Tuesday, May 18, 2010

Commons-CLI repeated options

I was curious about how repeated options are handled in commons-cli... Here is a test with the conclusion of that curiosity.

    /**
     * An option that may be specified more than once.
     * 
     * @throws ParseException
     */
    @Test
    public void testMultipleInstance() throws ParseException {
        Options o = new Options().addOption("a", "apple", true, "Apples");

        String[] args = { "-a", "one", "-a", "two" };
        CommandLine c = new GnuParser().parse(o, args);

        assertArrayEquals(new String[] { "one", "two" }, c
                .getOptionValues("apple"));

        assertEquals("one", c.getOptionValue("apple"));
    }

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