+ bin_to_hex(this.node[1], 2) + bin_to_hex(this.node[2], 2) + bin_to_hex(this.node[3], 2) + bin_to_hex(this.node[4], 2)
                + bin_to_hex(this.node[5], 2);
    }

   *
   * {@snippet :
   * public static final ImmutableSortedSet<Number> LUCKY_NUMBERS =
   *     new ImmutableSortedSet.Builder<Number>(ODDS_FIRST_COMPARATOR)
   *         .addAll(SINGLE_DIGIT_PRIMES)
   *         .add(42)
   *         .build();
   * }
   *
   * <p>Builder instances can be reused; it is safe to call {@link #build} multiple times to build
   * multiple sets in series. Each set is a superset of the set created before it.

      "input": "foo"
    }
  ]
}
```

경로 매개변수 `item_id`가 `int`가 아닌 `"foo"` 값을 가졌기 때문입니다.

`int` 대신 `float`을 제공하면(예: [http://127.0.0.1:8000/items/4.2](http://127.0.0.1:8000/items/4.2)) 동일한 오류가 나타납니다.

/// check | 확인

즉, 파이썬 타입 선언을 하면 **FastAPI**는 데이터 검증을 합니다.

또한 오류에는 검증을 통과하지 못한 지점이 정확히 명시됩니다.

이는 API와 상호 작용하는 코드를 개발하고 디버깅하는 데 매우 유용합니다.

///

         * Validation for Maven 4.0 POM format.
         */
        V40,

        /**
         * Validation for Maven 4.1 POM format.
         */
        V41,

        /**
         * Validation for Maven 4.2 POM format.
         */
        V42
    }

    /**
     * Gets the identifier of the model from which the problem originated. The identifier is derived from the

            context = new PreauthIntegrityNegotiateContext(mockConfig, hashAlgos, salt);

            // Act
            int size = context.size();

            // Assert
            assertEquals(4 + (2 * hashAlgoCount) + 16, size);
        }

        @Test
        @DisplayName("Should handle offset in decode")
        void testDecodeWithOffset() throws SMBProtocolDecodingException {
            // Arrange

      "input": "foo"
    }
  ]
}
```

因為路徑參數 `item_id` 的值是 `"foo"`，它不是 `int`。

同樣的錯誤也會在你提供 `float` 而不是 `int` 時出現，例如：[http://127.0.0.1:8000/items/4.2](http://127.0.0.1:8000/items/4.2)

/// check

因此，搭配相同的 Python 型別宣告，**FastAPI** 會為你進行資料驗證。

注意錯誤也清楚指出驗證未通過的確切位置。

這在開發與除錯與你的 API 互動的程式碼時非常有幫助。

///

## 文件 { #documentation }

}
```

porque el parámetro de path `item_id` tenía un valor de `"foo"`, que no es un `int`.

El mismo error aparecería si proporcionaras un `float` en lugar de un `int`, como en: [http://127.0.0.1:8000/items/4.2](http://127.0.0.1:8000/items/4.2)

/// check | Revisa

Entonces, con la misma declaración de tipo de Python, **FastAPI** te ofrece validación de datos.

Nota que el error también indica claramente el punto exacto donde la validación falló.

  ]
}
```

because the path parameter `item_id` had a value of `"foo"`, which is not an `int`.

The same error would appear if you provided a `float` instead of an `int`, as in: [http://127.0.0.1:8000/items/4.2](http://127.0.0.1:8000/items/4.2)

/// check

So, with the same Python type declaration, **FastAPI** gives you data validation.

Notice that the error also clearly states exactly the point where the validation didn't pass.

  }

  public void testCodePointAt_indexOutOfBoundsException() {
    assertThrows(
        IndexOutOfBoundsException.class, () -> UnicodeEscaper.codePointAt("Testing...", 4, 2));
  }

  private static String escapeAsString(Escaper e, String s) {
    return e.escape(s);
  }

  }

  public void testSubmit_callable_returnsValue() throws Exception {
    ListenableFuture<Integer> future = submit(() -> 42, directExecutor());
    assertThat(future.isDone()).isTrue();
    assertThat(getDone(future)).isEqualTo(42);
  }

  public void testSubmit_callable_throwsException() {
    Exception exception = new Exception("Exception for testing");