[CLI-158] deafult arguments only works if no arguments are submitted

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0
• Fix Version/s: 2.0
• Component/s: CLI-2.x
• Assignee: Unassigned
• Reporter: Andrew Oxenburgh
• Created: 04/Jun/08 14:23
• Updated: 06/Feb/09 06:59
• Resolved: 24/Jul/08 19:38

Description

When using multple arguments and defaults, the behaviour is counter-intuitive and will only pick up a default if no args are passed in.

For instance in the code below I have set up so 0, 1, or 2 args may bve accepted, with defaults 100 and 1000.

I expect it to behave as follows.
1. for 2 args, 1 and 2 the values should be 1 and 2. This works as expected.
2. for 0 args passed in the values should be 100 and 1000, picking up both of the defaults. This works as expected

3. for 1 arg passed in the values should be 1 and 1000, so the second argument picks up the second default value. The valuse become just 1, which is not as expected..

Currently, in the second case will only return 1 and ignore the defaults.

public void testSingleOptionSingleArgument() throws Exception {
String defaulValue1 = "100";
String defaultValue2 = "1000";
final DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
final ArgumentBuilder abuilder = new ArgumentBuilder();
final GroupBuilder gbuilder = new GroupBuilder();

DefaultOption bOption = obuilder.withShortName("b")
.withLongName("b")
.withArgument(abuilder.withName("b")
.withMinimum(0)
.withMaximum(2)
.withDefault(defaulValue1)
.withDefault(defaultValue2)
.create())
.create();

Group options = gbuilder
.withName("options")
.withOption(bOption)
.create();

Parser parser = new Parser();
parser.setHelpTrigger("--help");
parser.setGroup(options);
String enteredValue1 = "1";
String[] args = new String[]

{"-b", enteredValue1}

;
CommandLine cl = parser.parse(args);
CommandLine cmd = cl;
assertNotNull(cmd);
List b = cmd.getValues("-b");
assertEquals("[" + enteredValue1 + "]", b + "");
}