@Test
public void testLong() {

  assertTrue(Hash.getLong("test1") != Hash.getLong("test2"));
  assertTrue(Hash.getLong("test1", "test2") != Hash.getLong("test2"));
  assertTrue(Hash.getLong("test1", "test2") != Hash.getLong("test2", "test1"));
  assertTrue(Hash.getLong("test1", "test3") == Hash.getLong("test1", "test3"));
}