// negative size -> reject
        when(smbFile.length()).thenReturn(-1L);
        assertFalse(filter.accept(smbFile), "Negative size should be rejected");
        verify(smbFile, times(1)).length();

        // zero size -> reject
        reset(smbFile);
        when(smbFile.length()).thenReturn(0L);
        assertFalse(filter.accept(smbFile), "Zero size should be rejected");
        verify(smbFile, times(1)).length();

            "48, 32, true", // DIRECTORY | ARCHIVE vs ARCHIVE
            "21, 5, true", // READONLY | SYSTEM | DIRECTORY vs READONLY | SYSTEM

            // Negative cases (should be rejected)
            "1, 2, false", // READONLY vs HIDDEN
            "2, 1, false", // HIDDEN vs READONLY
            "16, 32, false", // DIRECTORY vs ARCHIVE
            "3, 4, false", // READONLY | HIDDEN vs SYSTEM

        for (int i = 0; i < 8; i++) {
            baos.write((int) ((value >> (i * 8)) & 0xFF));
        }
    }

    @Test
    void testEmptyPac() {
        // Test that PAC with size <= 8 is rejected
        byte[] emptyData = new byte[8];

        PACDecodingException e = assertThrows(PACDecodingException.class, () -> new Pac(emptyData, keys));
        // Any PACDecodingException is acceptable for this test

     */
    public static final int ACCEPT_INCOMPLETE = 1;
    /**
     * Result code indicating authentication was rejected
     */
    public static final int REJECTED = 2;
    /**
     * Result code indicating MIC token is requested
     */
    public static final int REQUEST_MIC = 3;

    private ASN1ObjectIdentifier mechanism;

        SmbFile file = mock(SmbFile.class);
        when(file.getAttributes()).thenReturn(SmbFile.ATTR_HIDDEN);
        assertFalse(filter.accept(file), "Attributes not matching should be rejected");
        verify(file, times(1)).getAttributes();
    }

    @Test
    public void testAcceptIgnoresWildcard() throws Exception {
        // Wildcard shouldn't affect accept logic.

            assertTrue(completeLatch.await(5, TimeUnit.SECONDS), "All tasks should complete");
            executor.shutdown();

            // Some requests should be rejected due to backpressure
            assertTrue(rejectedCount.get() > 0, "Some requests should be rejected by backpressure");
            assertTrue(successCount.get() > 0, "Some requests should succeed");

        verify(resource).close();
    }

    @Test
    @DisplayName("Iterator with rejecting filter - finds next acceptable")
    void iteratorWithRejectingFilter() throws Exception {
        // Setup: first entry rejected, second accepted
        FileEntry entry1 = mock(FileEntry.class);
        FileEntry entry2 = mock(FileEntry.class);

        when(delegate.hasNext()).thenReturn(true, true, false);

        assertTrue(result, "Filter should accept any provided name");
        verifyNoInteractions(mockDir);
    }

    /**
     * Happy-path: a filter that rejects any name.
     */
    @ParameterizedTest
    @DisplayName("rejects every provided name")
    @ValueSource(strings = { "file.txt", "data.DAT", "a", "", "   " })
    void rejectsAnyNameReturnsFalse(String input) throws Exception {

        assertEquals(SmbComTransaction.TRANSACTION_BUF_SIZE, newBuffer.length, "Buffer should have correct size");
    }

    /**
     * Test that invalid buffer sizes are rejected during release.
     */
    @Test
    public void testInvalidBufferSizeRejection() {
        // Given - Buffers with various invalid sizes
        byte[] tooSmall = new byte[1024];

                // we need to send our final data
                mechMIC = calculateMechListMIC();
            } else if (targ.getResult() == NegTokenTarg.REJECTED) {
                throw new SmbException("SPNEGO mechanism was rejected");
            }
        }

        if (responseToken == null && this.mechContext.isEstablished()) {
            return null;
        }