client.listener.assertFailure(IOException::class.java, "canceled")
    taskFaker.runTasks()
  }

  @Test
  fun serverCloseClosesConnection() {
    server.webSocket!!.close(1000, "Hello!")
    client.processNextFrame() // Read server close, send client close, close connection.
    assertThat(client.closed).isFalse()
    client.listener.assertClosing(1000, "Hello!")

 * Features:
 * - Simple state management (CLOSED, OPEN, HALF_OPEN)
 * - Lock-free atomic operations
 * - Configurable thresholds and timeouts
 * - No complex dependencies
 */
public class SimpleCircuitBreaker {

    private static final Logger log = LoggerFactory.getLogger(SimpleCircuitBreaker.class);

    /**
     * Circuit breaker states
     */
    public enum State {
        CLOSED, // Normal operation

  public void testSingleQuantile_median() {
    double referenceValue = REFERENCE_ALGORITHM.singleQuantile(1, 2, dataset.clone());
    for (QuantilesAlgorithm algorithm : NON_REFERENCE_ALGORITHMS) {
      assertWithMessage("Mismatch between %s and %s", algorithm, REFERENCE_ALGORITHM)
          .that(algorithm.singleQuantile(1, 2, dataset.clone()))
          .isWithin(ALLOWED_ERROR)
          .of(referenceValue);
    }
  }

        } finally {
            CloseableUtil.close(os);
        }
    }

    // ////////////////////////////////////////////////////////////////
    // from InputStream to StringBuilder
    //
    /**
     * Copies from an input stream to a {@link StringBuilder} using the platform default encoding.
     * <p>
     * The input stream is not closed.
     * </p>
     *

        // Need successThreshold (2) consecutive successes to close the circuit
        // Second success should close the circuit (threshold is 2)
        result = circuitBreaker.executeWithCircuitBreaker(() -> "success 1");
        assertEquals("success 1", result, "Should execute second success");
        assertEquals(State.CLOSED, circuitBreaker.getState(), "Circuit should be CLOSED after success threshold");

    throwIf(OPEN_THROWS);
  }

  public boolean closed() {
    return closed;
  }

  @Override
  public void write(byte[] b, int off, int len) throws IOException {
    throwIf(closed);
    throwIf(WRITE_THROWS);
    super.write(b, off, len);
  }

  @Override
  public void write(int b) throws IOException {
    throwIf(closed);
    throwIf(WRITE_THROWS);
    super.write(b);
  }

 *
 * {@snippet :
 * FluentFuture<UserName> userName =
 *     ClosingFuture.submit(
 *             closer -> closer.eventuallyClose(database.newTransaction(), closingExecutor),
 *             executor)
 *         .transformAsync((closer, transaction) -> transaction.queryClosingFuture("..."), executor)
 *         .transform((closer, result) -> result.get("userName"), directExecutor())

   * most [BufferedSource] instances, but not of [Buffer].
   */
  private fun responseBody(content: String): ResponseBody {
    val data = Buffer().writeUtf8(content)
    val source: Source =
      object : Source {
        var closed = false

        override fun close() {
          closed = true
        }

        override fun read(

    withLock {
      cancel = !source.finished && source.closed && (sink.finished || sink.closed)
      open = isOpen
    }
    if (cancel) {
      // RST this stream to prevent additional data from being sent. This is safe because the input
      // stream is closed (we won't use any further bytes) and the output stream is either finished
      // or closed (so RSTing both streams doesn't cause harm).

    Stopwatch stopwatch = Stopwatch.createStarted();

    String result = proxy.sleepThenReturnInput("x");

    assertThat(result).isEqualTo("x");
    assertThat(stopwatch.elapsed(MILLISECONDS)).isIn(Range.closed(DELAY_MS, ENOUGH_MS));
    assertThat(target.finished).isTrue();
  }

  public void testNewProxy_goodMethodWithNotEnoughTime() throws Exception {
    SampleImpl target = new SampleImpl(9999);