@Test
public void testIsValidQueueName() {

  // permutations of valid/invalid names
  final String valid = "valid";
  final String validRooted = "root.valid";
  final String rootOnly = "root";
  final String startDot = ".invalid";
  final String endDot = "invalid.";
  final String startSpace = " invalid";
  final String endSpace = "invalid ";
  final String unicodeSpace = "\u00A0invalid";
  assertFalse("'null' queue was not marked as invalid",
      isValidQueueName(null));
  assertTrue("empty queue was not tagged valid", isValidQueueName(""));
  assertTrue("Simple queue name was not tagged valid (valid)",
      isValidQueueName(valid));
  assertTrue("Root only queue was not tagged valid (root)",
      isValidQueueName(rootOnly));
  assertTrue("Root prefixed queue was not tagged valid (root.valid)",
      isValidQueueName(validRooted));
  assertFalse("Queue starting with dot was not tagged invalid (.invalid)",
      isValidQueueName(startDot));
  assertFalse("Queue ending with dot was not tagged invalid (invalid.)",
      isValidQueueName(endDot));
  assertFalse("Queue starting with space was not tagged invalid ( invalid)",
      isValidQueueName(startSpace));
  assertFalse("Queue ending with space was not tagged invalid (invalid )",
      isValidQueueName(endSpace));
  // just one for sanity check extensive tests are in the scheduler utils
  assertFalse("Queue with unicode space was not tagged as invalid (unicode)",
      isValidQueueName(unicodeSpace));
}