public void ReadCap1()
{
var mb = MessageBuilder.Create();
var dss = mb.CreateObject <DynamicSerializerState>();
dss.SetStruct(0, 1);
DeserializerState ds = dss;
Assert.ThrowsException <ArgumentOutOfRangeException>(() => ds.ReadCap(-1));
Assert.ThrowsException <InvalidOperationException>(() => ds.ReadCap(0));
}