assertThat(client.connectionPool.connectionCount()).isEqualTo(1)
  }

  /** https://github.com/square/okhttp/issues/3103  */
  @ParameterizedTest
  @ArgumentsSource(ProtocolParamProvider::class)
  fun domainFronting(protocol: Protocol) {
    setUp(protocol)
    client =
      client
        .newBuilder()
        .addNetworkInterceptor(
          Interceptor { chain: Interceptor.Chain? ->