assertArrayEquals(originalBuffer, buffer);
        }
    }

    @Nested
    @DisplayName("ToString Tests")
    class ToStringTests {

        @Test
        @DisplayName("Should generate correct string representation")
        void testToString() throws Exception {
            // Set up notification with known values
            byte oplockLevel = 0x02;
            byte[] fileId = new byte[16];

        // Then
        assertNotNull(transCallNamedPipe);
        assertEquals(TEST_PIPE_NAME, transCallNamedPipe.name);
    }

    @Test
    @DisplayName("Test writeSetupWireFormat writes correct bytes")
    void testWriteSetupWireFormat() {
        // Given
        transCallNamedPipe = new TransCallNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_DATA, 0, TEST_DATA.length);
        byte[] dst = new byte[10];

        String inner = s.substring("SmbComLogoffAndX[".length(), s.length() - 1);
        assertFalse(inner.isEmpty(), "inner part of toString should not be empty");
    }

    @Test
    @DisplayName("constructor sets correct command value")
    void constructorSetsCorrectCommand() {
        SmbComLogoffAndX msg = new SmbComLogoffAndX(null);
        assertNotNull(msg, "Message should not be null");
        // SMB_COM_LOGOFF_ANDX = 0x74

            // Then
            assertNotNull(chunk);
        }
    }

    @Nested
    @DisplayName("Size Method Tests")
    class SizeTests {

        @Test
        @DisplayName("Should return correct size of 24 bytes")
        void testSize() {
            // Given
            SrvCopychunk chunk = new SrvCopychunk(0, 0, 0);

            // When
            int size = chunk.size();

            // Then

        int written = trans2QueryPathInfo.writeParametersWireFormat(buffer, 0);

        // Should write the entire path
        assertTrue(written > longPath.length());

        // Check information level is still correct
        int actualInfoLevel = SMBUtil.readInt2(buffer, 0);
        assertEquals(0x0101, actualInfoLevel);
    }

    @Test
    void testWriteParametersWithSpecialCharacters() {

        buffer[bufferIndex + 35] = 0x00; // setupCount = 0
        buffer[bufferIndex + 36] = 0x00; // reserved

        int bytesRead = response.readParameterWordsWireFormat(buffer, bufferIndex);

        // Verify the correct number of bytes were read (37 bytes total)
        assertEquals(37, bytesRead);

        // Verify values through reflection

 */
@TestInstance(TestInstance.Lifecycle.PER_CLASS)
class FileInformationTest {

    /**
     * Test that interface constants are correctly defined
     */
    @Test
    @DisplayName("Test FileInformation constants are correctly defined")
    void testInterfaceConstants() {
        // Verify all constants have expected values
        assertEquals((byte) 20, FileInformation.FILE_ENDOFFILE_INFO);

        void setUp() {
            mockConfig = mock(Configuration.class);
            when(mockConfig.getPid()).thenReturn(12345);
        }

        @Test
        @DisplayName("Should initialize with correct command and MID")
        void testConstructorInitialization() throws Exception {
            // Given
            int testMid = 42;

            // When

If you added the return type annotation, tools and editors would complain with a (correct) error telling you that your function is returning a type (e.g. a dict) that is different from what you declared (e.g. a Pydantic model).

        // Verify all values are set correctly
        assertEquals(TEST_CREATE_TIME, info.getCreateTime());
        assertEquals(TEST_LAST_ACCESS_TIME, info.getLastAccessTime());
        assertEquals(TEST_LAST_WRITE_TIME, info.getLastWriteTime());
        assertEquals(TEST_ATTRIBUTES, info.getAttributes());
    }

    @Test
    @DisplayName("Test getFileInformationLevel returns correct value")
    void testGetFileInformationLevel() {