* Keep whichever TCP connection succeeds first and cancel all the others.
 * Race TCP only. Only attempt a TLS handshake on the winning TCP connection.

    assertThat(request.url.scheme).isEqualTo("https")
    val handshake = request.handshake
    assertThat(handshake!!.tlsVersion).isNotNull()
    assertThat(handshake.cipherSuite).isNotNull()
    assertThat(handshake.localPrincipal).isNotNull()
    assertThat(handshake.localCertificates.size).isEqualTo(1)
    assertThat(handshake.peerPrincipal).isNull()
    assertThat(handshake.peerCertificates.size).isEqualTo(0)
  }

  @Test

      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }
  }

  @Test
  @Disabled
  fun testGoogle() {
    assumeNetwork()

    val request = Request.Builder().url("https://google.com/robots.txt").build()

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      if (it.handshake!!.tlsVersion != TlsVersion.TLS_1_3) {

      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }

    client.connectionPool.evictAll()
    assertEquals(0, client.connectionPool.connectionCount())

    client.newCall(request).execute().use {
      assertThat(it.protocol).isEqualTo(Protocol.HTTP_2)
      assertThat(it.handshake!!.tlsVersion).isEqualTo(TlsVersion.TLS_1_3)
    }

    onEvent(
      SecureConnectStart(
        System.nanoTime(),
        call,
      ),
    )

  override fun secureConnectEnd(
    call: Call,
    handshake: Handshake?,
  ) = onEvent(SecureConnectEnd(System.nanoTime(), call, handshake))

  override fun connectEnd(
    call: Call,
    inetSocketAddress: InetSocketAddress,
    proxy: Proxy,
    protocol: Protocol?,

    }
      ?: requestLine.target.toHttpUrlOrNull()
      ?: requestUrl(socket, requestLine, headers)

  return RecordedRequest(
    connectionIndex = connectionIndex,
    exchangeIndex = exchangeIndex,
    handshake = socket.handshake,
    handshakeServerNames = socket.handshakeServerNames,
    method = requestLine.method,
    target = requestLine.target,
    version = requestLine.version,
    url = requestUrl,
    headers = headers,

   * connection the socket may be shared by multiple concurrent calls.
   */
  fun socket(): Socket

  /**
   * Returns the TLS handshake used to establish this connection, or null if the connection is not
   * HTTPS.
   */
  fun handshake(): Handshake?

  /**
   * Returns the protocol negotiated by this connection, or [Protocol.HTTP_1_1] if no protocol

    response.use {
      assertEquals(Protocol.HTTP_2, response.protocol)
      if (Build.VERSION.SDK_INT >= 29) {
        assertEquals(TlsVersion.TLS_1_3, response.handshake?.tlsVersion)
      } else {
        assertEquals(TlsVersion.TLS_1_2, response.handshake?.tlsVersion)
      }
      assertEquals(200, response.code)
      assertTrue(socketClass?.startsWith("com.android.org.conscrypt.") == true)
    }
  }

  @Test

| Java                                | Kotlin                          |
| :---------------------------------- | :------------------------------ |
| Handshake.get(SSLSession)           | SSLSession.handshake()          |
| Headers.of(Map<String, String>)     | Map<String, String>.toHeaders() |
| HttpUrl.get(String)                 | String.toHttpUrl()              |

      printEvent("connectStart");
    }

    @Override public void secureConnectStart(Call call) {
      printEvent("secureConnectStart");
    }

    @Override public void secureConnectEnd(Call call, Handshake handshake) {
      printEvent("secureConnectEnd");
    }

    @Override public void connectEnd(
        Call call, InetSocketAddress inetSocketAddress, Proxy proxy, Protocol protocol) {
      printEvent("connectEnd");