@Before
  public void setUp() throws Exception {
    logWriter = PartitionedRegionTestHelper.getLogger();
  }
Test for Partitioned Region operations on a single node. Following tests are included:
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(1) testPut() - Tests the put() functionality for the partitioned region.
<p>
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/PartitionedRegionSingleNodeOperationsJUnitTest.java