list.add("b");
    Iterator<String> iterator = list.iterator();
    advance(iterator, 1);
    assertEquals("b", iterator.next());
  }

  public void testAdvance_pastEnd() {
    List<String> list = new ArrayList<>();
    list.add("a");
    list.add("b");
    Iterator<String> iterator = list.iterator();
    advance(iterator, 5);
    assertFalse(iterator.hasNext());
  }

        lenient().when(fileEntry.getName()).thenReturn("test");
    }

    @Test
    @DisplayName("Iterator without filter - simple case")
    void iteratorWithoutFilter() {
        // Setup: constructor calls advance() once
        when(delegate.hasNext()).thenReturn(true, false);
        when(delegate.next()).thenReturn(fileEntry);

        TestIterator iterator = new TestIterator(null);

        // Verify iteration

      @Override public MediaType contentType() {
        return body.contentType();
      }

      @Override public long contentLength() {
        return -1; // We don't know the compressed length in advance!
      }

      @Override public void writeTo(BufferedSink sink) throws IOException {
        BufferedSink gzipSink = Okio.buffer(new GzipSink(sink));
        body.writeTo(gzipSink);
        gzipSink.close();

      state = STATE_CLOSED
      if (trailers.size > 0) {
        client?.cookieJar?.receiveHeaders(url, trailers)
      }
    }
  }

  /** An HTTP body with a fixed length specified in advance. */
  private inner class FixedLengthSource(
    url: HttpUrl,
    private var bytesRemaining: Long,
  ) : AbstractSource(url) {
    init {
      if (bytesRemaining == 0L) {

 * streams.
 *
 * <p><i>Performance notes:</i> Unless otherwise noted, all of the iterables produced in this class
 * are <i>lazy</i>, which means that their iterators only advance the backing iteration when
 * absolutely necessary.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/CollectionUtilitiesExplained#iterables">{@code
 * Iterables}</a>.
 *

  }

  /**
   * Inserts element at current put position, advances, and signals. Call only when occupying
   * monitor.
   */
  private void insert(E x) {
    items[putIndex] = x;
    putIndex = inc(putIndex);
    ++count;
  }

  /**
   * Extracts element at current take position, advances, and signals. Call only when occupying
   * monitor.
   */
  private E extract() {

        case WitnessNotificationMessage.WITNESS_IP_CHANGE:
            decodeIpChangeMessage(buf, message);
            break;
        default:
            // Skip unknown message types
            buf.advance(messageLength - 8); // Skip remaining data (minus type and length)
            break;
        }

        return message;
    }

    /**
     * Decodes a resource change notification message.
     */

    taskFaker.runNextTask()
    assertThat(log).containsExactly(
      "red:starting@0",
      "blue:starting@0",
    )
    assertThat(taskFaker.executeCallCount).isEqualTo(2)

    // Advance time until the tasks complete.
    taskFaker.advanceUntil(100.µs)
    assertThat(log).containsExactly(
      "red:starting@0",
      "blue:starting@0",
      "red:finishing@100000",
      "blue:finishing@100000",

        }

        private WindowBucket getCurrentBucket() {
            long now = System.currentTimeMillis();

            // Check if we need to advance to next bucket
            if (now - lastBucketTime >= bucketSizeInMillis) {
                currentBucketIndex = (currentBucketIndex + 1) % numberOfBuckets;
                buckets[currentBucketIndex].reset(now);

          if (advanceTo(nextEntry) || nextInChain()) {
            return true;
          }
        }
      }
      return false;
    }

    /**
     * Advances to the given entry. Returns {@code true} if the entry was valid, {@code false} if it
     * should be skipped.
     */
    boolean advanceTo(E entry) {
      try {
        K key = entry.getKey();