But if you need to access variables and objects from the same **FastAPI** app, or you need to perform small background tasks (like sending an email notification), you can simply just use `BackgroundTasks`.

## Recap { #recap }

            return entity;
        });
    }

    // ===================================================================================
    //                                                                        Small Helper
    //                                                                        ============
    /**
     * Verifies that the CRUD mode matches the expected mode.
     *
     * @param crudMode the actual CRUD mode

            // Only stub supportsIntegrity - isEstablished won't be called due to short-circuit
            when(mockCtx.supportsIntegrity()).thenReturn(false);

            // A small consumer that only uses MIC if advertised as available
            byte[] data = new byte[] { 1, 2 };
            if (mockCtx.supportsIntegrity() && mockCtx.isEstablished()) {
                mockCtx.calculateMIC(data);

 * interaction with {@link NdrBuffer}.  All public behaviour is exercised.
 */
@ExtendWith(MockitoExtension.class)
class NdrShortTest {

    /**
     * A small reusable buffer for encode/decode tests.
     */
    private byte[] raw;
    private NdrBuffer buf;

    @BeforeEach
    void setUp() {
        // 10 bytes is more than enough for the 2-byte short

        });

        assertThrows(CIFSException.class, () -> {
            preauthService.initializeSession("test", new byte[8], PreauthIntegrityService.HASH_ALGO_SHA512); // Too small
        });
    }

    @Test
    @DisplayName("Test unsupported hash algorithm")
    public void testUnsupportedHashAlgorithm() {
        byte[] salt = preauthService.generatePreauthSalt();

        @Test
        @DisplayName("Should throw exception with insufficient buffer")
        void testReadBytesWireFormatInsufficientBuffer() {
            // Given
            byte[] buffer = new byte[1]; // Too small

            // When & Then
            assertThrows(ArrayIndexOutOfBoundsException.class, () -> response.readBytesWireFormat(buffer, 0));
        }

        @Test

    // ===================================================================================
    //                                                                        Small Helper
    //                                                                        ============
    /**
     * Verify the CRUD mode.
     * @param crudMode The CRUD mode.
     * @param expectedMode The expected mode.

        return redirect(getClass());
    }

    // ===================================================================================
    //                                                                        Small Helper
    //                                                                        ============
    /**
     * Verifies that the provided CRUD mode matches the expected mode.
     *

    // ===================================================================================
    //                                                                        Small Helper
    //                                                                        ============
    /**
     * Verifies that the CRUD mode matches the expected mode.
     *
     * @param crudMode the actual CRUD mode

        assertEquals(sourceData.length, result);
        assertArrayEquals(sourceData, smallOutputBuffer);
    }

    @Test
    void testReadDataWireFormatExceedsBufferSize() {
        // Create a response with small output buffer
        byte[] smallOutputBuffer = new byte[5];
        TransCallNamedPipeResponse smallResponse = new TransCallNamedPipeResponse(mockConfig, smallOutputBuffer);

        byte[] buffer = new byte[100];