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UnknownFieldSetTest.cs
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UnknownFieldSetTest.cs
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#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
// Copyright 2008 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 System;
using System.IO;
using Google.Protobuf.TestProtos;
using Proto2 = Google.Protobuf.TestProtos.Proto2;
using NUnit.Framework;
namespace Google.Protobuf
{
public class UnknownFieldSetTest
{
public class Data
{
public static System.Collections.IEnumerable Messages
{
get
{
yield return SampleMessages.CreateFullTestAllTypesProto2();
yield return SampleMessages.CreateFullTestAllTypes();
}
}
}
[Test]
public void EmptyUnknownFieldSet()
{
UnknownFieldSet unknownFields = new UnknownFieldSet();
Assert.AreEqual(0, unknownFields.CalculateSize());
}
[Test]
public void MergeUnknownFieldSet()
{
UnknownFieldSet unknownFields = new UnknownFieldSet();
UnknownField field = new UnknownField();
field.AddFixed32(123);
unknownFields.AddOrReplaceField(1, field);
UnknownFieldSet otherUnknownFields = new UnknownFieldSet();
Assert.IsFalse(otherUnknownFields.HasField(1));
UnknownFieldSet.MergeFrom(otherUnknownFields, unknownFields);
Assert.IsTrue(otherUnknownFields.HasField(1));
}
[Test]
[TestCaseSource(typeof(Data), "Messages")]
public void TestMergeCodedInput(IMessage message)
{
var emptyMessage = new TestEmptyMessage();
emptyMessage.MergeFrom(message.ToByteArray());
Assert.AreEqual(message.CalculateSize(), emptyMessage.CalculateSize());
Assert.AreEqual(message.ToByteArray(), emptyMessage.ToByteArray());
var newMessage = message.Descriptor.Parser.ParseFrom(emptyMessage.ToByteArray());
Assert.AreEqual(message, newMessage);
Assert.AreEqual(message.CalculateSize(), newMessage.CalculateSize());
}
[Test]
[TestCaseSource(typeof(Data), "Messages")]
public void TestMergeMessage(IMessage message)
{
var emptyMessage = new TestEmptyMessage();
var otherEmptyMessage = new TestEmptyMessage();
emptyMessage.MergeFrom(message.ToByteArray());
otherEmptyMessage.MergeFrom(emptyMessage);
Assert.AreEqual(message.CalculateSize(), otherEmptyMessage.CalculateSize());
Assert.AreEqual(message.ToByteArray(), otherEmptyMessage.ToByteArray());
}
[Test]
[TestCaseSource(typeof(Data), "Messages")]
public void TestEquals(IMessage message)
{
var emptyMessage = new TestEmptyMessage();
var otherEmptyMessage = new TestEmptyMessage();
Assert.AreEqual(emptyMessage, otherEmptyMessage);
emptyMessage.MergeFrom(message.ToByteArray());
Assert.AreNotEqual(emptyMessage.CalculateSize(),
otherEmptyMessage.CalculateSize());
Assert.AreNotEqual(emptyMessage, otherEmptyMessage);
}
[Test]
[TestCaseSource(typeof(Data), "Messages")]
public void TestHashCode(IMessage message)
{
var emptyMessage = new TestEmptyMessage();
int hashCode = emptyMessage.GetHashCode();
emptyMessage.MergeFrom(message.ToByteArray());
Assert.AreNotEqual(hashCode, emptyMessage.GetHashCode());
}
[Test]
[TestCaseSource(typeof(Data), "Messages")]
public void TestClone(IMessage message)
{
var emptyMessage = new TestEmptyMessage();
var otherEmptyMessage = new TestEmptyMessage();
otherEmptyMessage = emptyMessage.Clone();
Assert.AreEqual(emptyMessage.CalculateSize(), otherEmptyMessage.CalculateSize());
Assert.AreEqual(emptyMessage.ToByteArray(), otherEmptyMessage.ToByteArray());
emptyMessage.MergeFrom(message.ToByteArray());
otherEmptyMessage = emptyMessage.Clone();
Assert.AreEqual(message.CalculateSize(), otherEmptyMessage.CalculateSize());
Assert.AreEqual(message.ToByteArray(), otherEmptyMessage.ToByteArray());
}
[Test]
[TestCaseSource(typeof(Data), "Messages")]
public void TestDiscardUnknownFields(IMessage message)
{
var goldenEmptyMessage = new TestEmptyMessage();
byte[] data = message.ToByteArray();
int fullSize = message.CalculateSize();
Action<IMessage> assertEmpty = msg =>
{
Assert.AreEqual(0, msg.CalculateSize());
Assert.AreEqual(goldenEmptyMessage, msg);
};
Action<IMessage> assertFull = msg => Assert.AreEqual(fullSize, msg.CalculateSize());
// Test the behavior of the parsers with and without discarding, both generic and non-generic.
MessageParser<TestEmptyMessage> retainingParser1 = TestEmptyMessage.Parser;
MessageParser retainingParser2 = retainingParser1;
MessageParser<TestEmptyMessage> discardingParser1 = retainingParser1.WithDiscardUnknownFields(true);
MessageParser discardingParser2 = retainingParser2.WithDiscardUnknownFields(true);
// Test parse from byte[]
assertFull(retainingParser1.ParseFrom(data));
assertFull(retainingParser2.ParseFrom(data));
assertEmpty(discardingParser1.ParseFrom(data));
assertEmpty(discardingParser2.ParseFrom(data));
// Test parse from byte[] with offset
assertFull(retainingParser1.ParseFrom(data, 0, data.Length));
assertFull(retainingParser2.ParseFrom(data, 0, data.Length));
assertEmpty(discardingParser1.ParseFrom(data, 0, data.Length));
assertEmpty(discardingParser2.ParseFrom(data, 0, data.Length));
// Test parse from CodedInputStream
assertFull(retainingParser1.ParseFrom(new CodedInputStream(data)));
assertFull(retainingParser2.ParseFrom(new CodedInputStream(data)));
assertEmpty(discardingParser1.ParseFrom(new CodedInputStream(data)));
assertEmpty(discardingParser2.ParseFrom(new CodedInputStream(data)));
// Test parse from Stream
assertFull(retainingParser1.ParseFrom(new MemoryStream(data)));
assertFull(retainingParser2.ParseFrom(new MemoryStream(data)));
assertEmpty(discardingParser1.ParseFrom(new MemoryStream(data)));
assertEmpty(discardingParser2.ParseFrom(new MemoryStream(data)));
}
[Test]
public void TestReadInvalidWireTypeThrowsInvalidProtocolBufferException()
{
MemoryStream ms = new MemoryStream();
CodedOutputStream output = new CodedOutputStream(ms);
uint tag = WireFormat.MakeTag(1, (WireFormat.WireType)6);
output.WriteRawVarint32(tag);
output.WriteLength(-1);
output.Flush();
ms.Position = 0;
CodedInputStream input = new CodedInputStream(ms);
Assert.AreEqual(tag, input.ReadTag());
Assert.Throws<InvalidProtocolBufferException>(() => UnknownFieldSet.MergeFieldFrom(null, input));
}
}
}