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// 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.Reflection;
using Google.ProtocolBuffers.Descriptors;
using Google.ProtocolBuffers.TestProtos;
using NUnit.Framework;
namespace Google.ProtocolBuffers {
[TestFixture]
public class WireFormatTest {
/// <summary>
/// Keeps the attributes on FieldType and the switch statement in WireFormat in sync.
/// </summary>
[Test]
public void FieldTypeToWireTypeMapping() {
foreach (FieldInfo field in typeof(FieldType).GetFields(BindingFlags.Static | BindingFlags.Public)) {
FieldType fieldType = (FieldType)field.GetValue(null);
FieldMappingAttribute mapping = (FieldMappingAttribute)field.GetCustomAttributes(typeof(FieldMappingAttribute), false)[0];
Assert.AreEqual(mapping.WireType, WireFormat.GetWireType(fieldType));
}
}
[Test]
public void Serialization() {
TestAllTypes message = TestUtil.GetAllSet();
ByteString rawBytes = message.ToByteString();
Assert.AreEqual(rawBytes.Length, message.SerializedSize);
TestAllTypes message2 = TestAllTypes.ParseFrom(rawBytes);
TestUtil.AssertAllFieldsSet(message2);
}
[Test]
public void SerializeExtensions() {
// TestAllTypes and TestAllExtensions should have compatible wire formats,
// so if we serealize a TestAllExtensions then parse it as TestAllTypes
// it should work.
TestAllExtensions message = TestUtil.GetAllExtensionsSet();
ByteString rawBytes = message.ToByteString();
Assert.AreEqual(rawBytes.Length, message.SerializedSize);
TestAllTypes message2 = TestAllTypes.ParseFrom(rawBytes);
TestUtil.AssertAllFieldsSet(message2);
}
[Test]
public void ParseExtensions() {
// TestAllTypes and TestAllExtensions should have compatible wire formats,
// so if we serealize a TestAllTypes then parse it as TestAllExtensions
// it should work.
TestAllTypes message = TestUtil.GetAllSet();
ByteString rawBytes = message.ToByteString();
ExtensionRegistry registry = ExtensionRegistry.CreateInstance();
TestUtil.RegisterAllExtensions(registry);
registry = registry.AsReadOnly();
TestAllExtensions message2 =
TestAllExtensions.ParseFrom(rawBytes, registry);
TestUtil.AssertAllExtensionsSet(message2);
}
[Test]
public void ExtensionsSerializedSize() {
Assert.AreEqual(TestUtil.GetAllSet().SerializedSize, TestUtil.GetAllExtensionsSet().SerializedSize);
}
private void AssertFieldsInOrder(ByteString data) {
CodedInputStream input = data.CreateCodedInput();
uint previousTag = 0;
while (true) {
uint tag = input.ReadTag();
if (tag == 0) {
break;
}
Assert.IsTrue(tag > previousTag);
previousTag = tag;
input.SkipField(tag);
}
}
[Test]
public void InterleavedFieldsAndExtensions() {
// Tests that fields are written in order even when extension ranges
// are interleaved with field numbers.
ByteString data =
TestFieldOrderings.CreateBuilder()
.SetMyInt(1)
.SetMyString("foo")
.SetMyFloat(1.0F)
.SetExtension(UnitTestProtoFile.MyExtensionInt, 23)
.SetExtension(UnitTestProtoFile.MyExtensionString, "bar")
.Build().ToByteString();
AssertFieldsInOrder(data);
MessageDescriptor descriptor = TestFieldOrderings.Descriptor;
ByteString dynamic_data =
DynamicMessage.CreateBuilder(TestFieldOrderings.Descriptor)
.SetField(descriptor.FindDescriptor<FieldDescriptor>("my_int"), 1L)
.SetField(descriptor.FindDescriptor<FieldDescriptor>("my_string"), "foo")
.SetField(descriptor.FindDescriptor<FieldDescriptor>("my_float"), 1.0F)
.SetField(UnitTestProtoFile.MyExtensionInt.Descriptor, 23)
.SetField(UnitTestProtoFile.MyExtensionString.Descriptor, "bar")
.WeakBuild().ToByteString();
AssertFieldsInOrder(dynamic_data);
}
private const int UnknownTypeId = 1550055;
private static readonly int TypeId1 = TestMessageSetExtension1.Descriptor.Extensions[0].FieldNumber;
private static readonly int TypeId2 = TestMessageSetExtension2.Descriptor.Extensions[0].FieldNumber;
[Test]
public void SerializeMessageSet() {
// Set up a TestMessageSet with two known messages and an unknown one.
