val pin: String = CertificatePinner.pin(certificate)
    val default: CertificatePinner = CertificatePinner.DEFAULT
  }

  @Test
  fun certificatePinnerBuilder() {
    val builder: CertificatePinner.Builder = CertificatePinner.Builder()
    builder.add("", "pin1", "pin2")
  }

  @Test
  fun challenge() {

        assertEquals("Status of production-cluster is changed to GREEN.", result);
    }

    // Test with exception during ping
    @Test
    public void test_execute_pingException() {
        SearchEngineClient searchEngineClient = new SearchEngineClient() {
            @Override
            public PingResponse ping() {
                throw new RuntimeException("Connection failed");
            }
        };

## Pin your `fastapi` version { #pin-your-fastapi-version }

The first thing you should do is to "pin" the version of **FastAPI** you are using to the specific latest version that you know works correctly for your application.

    ]
    assert len(data_lines) == 2


# Keepalive ping tests


keepalive_app = FastAPI()


@keepalive_app.get("/slow-async", response_class=EventSourceResponse)
async def slow_async_stream():
    yield {"n": 1}
    # Sleep longer than the (monkeypatched) ping interval so a keepalive
    # comment is emitted before the next item.
    await asyncio.sleep(0.3)

        CertificatePinner.Builder().add("localhost", "sha256/afwiKY3RxoMmLkuRW1l7QsPZTJPwDS2pdDROQjXw8ig=").build()

      override fun isDefaultValue(value: CertificatePinner): Boolean = value.pins.isEmpty()
    }

    object ConnectionPoolOverride : Override<ConnectionPool> {
      override fun Interceptor.Chain.value(): ConnectionPool = connectionPool

            final PingResponse pingResponse = searchEngineClient.ping();
            writeJsonResponse(pingResponse.getStatus() == 0 ? HttpServletResponse.SC_OK : HttpServletResponse.SC_SERVICE_UNAVAILABLE,
                    "\"data\":" + pingResponse.getMessage());
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to process a ping request.", e);
            }

지금 바로 **FastAPI**로 프로덕션 애플리케이션을 만들 수 있습니다(그리고 아마도 한동안 그렇게 해오셨을 것입니다). 다만 나머지 코드와 함께 올바르게 동작하는 버전을 사용하고 있는지 확인하기만 하면 됩니다.

## `fastapi` 버전을 고정하기 { #pin-your-fastapi-version }

가장 먼저 해야 할 일은 여러분의 애플리케이션에서 올바르게 동작하는 것으로 알고 있는 **FastAPI**의 최신 구체 버전에 맞춰 사용 중인 버전을 "고정(pin)"하는 것입니다.

예를 들어, 앱에서 `0.112.0` 버전을 사용하고 있다고 가정해 보겠습니다.

`requirements.txt` 파일을 사용한다면 다음과 같이 버전을 지정할 수 있습니다:

```txt
fastapi[standard]==0.112.0
```

          MYSQL_USER: gorm
          MYSQL_PASSWORD: gorm
          MYSQL_RANDOM_ROOT_PASSWORD: "yes"
        ports:
          - 9910:3306
        options: >-
          --health-cmd "mysqladmin ping -ugorm -pgorm"
          --health-interval 10s
          --health-start-period 10s
          --health-timeout 5s
          --health-retries 10

    steps:
    - name: Set up Go 1.x
      uses: actions/setup-go@v5

auditwheel >= 6.1.0
# Install tensorboard, and keras
# Note that here we want the latest version that matches TF major.minor version
# Note that we must use nightly here as these are used in nightly jobs
# For release jobs, we will pin these on the release branch
keras-nightly ~= 3.12.0.dev
tb-nightly ~= 2.20.0.a
# For new protobuf, if V.x.y is gencode version, then runtime version U must be
# V <= U <= V+1

這就是為什麼目前版本仍為 `0.x.x`，這表示每個版本都可能包含破壞性變更。這遵循 [語意化版本（Semantic Versioning）](https://semver.org/) 的慣例。

你現在就可以用 **FastAPI** 建置生產環境的應用（而且你可能已經這麼做一段時間了），只要確保你使用的版本能與其餘程式碼正確相容。

## 鎖定你的 `fastapi` 版本 { #pin-your-fastapi-version }

首先，你應該將你使用的 **FastAPI** 版本「鎖定（pin）」到你知道對你的應用可正常運作的最新特定版本。

例如，假設你的應用使用 `0.112.0` 版本。

如果你使用 `requirements.txt` 檔案，可以這樣指定版本：

```txt
fastapi[standard]==0.112.0
```

這表示你會使用完全相同的 `0.112.0` 版本。