@Test
        @DisplayName("Should handle empty buffer encoding")
        void testEmptyBufferEncoding() {
            byte[] buffer = new byte[256];
            testMessage.setBytesWritten(0);
            int len = testMessage.encode(buffer, 0);
            assertTrue(len >= Smb2Constants.SMB2_HEADER_LENGTH);
        }

        @Test
        @DisplayName("Should handle large MID values")

            assertEquals(2048L * 4 * 4096, fileFsSizeInfo.getCapacity());
            assertEquals(1024L * 4 * 4096, fileFsSizeInfo.getFree());
        }

        @Test
        @DisplayName("Should handle negative values in buffer")
        void shouldHandleNegativeValuesInBuffer() throws SMBProtocolDecodingException {
            // Given - negative values (treated as unsigned in protocol)

    }

    @Test
    @DisplayName("close(): clears cache and closes handle; does not close shared SmbFile")
    void close_sharedFile_closesHandle_only() throws Exception {
        SmbRandomAccessFile raf = newInstance("rw", false, true, false);
        SmbFile file = (SmbFile) getField(raf, "file");
        SmbFileHandleImpl handle = (SmbFileHandleImpl) getField(raf, "handle");

        // Act
        raf.close();

        assertEquals("FFFE80", Hexdump.toHexString(data2, 0, 6)); // 6 chars = 3 bytes
        assertEquals("FFFE807F", Hexdump.toHexString(data2, 0, 8)); // 8 chars = 4 bytes

        // Test odd size (should handle correctly)
        byte[] data3 = { 0x0A, 0x0B, 0x0C };
        assertEquals("0", Hexdump.toHexString(data3, 0, 1)); // 1 char = 0.5 bytes (rounds up to 1)

        // Next call should handle CIFSException and close iterator
        assertFalse(it.hasNext()); // After error, hasNext should return false

        // Assert
        verify(tree, times(1)).release();
    }

    @Test
    @DisplayName("close() closes when there is a next element and releases handle")
    void explicitClose() throws Exception {
        // Arrange

    }

    @Test
    void testConstructorWithSmbFileOnly() throws IOException, CIFSException {
        // Given
        // Mock the AutoCloseable tree handle behavior
        SmbTreeHandleImpl autoCloseableMockTreeHandle = mock(SmbTreeHandleImpl.class);
        when(mockFile.ensureTreeConnected()).thenReturn(autoCloseableMockTreeHandle);

    }

    @ParameterizedTest
    @ValueSource(strings = { "", "a", "short", "medium length text", "very long text that exceeds typical block sizes" })
    @DisplayName("Should handle various input sizes for hashing")
    void testHashVariousInputSizes(String input) {
        // Given
        byte[] data = input.getBytes();

        // When
        MessageDigest md4 = Crypto.getMD4();

 * Lesser General Public License for more details.
 */
package jcifs.internal.smb2.persistent;

/**
 * Constants for SMB2/3 durable and persistent handle capabilities.
 */
public final class Smb2HandleCapabilities {

    /**
     * Flag indicating persistent handle capability
     */
    public static final int SMB2_DHANDLE_FLAG_PERSISTENT = 0x00000002;

    /**
     * Default timeout for durable handles (2 minutes)

        System.arraycopy(buffer, bodyOffset + 8, actualPath, 0, pathBytes.length);
        assertArrayEquals(pathBytes, actualPath);
    }

    @Test
    @DisplayName("Should handle chain operation correctly")
    void testChain() {
        // Given
        ServerMessageBlock2 nextMessage = mock(ServerMessageBlock2.class);

        // When
        boolean result = request.chain(nextMessage);

        leaseManager.updateLease(key, grantedState);

        LeaseEntry entry = leaseManager.getLease(key);
        assertEquals(grantedState, entry.getLeaseState());
    }

    @Test
    @DisplayName("Should handle lease break")
    void testHandleLeaseBreak() {
        String path = "/share/file.txt";
        int initialState = Smb2LeaseState.SMB2_LEASE_FULL;
        int newState = Smb2LeaseState.SMB2_LEASE_READ_CACHING;