CommandOutputBuilder output = new CommandOutputBuilder();
output.printLn("MULTILINE 47");
output.printLn("TEXT 4 0 10 20");
output.printLn("1st line of text");
output.printLn("2nd line of text");
output.printLn(":");
output.printLn("Nth line of text");
output.printLn("ENDMULTILINE");
assertCommand(output, command);