private void createRegionInClientCache() {
    ClientCache cache = ClientCacheFactory.getAnyInstance();
    assertThat(cache).isNotNull();
    ClientRegionFactory<String, Object> crf =
        cache.createClientRegionFactory(ClientRegionShortcut.PROXY);
    crf.create(PEOPLE_REGION_NAME);
  }
Dunit Test containing inter - operations between REST Client and Gemfire cache client

@since GemFire 8.0
geode-assembly/src/distributedTest/java/org/apache/geode/rest/internal/web/controllers/RestAPIsAndInterOpsDUnitTest.java