public void WritesArrays(byte[] items, byte[] encoding)
{
var stream = new MemoryStream();
var output = Expression.Parameter(typeof(Stream));
var item = Expression.Variable(typeof(byte));
var writeItem = Expression.Call(output, typeof(Stream).GetMethod(nameof(Stream.WriteByte)), item);
var write = (Action <Stream>)Expression.Lambda(Codec.WriteArray(Expression.Constant(items), item, writeItem, output), new[] { output }).Compile();
using (stream)
{
write(stream);
}
Assert.Equal(encoding, stream.ToArray());
}
