assertThat(webSocket.sentPingCount()).isEqualTo(3)
    assertThat(server.receivedPingCount()).isEqualTo(3)
    assertThat(webSocket.receivedPongCount()).isEqualTo(3)

    // The server has never pinged the client.
    assertThat(server.receivedPongCount()).isEqualTo(0)
    assertThat(webSocket.receivedPingCount()).isEqualTo(0)
    closeWebSockets(webSocket, server)
  }

  @Test