@Before
  public void setUp() throws Exception {
    testDir = temporaryFolder.getRoot();
    assertTrue(testDir.exists());
    System.setProperty(SimpleStatSampler.ARCHIVE_FILE_NAME_PROPERTY, testDir.getAbsolutePath()
        + File.separator + SimpleStatSampler.DEFAULT_ARCHIVE_FILE_NAME);
  }
Integration tests for {@link SimpleStatSampler}.

@since GemFire 7.0
geode-core/src/integrationTest/java/org/apache/geode/internal/statistics/SimpleStatSamplerIntegrationTest.java