String.format("Packet type 0x%02X should be in valid range 0x00-0x16", packetType));
            }
        }

        @Test
        @DisplayName("Fragment flags should be within byte range")
        void testFragmentFlagsRange() {
            // Verify that fragment flags are within byte range (0x00-0xFF)

              "id": "byName",
              "options": "Used"
            },
            "properties": [
              {
                "id": "color",
                "value": {
                  "fixedColor": "orange",
                  "mode": "fixed"
                }
              }
            ]
          }
        ]
      },
      "gridPos": {
        "h": 6,
        "w": 4,
        "x": 6,

    void constructor_shouldSetHandleCorrectly() {
        // Arrange
        short level = 1;

        // Act
        queryPolicy = new MsrpcQueryInformationPolicy(mockPolicyHandle, level, mockNdrObject);

        // Assert
        assertSame(mockPolicyHandle, queryPolicy.handle);
    }

    @Test
    void constructor_shouldSetLevelCorrectly() {
        // Arrange
        short level = 7;

        // Act

    @Mock
    private NameServiceClient nameServiceClient;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
    }

    @Test
    void testGetLocalHost() {
        // Arrange
        NetbiosAddress expectedAddress = mock(NetbiosAddress.class);
        when(nameServiceClient.getLocalHost()).thenReturn(expectedAddress);

        // Act

        // Arrange
        when(negotiationResponse.isDFSSupported()).thenReturn(false);

        // Act
        boolean result = negotiationResponse.isDFSSupported();

        // Assert
        assertFalse(result);
        verify(negotiationResponse).isDFSSupported();
    }

    @Test
    @DisplayName("Test setupRequest method")
    void testSetupRequest() {
        // Arrange

        // Arrange
        byte[] dst = new byte[100];
        int dstIndex = 0;

        // Act
        int result = response.writeParametersWireFormat(dst, dstIndex);

        // Assert
        assertEquals(0, result);
    }

    @Test
    @DisplayName("writeParametersWireFormat with offset should return 0")
    void testWriteParametersWireFormatWithOffset() {
        // Arrange

            // Arrange & Act
            SmbFile file = new SmbFile(url, mockCifsContext);

            // Assert
            assertNotNull(file);
            assertEquals(mockCifsContext, file.getContext());
        }

        @Test
        void testConstructorWithStringURL() throws MalformedURLException {
            // Arrange & Act

    @Mock
    private SmbTreeHandleInternal handle;

    @Test
    @DisplayName("release(): verifies it is invoked exactly once")
    void release_invokedOnce() throws Exception {
        // Arrange: no setup needed; we verify interaction only

        // Act: call release
        handle.release();

        // Assert: verify one invocation and no more
        verify(handle, times(1)).release();

    }

    @Test
    @DisplayName("Default ctor: null message/cause; toString is class name; type hierarchy")
    void defaultConstructor_hasNullMessageAndCause_andTypeHierarchy() {
        // Arrange & Act
        SMBProtocolDowngradeException ex = new SMBProtocolDowngradeException();

        // Assert - message and cause are null
        assertNull(ex.getMessage(), "Default constructor should have null message");

        @DisplayName("Accepts IPC$ URLs (happy path)")
        @ValueSource(strings = { "smb://server/IPC$/foo", "smb://server/IPC$/PIPE/foo" })
        void constructsWithIpcShare(String url) throws Exception {
            // Arrange & Act
            SmbNamedPipe pipe = new SmbNamedPipe(url, SmbPipeResource.PIPE_TYPE_RDWR, ctx());

            // Assert: type is named pipe and pipe type preserved