part1 = "Now is the time ";
part2 = "for all good men ";
part3 = "to come to the aid of the party";
reference = part1 + part2 + part3;
source = new StringSource (reference);
buffer = new char[reference.length ()];
for (int i = 0; i < part1.length (); i++)
buffer[i] = (char)source.read ();
length = source.read (buffer, part1.length (), part2.length ());
assertTrue ("incorrect length", part2.length () == length);