.body("abc")
        .build(),
    )
    val call = client.newCall(Request.Builder().url(server.url("/")).build())
    val response = call.execute()
    assertThat(response.handshake!!.peerPrincipal)
      .isEqualTo(X500Principal("CN=Local Host"))
    assertThat(response.handshake!!.localPrincipal)
      .isEqualTo(X500Principal("CN=Jethro Willis"))
    assertThat(response.body.string()).isEqualTo("abc")
  }

 * **Cookie**: domain, expiresAt, hostOnly, httpOnly, name, path, persistent, value
 * **Dispatcher**: executorService
 * **FormBody**: size
 * **Handshake**: cipherSuite, localCertificates, localPrincipal, peerCertificates, peerPrincipal,
   tlsVersion
 * **HandshakeCertificates**: keyManager, trustManager
 * **Headers**: size
 * **HeldCertificate**: certificate, keyPair
 * **HttpLoggingInterceptor**: level

    val tlsVersion: TlsVersion = handshake.tlsVersion()
    val cipherSuite: CipherSuite = handshake.cipherSuite()
    val peerCertificates: List<Certificate> = handshake.peerCertificates()
    val peerPrincipal: Principal? = handshake.peerPrincipal()
    val localCertificates: List<Certificate> = handshake.localCertificates()
    val localPrincipal: Principal? = handshake.localPrincipal()
  }

  @Test @Disabled
  fun headers() {

    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
  fun httpsWithClientAuth() {
    platform.assumeNotBouncyCastle()
    platform.assumeNotConscrypt()

    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
  fun httpsWithClientAuth() {
    platform.assumeNotBouncyCastle()
    platform.assumeNotConscrypt()

      )
    val tlsVersion: TlsVersion = handshake.tlsVersion
    val cipherSuite: CipherSuite = handshake.cipherSuite
    val peerCertificates: List<Certificate> = handshake.peerCertificates
    val peerPrincipal: Principal? = handshake.peerPrincipal
    val localCertificates: List<Certificate> = handshake.localCertificates
    val localPrincipal: Principal? = handshake.localPrincipal
  }

  @Test
  fun headers() {