@Before
  public void setUp() {
    String uniqueName = getClass().getSimpleName() + "_" + testName.getMethodName();
    regionName = uniqueName + "_region";
    partitionedRegionName = uniqueName + "_partitionedRegion";
    subregionName = uniqueName + "_subregion";

    managerVM = getVM(0);
    VM memberVM1 = getVM(1);
    VM memberVM2 = getVM(2);
    VM memberVM3 = getVM(3);

    memberVM1.invoke(() -> createMember(cacheRule));
    memberVM2.invoke(() -> createMember(cacheRule));
    memberVM3.invoke(() -> createMember(cacheRule));

    managerVM.invoke(() -> createManager(cacheRule));

    memberVMs = toArray(memberVM1, memberVM2, memberVM3);
  }
Distributed tests for {@link RegionMXBean}.

<p>
This class checks and verifies various data and operations exposed through RegionMXBean
interface.

<p>
Goal of the Test : RegionMBean gets created once region is created. Data like Region Attributes
data and stats are of proper value
geode-core/src/distributedTest/java/org/apache/geode/management/RegionManagementDUnitTest.java