@Parameterized.Parameters
  public static List<Object[]> data() {
    //@formatter:off
    return Arrays.asList(
        new Object[][]{
            {SIMPLE_OP_TRACKER, false},
            {SIMPLE_OP_TRACKER, true},
            {ADAPTIVE_OP_TRACKER, false},
            {ADAPTIVE_OP_TRACKER, true}});
    //@formatter:on
  }
Running for both {@link SimpleOperationTracker} and {@link AdaptiveOperationTracker}
@return an array with both {@link #SIMPLE_OP_TRACKER} and {@link #ADAPTIVE_OP_TRACKER}
ambry-router/src/test/java/com/github/ambry/router/OperationTrackerTest.java