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package gnu.jargs.test;
import jargs.gnu.CmdLineParser;
import java.text.DateFormat;
import java.text.ParseException;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
import junit.framework.TestCase;
public class CustomOptionTestCase extends TestCase {
public CustomOptionTestCase(String name) {
super(name);
}
public void testCustomOption() throws Exception {
Calendar calendar = Calendar.getInstance();
CmdLineParser parser = new CmdLineParser();
CmdLineParser.Option date =
parser.addOption(new ShortDateOption('d', "date"));
parser.parse(new String[]{"-d", "11/03/2003"}, Locale.UK);
Date d = (Date)parser.getOptionValue(date);
calendar.setTime(d);
assertEquals(11, calendar.get(Calendar.DAY_OF_MONTH));
assertEquals(Calendar.MARCH, calendar.get(Calendar.MONTH));
assertEquals(2003, calendar.get(Calendar.YEAR));
parser.parse(new String[]{"-d", "11/03/2003"}, Locale.US);
d = (Date)parser.getOptionValue(date);
calendar.setTime(d);
assertEquals(3, calendar.get(Calendar.DAY_OF_MONTH));
assertEquals(Calendar.NOVEMBER, calendar.get(Calendar.MONTH));
assertEquals(2003, calendar.get(Calendar.YEAR));
}
public void testIllegalCustomOption() throws Exception {
CmdLineParser parser = new CmdLineParser();
CmdLineParser.Option date =
parser.addOption(new ShortDateOption('d', "date"));
try {
parser.parse(new String[]{"-d", "foobar"}, Locale.US);
fail("Expected IllegalOptionValueException");
}
catch (CmdLineParser.IllegalOptionValueException e) {
//pass
}
}
public static class ShortDateOption extends CmdLineParser.Option {
public ShortDateOption( char shortForm, String longForm ) {
super(shortForm, longForm, true);
}
protected Object parseValue( String arg, Locale locale )
throws CmdLineParser.IllegalOptionValueException {
try {
DateFormat dateFormat =
DateFormat.getDateInstance(DateFormat.SHORT, locale);
return dateFormat.parse(arg);
}
catch (ParseException e) {
throw new CmdLineParser.IllegalOptionValueException(this, arg);
}
}
}
}
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