* part, so higher integers would appear (in this case linearly) more often
     * than lower ones.
     */
    return (int) Math.pow(a, 1.0 / concentration);
  }

  @AfterExperiment
  void tearDown() {
    double req = requests.get();
    double hit = req - misses.get();

    // Currently, this is going into /dev/null, but I'll fix that
    System.out.println("hit rate: " + hit / req);
  }

   * (byte[]) data.
   */
  T getExpected(T data);

  /** Cleans up anything created when creating the source or sink. */
  void tearDown() throws IOException;

  /** Factory for byte or char sources. */
  interface SourceFactory<S, T> extends SourceSinkFactory<S, T> {

    /** Creates a new source containing some or all of the given data. */

	return &adminErasureTestBed{
		erasureDirs: erasureDirs,
		objLayer:    objLayer,
		router:      adminRouter,
		done:        cancel,
	}, nil
}

// TearDown - method that resets the test bed for subsequent unit
// tests to start afresh.
func (atb *adminErasureTestBed) TearDown() {
	atb.done()
	removeRoots(atb.erasureDirs)
	resetTestGlobals()
}

// initTestObjLayer - Helper function to initialize an Erasure-based object

  @RegisterExtension
  val clientTestRule = OkHttpClientTestRule()

  private var client = clientTestRule.newClient()

  @AfterEach internal fun tearDown() {
    factory.close()
  }

  @Test fun nonRetryableIOException() {
    val exception = IOException("Non-handshake exception")
    assertThat(retryTlsHandshake(exception)).isFalse()
  }

  @Override
  public void setUp() throws IOException {
    rootDir = Jimfs.newFileSystem(Configuration.unix()).getPath("/tmp");
    Files.createDirectory(rootDir);
  }

  @Override
  public void tearDown() throws IOException {
    rootDir.getFileSystem().close();
  }

  public void testFileTraverser_emptyDirectory() throws Exception {
    assertThat(MoreFiles.fileTraverser().breadthFirst(rootDir)).containsExactly(rootDir);

    TestValueFactory()
      .apply {
        dns = fakeDns
      }

  @BeforeEach
  fun setup() {
    Authenticator.setDefault(recordingAuthenticator)
  }

  @AfterEach
  fun tearDown() {
    Authenticator.setDefault(null)
    factory.close()
  }

  @Test
  fun testBasicAuth() {
    fakeDns["server"] = listOf(InetAddress.getLocalHost())

    val route = factory.newRoute()

        originalFessConfig = ComponentUtil.getFessConfig();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        if (originalFessConfig != null) {
            ComponentUtil.setFessConfig(originalFessConfig);
        }
        super.tearDown(testInfo);
    }

    // Test basic initialization
    @Test
    public void test_hookInitialization() {

        provider = new FessUserTimeZoneProcessProvider();
        requestManager = createMockRequestManager();
    }

    @Override
    protected void tearDown(TestInfo testInfo) throws Exception {
        provider = null;
        requestManager = null;
        super.tearDown(testInfo);
    }

    // Test isUseTimeZoneHandling() method
    @Test
    public void test_isUseTimeZoneHandling() {

    super.setUp();

    exec = newCachedThreadPool();

    task.addListener(listenerLatch::countDown, directExecutor());
  }

  @Override
  protected void tearDown() throws Exception {
    if (exec != null) {
      exec.shutdown();
    }

    super.tearDown();
  }

  public void testListenerDoesNotRunUntilTaskCompletes() throws Exception {

    // Test default state of not started.

        handler.setFormatter(new SimpleFormatter());
        handler.setLevel(Level.ALL);
        rootLogger.addHandler(handler);
    }

    @Override
    public void tearDown(final TestInfo testInfo) throws Exception {
        super.tearDown(testInfo);
        // close runner
        runner.close();
        // delete all files
        runner.clean();
    }

    @Test