@Test
public void testSubparserFormatHelp() throws ArgumentParserException {
ap.addArgument("--bar");
Subparsers subparsers = ap.addSubparsers();
Subparser parser = subparsers.addParser("install");
parser.description("This is sub-command of argparser4j.").epilog(
"This is epilog of sub-command.");
parser.addArgument("--foo");
assertEquals(String.format(
TextHelper.LOCALE_ROOT,
"usage: argparse4j install [-h] [--foo FOO]%n"