});
    }

    @Test
    @DisplayName("Interaction: consumer is invoked for each found mapping")
    void interactionWithConsumerIsAsExpected() {
        // Arrange: choose a small set of known DOS codes
        List<Integer> inputs = Arrays.asList(0x00000000, 0x00050001, 0x007b0001, 0x0BADF00D);
        @SuppressWarnings("unchecked")
        BiConsumer<Integer, Integer> consumer = mock(BiConsumer.class);

**FastAPI** provides several tools to help you deal with **Security** easily, rapidly, in a standard way, without having to study and learn all the security specifications.

But first, let's check some small concepts.

## In a hurry? { #in-a-hurry }

If you don't care about any of these terms and you just need to add security with authentication based on username and password *right now*, skip to the next chapters.

Keep in mind that this means that the whole contents will be stored in memory. This will work well for small files.

But there are several cases in which you might benefit from using `UploadFile`.

## File Parameters with `UploadFile` { #file-parameters-with-uploadfile }

Define a file parameter with a type of `UploadFile`:

    @Test
    @DisplayName("Should throw exception when buffer too small for path")
    void testBufferTooSmallForPath() throws Exception {
        // Given
        String longPath = "\\\\server\\very_long_share_name_that_exceeds_buffer";
        Smb2TreeConnectRequest req = new Smb2TreeConnectRequest(mockConfig, longPath);
        byte[] smallBuffer = new byte[20]; // Too small for header + path

        // When & Then

   * PackageSanityTests. (The test would run on the JVM, too, if not for the suppression below, and
   * that would be a problem because it violates small-test rules. Note that we strip the
   * suppression externally, but it's OK because we don't enforce test-size rules there.)
   *
   * We'd just use PackageSanityTests directly, saving us from needing this separate type, but we're

import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.MockedStatic;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.smb1.UniAddress;

/**
 * Very small test suite that exercises the most important state-changing
 * behaviour of {@link SmbSession}. The tests use Mockito to stub the
 * heavy network interactions through {@link SmbTransport}.
 */
@ExtendWith(MockitoExtension.class)

And all of them (or any portion of them that you want) can take advantage of re-using these dependencies or any other dependencies you create.

And all these thousands of *path operations* can be as small as 3 lines:

{* ../../docs_src/security/tutorial002_an_py310.py hl[30:32] *}

## Recap { #recap }

You can now get the current user directly in your *path operation function*.

We are already halfway there.

    }

    @Test
    @DisplayName("Test hasMoreElements becomes false when all data is sent")
    void testHasMoreElementsBecomeFalse() {
        // Set small amounts so everything fits in one message
        transaction.setParameterBytesWritten(10);
        transaction.setDataBytesWritten(10);

        // First call processes all data
        transaction.nextElement();

 * is provided solely for the purpose of exercising the contract.
 */
@ExtendWith(MockitoExtension.class)
public class SmbResourceLocatorTest {

    /**
     * A very small concrete implementation used only by the tests. It parses
     * the URL string and performs minimal validation – just enough to make the
     * happy-path expectations deterministic.
     */

 * encode/decode operation.
 */
public class DcerpcMessageTest {

    /**
     * A trivial concrete subclass used for testing. It simply writes a
     * single small value in {@code encode_in} and reads it in
     * {@code decode_out}.
     */
    private static class TestMessage extends DcerpcMessage {
        int decodedValue = 0;

        TestMessage() {