// Test setting timestamp 1 hour ago
        long testTime = System.currentTimeMillis() - 3600000;
        file.setLastModified(testTime);

        long retrievedTime = file.lastModified();
        // Allow for reasonable precision differences
        assertTrue(Math.abs(retrievedTime - testTime) < 10000, "Set timestamp should be approximately correct");
    }

            throw new CIFSException("Invalid URL " + url, e);
        }
    }

    /**
     *
     * {@inheritDoc}
     *
     * @see jcifs.CIFSContext#getPipe(java.lang.String, int)
     */
    @Override
    public SmbPipeResource getPipe(final String url, final int pipeType) throws CIFSException {
        try {
            return new SmbNamedPipe(url, pipeType, this);
        } catch (final MalformedURLException e) {

    /**
     * @param handle
     * @throws SmbException
     */
    SmbPipeOutputStream(final SmbPipeHandleImpl handle, final SmbTreeHandleImpl th) throws CIFSException {
        super(handle.getPipe(), th, null, 0, 0, 0);
        this.handle = handle;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SmbFileOutputStream#isOpen()
     */
    @Override
    public boolean isOpen() {

        tree.connectionState = 2; // Connected state
        tree.tid = 123;

        // Create real request and response objects since they're not interfaces
        ServerMessageBlock request = new SmbComOpenAndX("testfile.txt", 0x01, 0, null);
        ServerMessageBlock response = new SmbComOpenAndXResponse();

        // Execute send
        tree.send(request, response);

        // Verify session.send was called and tid was set

            throw new CIFSException("Invalid URL " + url, e);
        }
    }

    /**
     *
     * {@inheritDoc}
     *
     * @see jcifs.CIFSContext#getPipe(java.lang.String, int)
     */
    @Override
    public SmbPipeResource getPipe(final String url, final int pipeType) throws CIFSException {
        try {
            return new SmbNamedPipe(url, pipeType, this);
        } catch (final MalformedURLException e) {

        assertThrows(NullPointerException.class, () -> target.unwrap(null));
    }

    @Test
    @DisplayName("getPipe, getPipeType, getUncPath delegate to underlying pipe")
    void testBasicAccessors() {
        when(pipe.getPipeType()).thenReturn(0x123456);
        assertSame(pipe, target.getPipe());
        assertEquals(0x123456, target.getPipeType());
        assertEquals("\\\\pipe\\\\my-pipe", target.getUncPath());
    }

    private static class TestServerMessageBlock2Request extends ServerMessageBlock2Request<TestServerMessageBlock2Response> {
        private TestServerMessageBlock2Response testResponse;
        private int testSize = 64;
        private int testEncodedLength = 64;

        public TestServerMessageBlock2Request(Configuration config) {
            super(config);
        }

        assertEquals(testState, leaseContext.getLeaseState());
        assertEquals(0, leaseContext.getLeaseFlags());
    }

    @Test
    @DisplayName("Should calculate correct size")
    void testSize() {
        int expectedSize = 16 + 4 + 4 + 32; // header + name + padding + data
        assertEquals(expectedSize, leaseContext.size());
    }

    @Test
    @DisplayName("Should set and get lease key")

        // Act
        SmbPipeHandle handle = pipe.openPipe();

        // Assert: observable handle behavior without network I/O
        assertNotNull(handle, "Handle must not be null");
        assertSame(pipe, handle.getPipe(), "Handle should reference originating pipe");
        assertSame(handle, handle.unwrap(SmbPipeHandle.class), "unwrap should return same instance for interface type");
    }

    @ParameterizedTest

        byte[] buffer = createValidNotificationBuffer("testfile.txt", FileNotifyInformation.FILE_ACTION_ADDED);

        FileNotifyInformationImpl info = new FileNotifyInformationImpl(buffer, 0, buffer.length);

        assertNotNull(info);
        assertEquals(FileNotifyInformation.FILE_ACTION_ADDED, info.getAction());
        assertEquals("testfile.txt", info.getFileName());
    }

    @Test