public void Content()
{
MemoryStream firstStream = new MemoryStream(new byte[] { 1, 2, 3, 4, 5 });
MemoryStream secondStream = new MemoryStream(new byte[] { 6, 7, 8, 9 });
MergedStream mergedStream = new MergedStream(firstStream, secondStream);
byte[] result = mergedStream.ToArray();
Assert.Equal(new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9 }, result);
}
