@Test
public void testMerge() {

    cbf.clear();
    
    cbf.add("a");
    cbf.add("a");
    VarCountingBloomFilter cbf2 = new VarCountingBloomFilter(ELEMENTS, spec.bucketsPerElement, EXP);
    cbf2.add("a");
    cbf2.add("a");
    cbf.merge(cbf2);
    assertEquals(4, cbf.maxBucket());
}