@Test
  public void incDeltaGIICompletedIncrementsDeltaGetInitialImagesCompleted() {
    cachePerfStats.incDeltaGIICompleted();

    assertThat(statistics.getLong(deltaGetInitialImagesCompletedId)).isEqualTo(1);
  }
Characterization test: {@code getInitialImagesCompleted} currently wraps to negative from max
integer value.
geode-core/src/test/java/org/apache/geode/internal/cache/CachePerfStatsTest.java