}

    // Test reload with InputStream
    @Test
    public void test_reload_withComments() {
        String content = "# This is a comment\n" + "word1\n" + "\n" + // empty line
                "word2\n" + "# Another comment\n" + "word3\n";

        InputStream is = new ByteArrayInputStream(content.getBytes(StandardCharsets.UTF_8));
        stopwordsFile.reload(null, is);

        }
    }

    // Test reload with IOException
    @Test
    public void test_reload_ioException() throws Exception {
        // This test verifies error handling during reload
        // Since we can't easily mock the IOException, we'll test with invalid data
        writeTestFile("invalid => "); // Invalid format

        try {
            charMappingFile.reload(null);

   * as {@linkplain #reload the default implementation}.
   *
   * @since 17.0
   */
  @GwtIncompatible // Executor + Futures
  public static <K, V> CacheLoader<K, V> asyncReloading(
      CacheLoader<K, V> loader, Executor executor) {
    checkNotNull(loader);
    checkNotNull(executor);
    return new CacheLoader<K, V>() {
      @Override

   * as {@linkplain #reload the default implementation}.
   *
   * @since 17.0
   */
  @GwtIncompatible // Executor + Futures
  public static <K, V> CacheLoader<K, V> asyncReloading(
      CacheLoader<K, V> loader, Executor executor) {
    checkNotNull(loader);
    checkNotNull(executor);
    return new CacheLoader<K, V>() {
      @Override

    @Test
    public void test_update() {
        // Load data first
        protwordsFile.reload(null);

        // Get an existing item
        ProtwordsItem item = protwordsFile.get(1).get();
        item.setNewInput("updatedWord");

        // Update the item
        protwordsFile.update(item);

        // Verify the update
        protwordsFile.reload(null);

    }

    @Override
    public V load(K key) {
      return constant;
    }
  }

  /**
   * Returns a {@code new Object()} for every request, and increments a counter for every request.
   * An {@code Integer} loader that returns the key for {@code load} requests, and increments the
   * old value on {@code reload} requests. The load counts are accessible via {@link #getLoadCount}

    }

    @Override
    public V load(K key) {
      return constant;
    }
  }

  /**
   * Returns a {@code new Object()} for every request, and increments a counter for every request.
   * An {@code Integer} loader that returns the key for {@code load} requests, and increments the
   * old value on {@code reload} requests. The load counts are accessible via {@link #getLoadCount}

    CacheLoader<Object, Object> loader =
        new CacheLoader<Object, Object>() {
          @Override
          public Object load(Object key) {
            return one;
          }

          @Override
          public ListenableFuture<Object> reload(Object key, Object oldValue) {
            return immediateFuture(two);
          }
        };

`fastapi dev`를 실행하면 개발 모드가 시작됩니다.

기본적으로 **auto-reload**가 활성화되어 코드에 변경이 생기면 서버를 자동으로 다시 로드합니다. 이는 리소스를 많이 사용하며, 비활성화했을 때보다 안정성이 떨어질 수 있습니다. 개발 환경에서만 사용해야 합니다. 또한 컴퓨터가 자신과만 통신하기 위한(`localhost`) IP인 `127.0.0.1`에서 연결을 대기합니다.

## `fastapi run` { #fastapi-run }

`fastapi run`을 실행하면 프로덕션 모드로 FastAPI가 시작됩니다.

///

У каждого альтернативного ASGI‑сервера будет похожая команда; подробнее см. в их документации.

/// warning | Предупреждение

Uvicorn и другие серверы поддерживают опцию `--reload`, полезную в период разработки.

Опция `--reload` потребляет значительно больше ресурсов, менее стабильна и т.п.

Она сильно помогает во время **разработки**, но в **продакшн** её использовать **не следует**.

///