public static IEnumerable<object[]> CopyToData()
{
// Stream is positioned @ beginning of data
var data1 = new byte[] { 1, 2, 3 };
var stream1 = new MemoryStream(data1);
yield return new object[] { stream1, data1 };
// Stream is positioned in the middle of data
var data2 = new byte[] { 0xff, 0xf3, 0xf0 };
var stream2 = new MemoryStream(data2) { Position = 1 };
yield return new object[] { stream2, new byte[] { 0xf3, 0xf0 } };
// Stream is positioned after end of data
var data3 = data2;
var stream3 = new MemoryStream(data3) { Position = data3.Length + 1 };
yield return new object[] { stream3, Array.Empty<byte>() };
}
}