val buffer = Buffer()
    var receivedByteCount = 0L

    @Throws(IOException::class)
    override fun write(
      source: Buffer,
      byteCount: Long,
    ) {
      val toRead = minOf(remainingByteCount, byteCount)
      if (toRead > 0L) {
        source.read(buffer, toRead)
      }
      val toSkip = byteCount - toRead
      if (toSkip > 0L) {
        source.skip(toSkip)
      }

      for (RoundingMode mode : ALL_ROUNDING_MODES) {
        assertEquals(0L, LongMath.divide(0L, q, mode));
      }
    }
  }

  @GwtIncompatible // TODO
  public void testDivByZeroAlwaysFails() {
    for (long p : ALL_LONG_CANDIDATES) {
      for (RoundingMode mode : ALL_ROUNDING_MODES) {
        try {
          LongMath.divide(p, 0L, mode);
          fail("Expected ArithmeticException");

    delegate: Source,
    private val contentLength: Long,
  ) : ForwardingSource(delegate) {
    private var bytesReceived = 0L
    private var invokeStartEvent = true
    private var completed = false
    private var closed = false

    init {
      if (contentLength == 0L) {
        complete(null)
      }
    }

    @Throws(IOException::class)
    override fun read(
      sink: Buffer,

    override val isReady: Boolean
      get() = connectState == ConnectState.TLS_CONNECTED

    var tcpConnectDelayNanos = 0L
    var tcpConnectThrowable: Throwable? = null
    var yieldBeforeTcpConnectReturns = false
    var connectTcpNextPlan: FakePlan? = null
    var tlsConnectDelayNanos = 0L
    var tlsConnectThrowable: Throwable? = null
    var connectTlsNextPlan: FakePlan? = null

    fun createRetry(): FakePlan {

   * @return the sum
   */
  public long sumThenReset() {
    long sum = base;
    Cell[] as = cells;
    base = 0L;
    if (as != null) {
      int n = as.length;
      for (int i = 0; i < n; ++i) {
        Cell a = as[i];
        if (a != null) {
          sum += a.value;
          a.value = 0L;
        }
      }
    }
    return sum;
  }

  /**

      for (RoundingMode mode : ALL_ROUNDING_MODES) {
        assertEquals(0L, LongMath.divide(0L, q, mode));
      }
    }
  }

  @GwtIncompatible // TODO
  public void testDivByZeroAlwaysFails() {
    for (long p : ALL_LONG_CANDIDATES) {
      for (RoundingMode mode : ALL_ROUNDING_MODES) {
        try {
          LongMath.divide(p, 0L, mode);
          fail("Expected ArithmeticException");

  public void testFlatMapToLong_nullStream() {
    SpliteratorTester.ofLong(
            () ->
                CollectSpliterators.flatMapToLong(
                    Arrays.spliterator(new Long[] {1L, 0L, 1L, 2L, 3L}),
                    (Long i) -> i == 0L ? null : LongStream.of(i).spliterator(),
                    Spliterator.SIZED | Spliterator.DISTINCT | Spliterator.NONNULL,
                    4))
        .expect(1L, 1L, 2L, 3L);
  }

  }
}

internal fun checkDuration(
  name: String,
  duration: Long,
  unit: TimeUnit,
): Int {
  check(duration >= 0L) { "$name < 0" }
  val millis = unit.toMillis(duration)
  require(millis <= Integer.MAX_VALUE) { "$name too large" }
  require(millis != 0L || duration <= 0L) { "$name too small" }
  return millis.toInt()
}

internal fun checkDuration(
  name: String,
  duration: Duration,
): Int {

      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testCheckPositive_zeroLong() {
    try {
      MathPreconditions.checkPositive("long", 0L);
      fail();
    } catch (IllegalArgumentException expected) {
    }
  }

  public void testCheckPositive_maxLong() {
    MathPreconditions.checkPositive("long", Long.MAX_VALUE);
  }

          .add("Content-Length", "0")
      this.trailers = Headers.Builder()
      this.throttleBytesPerPeriod = Long.MAX_VALUE
      this.throttlePeriodNanos = 0L
      this.socketPolicy = KeepOpen
      this.bodyDelayNanos = 0L
      this.headersDelayNanos = 0L
      this.pushPromises = mutableListOf()
      this.settings = Settings()
    }

    internal constructor(mockResponse: MockResponse) {