assertEquals("bla0", new String(next.getKey()));
assertEquals("blub0", new String(next.getValue()));
assertFalse(result.hasNext());
// perform a prefix lookup on database 'test2'
result = test2.reversePrefixLookup(0, "bla".getBytes(), null).get();
assertTrue(result.hasNext());
next = result.next();
assertEquals("bla2", new String(next.getKey()));
assertEquals("blub2", new String(next.getValue()));
assertTrue(result.hasNext());