return clientTestRule
  }

  fun setUp(
    protocol: Protocol,
    server: MockWebServer,
  ) {
    this.server = server
    this.protocol = protocol
    platform.assumeNotOpenJSSE()
    if (protocol === Protocol.HTTP_2) {
      platform.assumeHttp2Support()
      server.useHttps(handshakeCertificates.sslSocketFactory())
      client =
        clientTestRule.newClientBuilder()