protected void DoTest <T>(IEmittingCodec codec, T value, Action <T, T> assert)
{
Assert.That(codec.Type, Is.EqualTo(typeof(T)));
var manualCodec = new ManualCodec <T>(CodecContainer, codec);
if (codec.FixedSize.HasValue)
{
Assert.That(manualCodec.CalculateSize(value), Is.EqualTo(codec.FixedSize));
}
int size = manualCodec.CalculateSize(value);
var data = new byte[size];
fixed(byte *pData = data)
{
var p = pData;
manualCodec.Encode(ref p, value);
Assert.That(p - pData, Is.EqualTo(size));
p = pData;
int remainingBytes = size;
var decodedValue = manualCodec.Decode(ref p, ref remainingBytes, false);
assert(decodedValue, value);
Assert.That(p - pData, Is.EqualTo(size));
Assert.That(remainingBytes, Is.EqualTo(0));
p = pData;
remainingBytes = size;
decodedValue = manualCodec.Decode(ref p, ref remainingBytes, true);
assert(decodedValue, value);
Assert.That(p - pData, Is.EqualTo(size));
Assert.That(remainingBytes, Is.EqualTo(0));
if (size > 0)
{
p = pData;
remainingBytes = size - 1;
Assert.Throws <InvalidDataException>(() => manualCodec.Decode(ref p, ref remainingBytes, false));
}
}
}
public void CalculateSize()
{
var item = new MyClass(222);
const int size = 123123;
var emittingCodec = Substitute.For<IEmittingCodec>();
emittingCodec.WhenForAnyArgs(x => x.EmitCalculateSize(null, null)).Do(x =>
{
var context = x.Arg<IEmittingContext>();
context.IL.Ldc_I4(size);
});
var manualCodec = new ManualCodec<MyClass>(null, emittingCodec);
Assert.That(manualCodec.CalculateSize(item), Is.EqualTo(size));
}
public void CalculateSize()
{
var item = new MyClass(222);
const int size = 123123;
var emittingCodec = Substitute.For <IEmittingCodec>();
emittingCodec.WhenForAnyArgs(x => x.EmitCalculateSize(null, null)).Do(x =>
{
var context = x.Arg <IEmittingContext>();
context.IL.Ldc_I4(size);
});
var manualCodec = new ManualCodec <MyClass>(null, emittingCodec);
Assert.That(manualCodec.CalculateSize(item), Is.EqualTo(size));
}
public void UseOwnCodecContainer()
{
var innerCodec = Substitute.For <IManualCodec <int> >();
var codecContainer = Substitute.For <ICodecContainer>();
codecContainer.GetManualCodecFor <int>().Returns(innerCodec);
var emittingCodec = Substitute.For <IEmittingCodec>();
emittingCodec.WhenForAnyArgs(x => x.EmitCalculateSize(null, null)).Do(x =>
{
var context = x.Arg <IEmittingContext>();
context.EmitLoadManualCodecFor(typeof(int));
context.IL.Callvirt(typeof(object).GetMethod("GetHashCode"));
});
var manualCodec = new ManualCodec <object>(codecContainer, emittingCodec);
var result = manualCodec.CalculateSize(null);
Assert.That(result, Is.EqualTo(innerCodec.GetHashCode()));
}
public void UseOwnCodecContainer()
{
var innerCodec = Substitute.For<IManualCodec<int>>();
var codecContainer = Substitute.For<ICodecContainer>();
codecContainer.GetManualCodecFor<int>().Returns(innerCodec);
var emittingCodec = Substitute.For<IEmittingCodec>();
emittingCodec.WhenForAnyArgs(x => x.EmitCalculateSize(null, null)).Do(x =>
{
var context = x.Arg<IEmittingContext>();
context.EmitLoadManualCodecFor(typeof(int));
context.IL.Callvirt(typeof(object).GetMethod("GetHashCode"));
});
var manualCodec = new ManualCodec<object>(codecContainer, emittingCodec);
var result = manualCodec.CalculateSize(null);
Assert.That(result, Is.EqualTo(innerCodec.GetHashCode()));
}