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#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 System.Collections.Generic;
using System.IO;
using System.Reflection;
using Google.Protobuf.TestProtos;
using NUnit.Framework;
namespace Google.Protobuf
{
public class FieldCodecTest
{
#pragma warning disable 0414 // Used by tests via reflection - do not remove!
private static readonly List<ICodecTestData> Codecs = new List<ICodecTestData>
{
new FieldCodecTestData<bool>(FieldCodec.ForBool(100), true, "Bool"),
new FieldCodecTestData<string>(FieldCodec.ForString(100), "sample", "String"),
new FieldCodecTestData<ByteString>(FieldCodec.ForBytes(100), ByteString.CopyFrom(1, 2, 3), "Bytes"),
new FieldCodecTestData<int>(FieldCodec.ForInt32(100), -1000, "Int32"),
new FieldCodecTestData<int>(FieldCodec.ForSInt32(100), -1000, "SInt32"),
new FieldCodecTestData<int>(FieldCodec.ForSFixed32(100), -1000, "SFixed32"),
new FieldCodecTestData<uint>(FieldCodec.ForUInt32(100), 1234, "UInt32"),
new FieldCodecTestData<uint>(FieldCodec.ForFixed32(100), 1234, "Fixed32"),
new FieldCodecTestData<long>(FieldCodec.ForInt64(100), -1000, "Int64"),
new FieldCodecTestData<long>(FieldCodec.ForSInt64(100), -1000, "SInt64"),
new FieldCodecTestData<long>(FieldCodec.ForSFixed64(100), -1000, "SFixed64"),
new FieldCodecTestData<ulong>(FieldCodec.ForUInt64(100), 1234, "UInt64"),
new FieldCodecTestData<ulong>(FieldCodec.ForFixed64(100), 1234, "Fixed64"),
new FieldCodecTestData<float>(FieldCodec.ForFloat(100), 1234.5f, "Float"),
new FieldCodecTestData<double>(FieldCodec.ForDouble(100), 1234567890.5d, "Double"),
new FieldCodecTestData<ForeignEnum>(
FieldCodec.ForEnum(100, t => (int) t, t => (ForeignEnum) t), ForeignEnum.ForeignBaz, "Enum"),
new FieldCodecTestData<ForeignMessage>(
FieldCodec.ForMessage(100, ForeignMessage.Parser), new ForeignMessage { C = 10 }, "Message"),
};
#pragma warning restore 0414
[Test, TestCaseSource("Codecs")]
public void RoundTripWithTag(ICodecTestData codec)
{
codec.TestRoundTripWithTag();
}
[Test, TestCaseSource("Codecs")]
public void RoundTripRaw(ICodecTestData codec)
{
codec.TestRoundTripRaw();
}
[Test, TestCaseSource("Codecs")]
public void CalculateSize(ICodecTestData codec)
{
codec.TestCalculateSizeWithTag();
}
[Test, TestCaseSource("Codecs")]
public void DefaultValue(ICodecTestData codec)
{
codec.TestDefaultValue();
}
[Test, TestCaseSource("Codecs")]
public void FixedSize(ICodecTestData codec)
{
codec.TestFixedSize();
}
// This is ugly, but it means we can have a non-generic interface.
// It feels like NUnit should support this better, but I don't know
// of any better ways right now.
public interface ICodecTestData
{
void TestRoundTripRaw();
void TestRoundTripWithTag();
void TestCalculateSizeWithTag();
void TestDefaultValue();
void TestFixedSize();
}
public class FieldCodecTestData<T> : ICodecTestData
{
private readonly FieldCodec<T> codec;
private readonly T sampleValue;
private readonly string name;
public FieldCodecTestData(FieldCodec<T> codec, T sampleValue, string name)
{
this.codec = codec;
this.sampleValue = sampleValue;
this.name = name;
}
public void TestRoundTripRaw()
{
var stream = new MemoryStream();
var codedOutput = new CodedOutputStream(stream);
codec.ValueWriter(codedOutput, sampleValue);
codedOutput.Flush();
stream.Position = 0;
var codedInput = new CodedInputStream(stream);
Assert.AreEqual(sampleValue, codec.ValueReader(codedInput));
Assert.IsTrue(codedInput.IsAtEnd);
}
public void TestRoundTripWithTag()
{
var stream = new MemoryStream();
var codedOutput = new CodedOutputStream(stream);
codec.WriteTagAndValue(codedOutput, sampleValue);
codedOutput.Flush();
stream.Position = 0;
var codedInput = new CodedInputStream(stream);
codedInput.AssertNextTag(codec.Tag);
Assert.AreEqual(sampleValue, codec.Read(codedInput));
Assert.IsTrue(codedInput.IsAtEnd);
}
public void TestCalculateSizeWithTag()
{
var stream = new MemoryStream();
var codedOutput = new CodedOutputStream(stream);
codec.WriteTagAndValue(codedOutput, sampleValue);
codedOutput.Flush();
Assert.AreEqual(stream.Position, codec.CalculateSizeWithTag(sampleValue));
}
public void TestDefaultValue()
{
// WriteTagAndValue ignores default values
var stream = new MemoryStream();
var codedOutput = new CodedOutputStream(stream);
codec.WriteTagAndValue(codedOutput, codec.DefaultValue);
codedOutput.Flush();
Assert.AreEqual(0, stream.Position);
Assert.AreEqual(0, codec.CalculateSizeWithTag(codec.DefaultValue));
if (typeof(T).GetTypeInfo().IsValueType)
{
Assert.AreEqual(default(T), codec.DefaultValue);
}
// The plain ValueWriter/ValueReader delegates don't.
if (codec.DefaultValue != null) // This part isn't appropriate for message types.
{
codedOutput = new CodedOutputStream(stream);
codec.ValueWriter(codedOutput, codec.DefaultValue);
codedOutput.Flush();
Assert.AreNotEqual(0, stream.Position);
Assert.AreEqual(stream.Position, codec.ValueSizeCalculator(codec.DefaultValue));
stream.Position = 0;
var codedInput = new CodedInputStream(stream);
Assert.AreEqual(codec.DefaultValue, codec.ValueReader(codedInput));
}
}
public void TestFixedSize()
{
Assert.AreEqual(name.Contains("Fixed"), codec.FixedSize != 0);
}
public override string ToString()
{
return name;
}
}
}
}
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