## Pin your `fastapi` version { #pin-your-fastapi-version }

The first thing you should do is to "pin" the version of **FastAPI** you are using to the specific latest version that you know works correctly for your application.

For example, let's say you are using version `0.112.0` in your app.

    @Test
    void testMessageConstructor() {
        String errorMessage = "This is a test error message.";
        PACDecodingException e = new PACDecodingException(errorMessage);
        // Expect the message to be set correctly and cause to be null
        assertEquals(errorMessage, e.getMessage());
        assertNull(e.getCause());
    }

    /**
     * Test the constructor with a cause.
     */
    @Test

    @Test
    @DisplayName("readInt4 should correctly read 32-bit integer")
    void testReadInt4() {
        byte[] src = { (byte) 0x12, (byte) 0x34, (byte) 0x56, (byte) 0x78 };
        int result = SessionServicePacket.readInt4(src, 0);

        assertEquals(0x12345678, result);
    }

    @Test
    @DisplayName("readInt4 with negative bytes should handle correctly")
    void testReadInt4WithNegativeBytes() {

        @Test
        @DisplayName("Should calculate size correctly with no data")
        void testSizeWithNoData() {
            request.setData(new byte[0], 0, 0);
            int expectedSize = ((Smb2Constants.SMB2_HEADER_LENGTH + 48 + 7) / 8) * 8;
            assertEquals(expectedSize, request.size());
        }

        @Test
        @DisplayName("Should calculate size correctly with data")
        void testSizeWithData() {

    if not user_dict:
        raise HTTPException(status_code=400, detail="Incorrect username or password")
    user = UserInDB(**user_dict)
    hashed_password = fake_hash_password(form_data.password)
    if not hashed_password == user.hashed_password:
        raise HTTPException(status_code=400, detail="Incorrect username or password")

    return {"access_token": user.username, "token_type": "bearer"}

    assert response.json() == {"detail": "Incorrect username or password"}
    assert response.headers["WWW-Authenticate"] == "Basic"


def test_security_http_basic_invalid_password(client: TestClient):
    response = client.get("/users/me", auth=("stanleyjobson", "wrongpassword"))
    assert response.status_code == 401, response.text
    assert response.json() == {"detail": "Incorrect username or password"}

        config = new PropertyConfiguration(new Properties());
    }

    /**
     * Test constructor initialization with valid parameters
     */
    @Test
    @DisplayName("Test constructor initializes fields correctly")
    public void testConstructor() throws Exception {
        // Given
        String oldFileName = "oldFile.txt";
        String newFileName = "newFile.txt";

        // When

    private MsrpcDfsRootEnum dfsRootEnum;

    @BeforeEach
    void setUp() {
        dfsRootEnum = new MsrpcDfsRootEnum(TEST_SERVER);
    }

    @Test
    @DisplayName("Constructor should initialize all fields correctly")
    void testConstructorInitialization() {
        // Verify level is set to 200 for DFS root enumeration
        assertEquals(200, dfsRootEnum.level);

        // Verify DCE/RPC message properties

        @Test
        @DisplayName("Should correctly implement SmbBasicFileInfo interface")
        void testSmbBasicFileInfoInterface() throws SMBProtocolDecodingException {
            // Given
            byte[] buffer = new byte[60];
            SMBUtil.writeInt2(60, buffer, 0);

            // Use proper millisecond times that will be converted correctly
            long creationTimeMs = System.currentTimeMillis();

        // Basic setup, specific filter attributes will be set in each test
    }

    /**
     * Tests the constructor of DosFileFilter.
     * This test ensures that the constructor runs without errors and correctly initializes the object.
     * The wildcard parameter is stored but its filtering logic is handled server-side,
     * so we only verify its acceptance here.
     */
    @Test
    void testConstructor() {