TestMessageSet messageSet =
TestMessageSet.CreateBuilder()
.SetExtension(
TestMessageSetExtension1.MessageSetExtension,
TestMessageSetExtension1.CreateBuilder().SetI(123).Build())
.SetExtension(
TestMessageSetExtension2.MessageSetExtension,
TestMessageSetExtension2.CreateBuilder().SetStr("foo").Build())
.SetUnknownFields(
UnknownFieldSet.CreateBuilder()
.AddField(UnknownTypeId,
UnknownField.CreateBuilder()
.AddLengthDelimited(ByteString.CopyFromUtf8("bar"))
.Build())
.Build())
.Build();
ByteString data = messageSet.ToByteString();
// Parse back using RawMessageSet and check the contents.
RawMessageSet raw = RawMessageSet.ParseFrom(data);
Assert.AreEqual(0, raw.UnknownFields.FieldDictionary.Count);
Assert.AreEqual(3, raw.ItemCount);
Assert.AreEqual(TypeId1, raw.ItemList[0].TypeId);
Assert.AreEqual(TypeId2, raw.ItemList[1].TypeId);
Assert.AreEqual(UnknownTypeId, raw.ItemList[2].TypeId);
TestMessageSetExtension1 message1 = TestMessageSetExtension1.ParseFrom(raw.GetItem(0).Message.ToByteArray());
Assert.AreEqual(123, message1.I);
TestMessageSetExtension2 message2 = TestMessageSetExtension2.ParseFrom(raw.GetItem(1).Message.ToByteArray());
Assert.AreEqual("foo", message2.Str);
Assert.AreEqual("bar", raw.GetItem(2).Message.ToStringUtf8());
}
[Test]
public void ParseMessageSet() {
ExtensionRegistry extensionRegistry = ExtensionRegistry.CreateInstance();
extensionRegistry.Add(TestMessageSetExtension1.MessageSetExtension);
extensionRegistry.Add(TestMessageSetExtension2.MessageSetExtension);
// Set up a RawMessageSet with two known messages and an unknown one.
RawMessageSet raw =
RawMessageSet.CreateBuilder()
.AddItem(
RawMessageSet.Types.Item.CreateBuilder()
.SetTypeId(TypeId1)
.SetMessage(
TestMessageSetExtension1.CreateBuilder()
.SetI(123)
.Build().ToByteString())
.Build())
.AddItem(
RawMessageSet.Types.Item.CreateBuilder()
.SetTypeId(TypeId2)
.SetMessage(
TestMessageSetExtension2.CreateBuilder()
.SetStr("foo")
.Build().ToByteString())
.Build())
.AddItem(
RawMessageSet.Types.Item.CreateBuilder()
.SetTypeId(UnknownTypeId)
.SetMessage(ByteString.CopyFromUtf8("bar"))
.Build())
.Build();
ByteString data = raw.ToByteString();
// Parse as a TestMessageSet and check the contents.
TestMessageSet messageSet =
TestMessageSet.ParseFrom(data, extensionRegistry);
Assert.AreEqual(123, messageSet.GetExtension(TestMessageSetExtension1.MessageSetExtension).I);
Assert.AreEqual("foo", messageSet.GetExtension(TestMessageSetExtension2.MessageSetExtension).Str);
// Check for unknown field with type LENGTH_DELIMITED,
// number UNKNOWN_TYPE_ID, and contents "bar".
UnknownFieldSet unknownFields = messageSet.UnknownFields;
Assert.AreEqual(1, unknownFields.FieldDictionary.Count);
Assert.IsTrue(unknownFields.HasField(UnknownTypeId));
UnknownField field = unknownFields[UnknownTypeId];
Assert.AreEqual(1, field.LengthDelimitedList.Count);
Assert.AreEqual("bar", field.LengthDelimitedList[0].ToStringUtf8());
}
}
}
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