@Test
  public void incDeltaFullValuesSentIncrementsDeltaFullValuesSent() {
    cachePerfStats.incDeltaFullValuesSent();

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