btree.addValue(createValue("b"), 7);
btree.addValue(createValue("a"), 6);
btree.addValue(createValue("d"), 4);
btree.addValue(createValue("e"), 8);
btree.addValue(createValue("b"), 9);
IndexQuery query = new BasicIndexQuery(BasicIndexQuery.GE, createValue("b"));
Callback callback = new Callback();
btree.search(query, callback);
List<Long> actual = callback.getPointers();
long[] expected = new long[] { 2, 7, 9, 3, 4, 5, 8 };
Assert.assertEquals("actual: " + actual, expected.length, actual.size());