@Test
  public void trackerUpdateOnSuccessTest() throws InterruptedException {
    doTrackerUpdateTest(true);
  }
Tests that the {@link Histogram} instances used by {@link AdaptiveOperationTracker} are updated correctly on
successful requests.
@throws InterruptedException
ambry-router/src/test/java/com/github/ambry/router/AdaptiveOperationTrackerTest.java