}

  @Test fun clientTwoFrameHelloWithPongs() {
    data.write("010348656c".decodeHex()) // Hel
    data.write("8a00".decodeHex()) // Pong
    data.write("8a00".decodeHex()) // Pong
    data.write("8a00".decodeHex()) // Pong
    data.write("8a00".decodeHex()) // Pong
    data.write("80026c6f".decodeHex()) // lo
    clientReader.processNextFrame()
    callback.assertPong(EMPTY)

    clientWriter.writePing("Hello".encodeUtf8())
    assertData("898560b420bb28d14cd70f")
  }

  @Test fun serverEmptyPong() {
    serverWriter.writePong(EMPTY)
    assertData("8a00")
  }

  @Test fun clientEmptyPong() {
    clientWriter.writePong(EMPTY)
    assertData("8a8060b420bb")
  }

  @Test fun serverPongWithPayload() {
    serverWriter.writePong("Hello".encodeUtf8())

09FD          ; valid                  ;      ; NV8    # 10.0 BENGALI ABBREVIATION SIGN
09FE          ; valid                                  # 11.0 BENGALI SANDHI MARK
09FF..0A00    ; disallowed                             # NA   <reserved-09FF>..<reserved-0A00>
0A01          ; valid                                  # 4.0  GURMUKHI SIGN ADAK BINDI
0A02          ; valid                                  # 1.1  GURMUKHI SIGN BINDI

        def gradleVersion = GradleVersion.version("9.2")
        def allVersions = [
            "7.8.0",
            "8.9.0-alpha01", "8.9.0-beta01", "8.9.0-rc01", "8.9.0", "8.9.1",
            "8.10.0-alpha01", "8.10.0-beta01", "8.10.0-rc01", "8.10.0", "8.10.1",
            "8.11.0-alpha01", "8.11.0-beta01", "8.11.0-rc01",
            "8.12.0-alpha01", "8.12.0-beta01",
            "8.13.0-alpha01",
            "9.0.0-alpha11"
        ].shuffled()

    server.listener.assertClosing(1000, "Bye!")
    server.webSocket!!.finishReader()
    server.listener.assertClosed(1000, "Bye!")
  }

  @Test
  fun emptyCloseInitiatesShutdown() {
    server.sink.write("8800".decodeHex()).emit() // Close without code.
    client.processNextFrame()
    client.listener.assertClosing(1005, "")
    client.webSocket!!.finishReader()
    assertThat(client.webSocket!!.close(1000, "Bye!")).isTrue()

А решта - **FastAPI**.

Якщо ви запустите це й перейдете на [http://localhost:8000/v1/](http://localhost:8000/v1/), ви побачите відповідь від Flask:

```txt
Hello, World from Flask!
```

А якщо ви перейдете на [http://localhost:8000/v2](http://localhost:8000/v2), ви побачите відповідь від FastAPI:

```JSON
{
    "message": "Hello World"
}

Y el resto será manejado por **FastAPI**.

Si lo ejecutas y vas a [http://localhost:8000/v1/](http://localhost:8000/v1/) verás el response de Flask:

```txt
Hello, World from Flask!
```

Y si vas a [http://localhost:8000/v2](http://localhost:8000/v2) verás el response de FastAPI:

```JSON
{
    "message": "Hello World"
}

Geri kalanı ise **FastAPI** tarafından işlenecektir.

Eğer uygulamanızı çalıştırıp [http://localhost:8000/v1/](http://localhost:8000/v1/) adresine giderseniz, Flask'tan gelen response'u göreceksiniz:

```txt
Hello, World from Flask!
```

Ve eğer [http://localhost:8000/v2](http://localhost:8000/v2) adresine giderseniz, FastAPI'den gelen response'u göreceksiniz:

```JSON
{
    "message": "Hello World"
}

А всё остальное будет обрабатываться **FastAPI**.

Если вы запустите это и перейдёте по [http://localhost:8000/v1/](http://localhost:8000/v1/), вы увидите HTTP‑ответ от Flask:

```txt
Hello, World from Flask!
```

А если вы перейдёте по [http://localhost:8000/v2](http://localhost:8000/v2), вы увидите HTTP‑ответ от FastAPI:

```JSON
{
    "message": "Hello World"
}

And the rest will be handled by **FastAPI**.

If you run it and go to [http://localhost:8000/v1/](http://localhost:8000/v1/) you will see the response from Flask:

```txt
Hello, World from Flask!
```

And if you go to [http://localhost:8000/v2](http://localhost:8000/v2) you will see the response from FastAPI:

```JSON
{
    "message": "Hello World"
}