public void testIsSubOption() {
CmdLineOption subOption = createSimpleOption("test", false);
GroupCmdLineOption groupOption = createGroupOption("group", false);
assertFalse(CmdLineUtils.isSubOption(groupOption, subOption));
groupOption.addSubOption(new GroupSubOption(subOption, false));
assertTrue(CmdLineUtils.isSubOption(groupOption, subOption));
}