@Parameterized.Parameters
  public static List<Object[]> data() {
    return Arrays.asList(
        new Object[][]{{StatsBasedCompactionPolicyFactory.class.getName()}, {CompactAllPolicyFactory.class.getName()}});
  }
Running for both CompactAll and Default Compaction Policy
@return an array with both {@code CompactionPolicyType.DEFAULT} and {@code CompactionPolicyType.COMPACT_ALL}.
ambry-store/src/test/java/com/github/ambry/store/CompactionPolicyTest.java