@Before
  public void setUp() throws Exception {
    regionName = getUniqueName();

    vm0 = getHost(0).getVM(0);
    vm1 = getHost(0).getVM(1);
    vm2 = getHost(0).getVM(2);
    vm3 = getHost(0).getVM(3);

    localMaxMemory = 10;
    key1 = "key1";
    cacheLoaderArg = "loaderArg";
  }
This is a dunit test for PartitionedRegion creation and Region API's functionality.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/PartitionedRegionAPIDUnitTest.java