}
    }

    /**
     * Test that password comparison is constant-time by comparing execution times
     * for passwords that differ at different positions.
     */
    @Test
    public void testConstantTimePasswordComparison() throws Exception {
        char[] basePassword = "supersecretpassword123456789".toCharArray();
        char[] diffAtStart = "Xupersecretpassword123456789".toCharArray();

### Nâng cấp tài liệu API thay thế

Và bây giờ truy cập tới <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.

* Tài liệu thay thế cũng sẽ phản ánh tham số và body mới:

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Tóm lại

Bạn khai báo **một lần** kiểu dữ liệu của các tham số, body, etc là các tham số của hàm số.

    /**
     * Performs constant-time comparison of two char arrays to prevent timing attacks.
     * This method always compares the full length of both arrays, regardless of when
     * differences are found, making the execution time independent of the position
     * of differing characters.
     *
     * @param a first char array to compare
     * @param b second char array to compare
     * @return true if arrays are equal, false otherwise

// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.
//

      }
      iterations++;
      if (iterations >= maxIterations) {
        @SuppressWarnings("nullness") // safe because we pass sort() a range that contains real Ts
        T[] castBuffer = (T[]) buffer;
        // We've already taken O(k log k), let's make sure we don't take longer than O(k log k).
        sort(castBuffer, left, right + 1, comparator);
        break;
      }
    }
    bufferSize = k;

    /**
     * Test password storage using char arrays
     */
    @Test
    public void testPasswordAsCharArray() {
        String testPassword = "TestPassword123!";
        NtlmPasswordAuthenticator auth = new NtlmPasswordAuthenticator("testuser", testPassword);

        // Check that password can be retrieved
        assertEquals(testPassword, auth.getPassword());

        // Check that char array method works

/// tip

Notice that here as we are using standard `open()` that doesn't support `async` and `await`, we declare the path operation with normal `def`.

///

### `FileResponse` { #fileresponse }

Asynchronously streams a file as the response.

Takes a different set of arguments to instantiate than the other response types:

## Number validations: greater than and less than or equal { #number-validations-greater-than-and-less-than-or-equal }

The same applies for:

* `gt`: `g`reater `t`han
* `le`: `l`ess than or `e`qual

{* ../../docs_src/path_params_numeric_validations/tutorial005_an_py39.py hl[10] *}

## Number validations: floats, greater than and less than { #number-validations-floats-greater-than-and-less-than }

     * result in an <code>SmbFile</code> that is equal to the original.
     *
     * @return  The uncanonicalized full URL of this SMB resource.
     */

    public String getPath() {
        return url.toString();
    }

    String getUncPath0() {
        if (unc == null) {
            final char[] in = url.getPath().toCharArray();
            final char[] out = new char[in.length];

 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *