytes = ByteString.CopyFrom(99, 98, 97),
	SingleForeignEnum = ForeignEnum.ForeignFoo,
	SingleForeignMessage = new ForeignMessage { C = 12345 },
	SingleDouble = 20150701.5
	};

	Assert.AreEqual(expected, message);
	}

	[Test]
	public void SetValue_SingleFields_WrongType()
	{
	IMessage message = SampleMessages.CreateFullTestAllTypes();
	var fields = message.Descriptor.Fields;
	Assert.Throws<InvalidCastException>(() => fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.SetValue(message, "This isn't a bool"));
	}

	[Test]
	public void SetValue_MapFields()
	{
	IMessage message = new TestMap();
	var fields = message.Descriptor.Fields;
	Assert.Throws<InvalidOperationException>(() => fields[TestMap.MapStringStringFieldNumber].Accessor.SetValue(message, new Dictionary<string, string>()));
	}

	[Test]
	public void SetValue_RepeatedFields()
	{
	IMessage message = SampleMessages.CreateFullTestAllTypes();
	var fields = message.Descriptor.Fields;
	Assert.Throws<InvalidOperationException>(() => fields[TestProtos.TestAllTypes.RepeatedDoubleFieldNumber].Accessor.SetValue(message, new double[10]));
	}

	[Test]
	public void Oneof()
	{
	var message = new TestAllTypes();
	var descriptor = TestProtos.TestAllTypes.Descriptor;
	Assert.AreEqual(1, descriptor.Oneofs.Count);
	var oneof = descriptor.Oneofs[0];
	Assert.AreEqual("oneof_field", oneof.Name);
	Assert.IsNull(oneof.Accessor.GetCaseFieldDescriptor(message));

	message.OneofString = "foo";
	Assert.AreSame(descriptor.Fields[TestProtos.TestAllTypes.OneofStringFieldNumber], oneof.Accessor.GetCaseFieldDescriptor(message));

	message.OneofUint32 = 10;
	Assert.AreSame(descriptor.Fields[TestProtos.TestAllTypes.OneofUint32FieldNumber], oneof.Accessor.GetCaseFieldDescriptor(message));

	oneof.Accessor.Clear(message);
	Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.None, message.OneofFieldCase);
	}

	[Test]
	public void Clear()
	{
	var message = SampleMessages.CreateFullTestAllTypes();
	var fields = TestProtos.TestAllTypes.Descriptor.Fields;
	fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].Accessor.Clear(message);
	fields[TestProtos.TestAllTypes.SingleInt32FieldNumber].Accessor.Clear(message);
	fields[TestProtos.TestAllTypes.SingleStringFieldNumber].Accessor.Clear(message);
	fields[TestProtos.TestAllTypes.SingleBytesFieldNumber].Accessor.Clear(message);
	fields[TestProtos.TestAllTypes.SingleForeignEnumFieldNumber].Accessor.Clear(message);
	fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].Accessor.Clear(message);
	fields[TestProtos.TestAllTypes.RepeatedDoubleFieldNumber].Accessor.Clear(message);

	var expected = new TestAllTypes(SampleMessages.CreateFullTestAllTypes())
	{
	SingleBool = false,
	SingleInt32 = 0,
	SingleString = "",
	SingleBytes = ByteString.Empty,
	SingleForeignEnum = 0,
	SingleForeignMessage = null,
	};
	expected.RepeatedDouble.Clear();

	Assert.AreEqual(expected, message);

	// Separately, maps.
	var mapMessage = new TestMap { MapStringString = { { "key1", "value1" }, { "key2", "value2" } } };
	fields = TestMap.Descriptor.Fields;
	fields[TestMap.MapStringStringFieldNumber].Accessor.Clear(mapMessage);
	Assert.AreEqual(0, mapMessage.MapStringString.Count);
	}

	[Test]
	public void Clear_Proto3Optional()
	{
	TestProto3Optional message = new TestProto3Optional
	{
	OptionalInt32 = 0,
	OptionalNestedMessage = new TestProto3Optional.Types.NestedMessage()
	};
	var primitiveField = TestProto3Optional.Descriptor.Fields[TestProto3Optional.OptionalInt32FieldNumber];
	var messageField = TestProto3Optional.Descriptor.Fields[TestProto3Optional.OptionalNestedMessageFieldNumber];

	Assert.True(message.HasOptionalInt32);
	Assert.NotNull(message.OptionalNestedMessage);

	primitiveField.Accessor.Clear(message);
	messageField.Accessor.Clear(message);

	Assert.False(message.HasOptionalInt32);
	Assert.Null(message.OptionalNestedMessage);
	}

