@Test
    void testBadPriorityValue() throws Exception {
        String[] args = new String[]{
                "--priority", "super_hyper_important"
        };
        VdsVisit.ArgumentParser parser = createMockArgumentParser();
        try {
            parser.parse(args);
            fail("no exception thrown");
        } catch (IllegalArgumentException e) {
            assertTrue(e.getMessage().contains("Unknown priority name"));
        }
    }
Test the parameters that could not be used in conjunction with
those in the first parameter test.
vespaclient-java/src/test/java/com/yahoo/vespavisit/VdsVisitTestCase.java