assertThat(client.processNextFrame()).isFalse()
    client.listener.assertClosing(1000, "Bye!")
  }

  @Test
  fun protocolErrorBeforeCloseSendsFailure() {
    server.sink.write("0a00".decodeHex()).emit() // Invalid non-final ping frame.
    client.processNextFrame() // Detects error, send close, close connection.
    taskFaker.runTasks()
    client.webSocket!!.finishReader()

* 🌐 Add Ukrainian translation for `docs/uk/docs/python-types.md`. PR [#10080](https://github.com/tiangolo/fastapi/pull/10080) by [@rostik1410](https://github.com/rostik1410).