	[Test]
	public void Clear_Proto3_Oneof()
	{
	var message = new TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[TestProtos.TestAllTypes.OneofUint32FieldNumber].Accessor;

	// The field accessor Clear method only affects a oneof if the current case is the one being cleared.
	message.OneofString = "hello";
	Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);
	accessor.Clear(message);
	Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);

	message.OneofUint32 = 100;
	Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.OneofUint32, message.OneofFieldCase);
	accessor.Clear(message);
	Assert.AreEqual(TestProtos.TestAllTypes.OneofFieldOneofCase.None, message.OneofFieldCase);
	}

	[Test]
	public void Clear_Proto2_Oneof()
	{
	var message = new Proto2.TestAllTypes();
	var accessor = ((IMessage) message).Descriptor.Fields[Proto2.TestAllTypes.OneofUint32FieldNumber].Accessor;

	// The field accessor Clear method only affects a oneof if the current case is the one being cleared.
	message.OneofString = "hello";
	Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);
	accessor.Clear(message);
	Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.OneofString, message.OneofFieldCase);

	message.OneofUint32 = 100;
	Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.OneofUint32, message.OneofFieldCase);
	accessor.Clear(message);
	Assert.AreEqual(Proto2.TestAllTypes.OneofFieldOneofCase.None, message.OneofFieldCase);
	}

	[Test]
	public void FieldDescriptor_ByName()
	{
	var descriptor = TestProtos.TestAllTypes.Descriptor;
	Assert.AreSame(
	descriptor.Fields[TestProtos.TestAllTypes.SingleBoolFieldNumber],
	descriptor.Fields["single_bool"]);
	}

	[Test]
	public void FieldDescriptor_NotFound()
	{
	var descriptor = TestProtos.TestAllTypes.Descriptor;
	Assert.Throws<KeyNotFoundException>(() => descriptor.Fields[999999].ToString());
	Assert.Throws<KeyNotFoundException>(() => descriptor.Fields["not found"].ToString());
	}

	[Test]
	public void GetExtensionValue()
	{
	var message = SampleMessages.CreateFullTestAllExtensions();

	// test that the reflector works, since the reflector just runs through IExtendableMessage
	Assert.AreEqual(message.GetExtension(OptionalBoolExtension), Proto2.TestAllExtensions.Descriptor.FindFieldByNumber(OptionalBoolExtension.FieldNumber).Accessor.GetValue(message));
	}

	[Test]
	public void GetRepeatedExtensionValue()
	{
	// check to make sure repeated accessor uses GetOrRegister
	var message = new Proto2.TestAllExtensions();

	Assert.IsNull(message.GetExtension(RepeatedBoolExtension));
	Assert.IsNotNull(Proto2.TestAllExtensions.Descriptor.FindFieldByNumber(RepeatedBoolExtension.FieldNumber).Accessor.GetValue(message));
	Assert.IsNotNull(message.GetExtension(RepeatedBoolExtension));

	message.ClearExtension(RepeatedBoolExtension);
	Assert.IsNull(message.GetExtension(RepeatedBoolExtension));
	}

	[Test]
	public void HasPresence()
	{
	// Proto3
	var fields = TestProtos.TestAllTypes.Descriptor.Fields;
	Assert.IsFalse(fields[TestProtos.TestAllTypes.SingleBoolFieldNumber].HasPresence);
	Assert.IsTrue(fields[TestProtos.TestAllTypes.OneofBytesFieldNumber].HasPresence);
	Assert.IsTrue(fields[TestProtos.TestAllTypes.SingleForeignMessageFieldNumber].HasPresence);
	Assert.IsFalse(fields[TestProtos.TestAllTypes.RepeatedBoolFieldNumber].HasPresence);

	fields = TestMap.Descriptor.Fields;
	Assert.IsFalse(fields[TestMap.MapBoolBoolFieldNumber].HasPresence);

	fields = TestProto3Optional.Descriptor.Fields;
	Assert.IsTrue(fields[TestProto3Optional.OptionalBoolFieldNumber].HasPresence);

	// Proto2
	fields = Proto2.TestAllTypes.Descriptor.Fields;
	Assert.IsTrue(fields[Proto2.TestAllTypes.OptionalBoolFieldNumber].HasPresence);
	Assert.IsTrue(fields[Proto2.TestAllTypes.OneofBytesFieldNumber].HasPresence);
	Assert.IsTrue(fields[Proto2.TestAllTypes.OptionalForeignMessageFieldNumber].HasPresence);
	Assert.IsFalse(fields[Proto2.TestAllTypes.RepeatedBoolFieldNumber].HasPresence);

	fields = Proto2.TestRequired.Descriptor.Fields;
	Assert.IsTrue(fields[Proto2.TestRequired.AFieldNumber].HasPresence);
	}
	}
	}