assertThat(future.set(99)).isFalse();
    assertThat(future.setException(new IndexOutOfBoundsException())).isFalse();
    assertThat(future.setFuture(new AbstractFuture<Integer>() {})).isFalse();
    assertThat(future.setFuture(immediateFuture(99))).isFalse();
  }

  private static void assertCannotCancel(AbstractFuture<Integer> future) {
    assertThat(future.cancel(true)).isFalse();

    assertThat(future.set(99)).isFalse();
    assertThat(future.setException(new IndexOutOfBoundsException())).isFalse();
    assertThat(future.setFuture(new AbstractFuture<Integer>() {})).isFalse();
    assertThat(future.setFuture(immediateFuture(99))).isFalse();
  }

  private static void assertCannotCancel(AbstractFuture<Integer> future) {
    assertThat(future.cancel(true)).isFalse();

        0,
        1,
        6,
        new boolean[] {false, true, false, true, false, true, false});
    testRotate(
        new boolean[] {false, true, false, true, false, true, false},
        5,
        1,
        6,
        new boolean[] {false, true, false, true, false, true, false});
    testRotate(
        new boolean[] {false, true, false, true, false, true, false},

        0,
        1,
        6,
        new boolean[] {false, true, false, true, false, true, false});
    testRotate(
        new boolean[] {false, true, false, true, false, true, false},
        5,
        1,
        6,
        new boolean[] {false, true, false, true, false, true, false});
    testRotate(
        new boolean[] {false, true, false, true, false, true, false},

    reader.nextFrame(
      requireSettings = false,
      object : BaseTestHandler() {
        override fun priority(
          streamId: Int,
          streamDependency: Int,
          weight: Int,
          exclusive: Boolean,
        ) {
          assertThat(streamDependency).isEqualTo(0)
          assertThat(weight).isEqualTo(256)
          assertThat(exclusive).isFalse()
        }

        override fun headers(

    peer.acceptFrame() // SYN_STREAM
    peer.sendFrame().headers(false, 3, headerEntries("b", "banana"))
    peer.sendFrame().data(false, 3, Buffer().write(ByteArray(dataLength)), dataLength)
    peer.sendFrame().data(false, 3, Buffer().write(ByteArray(dataLength)), dataLength)
    peer.sendFrame().data(false, 3, Buffer().write(ByteArray(dataLength)), dataLength)
    peer.sendFrame().data(false, 3, Buffer().write(ByteArray(dataLength)), dataLength)

    Future<?> possiblyIgnoredError1 = serializer.submitAsync(thirdCallable, directExecutor());
    secondFuture.cancel(true);
    assertThat(secondCallable.called).isFalse();
    assertThat(thirdCallable.called).isFalse();
    firstFuture.set(null);
    assertThat(secondCallable.called).isFalse();
    assertThat(thirdCallable.called).isTrue();
  }

  public void testCancellationMultipleThreads() throws Exception {

    Future<?> possiblyIgnoredError1 = serializer.submitAsync(thirdCallable, directExecutor());
    secondFuture.cancel(true);
    assertThat(secondCallable.called).isFalse();
    assertThat(thirdCallable.called).isFalse();
    firstFuture.set(null);
    assertThat(secondCallable.called).isFalse();
    assertThat(thirdCallable.called).isTrue();
  }

  public void testCancellationMultipleThreads() throws Exception {

          ),
      )
    assertThat(okHttpCertificateWithBadSignature.checkSignature(root.keyPair.public)).isFalse()

    // Wrong public key.
    assertThat(okHttpCertificate.checkSignature(certificate.keyPair.public)).isFalse()
  }

  @Test
  fun `EC issuer and signature`() {
    val root =
      HeldCertificate.Builder()
        .certificateAuthority(0)

      assertThat(expected.message)
        .isEqualTo("At least one cipher suite is required")
    }
  }

  @Test
  fun cleartextBuilder() {
    val cleartextSpec = ConnectionSpec.Builder(false).build()
    assertThat(cleartextSpec.isTls).isFalse()
  }

  @Test
  fun tlsBuilder_explicitCiphers() {
    val tlsSpec =
      ConnectionSpec.Builder(true)
        .cipherSuites(CipherSuite.TLS_RSA_WITH_RC4_128_MD5)