}

    // Happy path: overlaps delegates to implementation and returns as stubbed
    @Test
    @DisplayName("overlaps returns true then false as stubbed")
    void overlapsReturnsTrueThenFalse() throws Exception {
        when(locator.overlaps(other)).thenReturn(true, false);

        assertTrue(locator.overlaps(other));
        assertFalse(locator.overlaps(other));

    /**
     * Determines whether this resource path overlaps with another resource path by sharing a common root.
     *
     * @param other the other resource locator to compare with
     * @return whether the paths share a common root
     * @throws CIFSException if an error occurs during comparison
     */
    boolean overlaps(SmbResourceLocator other) throws CIFSException;

    /**

        SmbResourceLocatorImpl child = locator("smb://server/share/dir/file");
        assertTrue(base.overlaps(child));

        SmbResourceLocatorImpl other = locator("smb://server/share/other");
        assertFalse(base.overlaps(other));
    }

    @Test
    @DisplayName("isRoot and isRootOrShare reflect path state")
    void testIsRootAndShare() {

    }

    /**
     *
     * {@inheritDoc}
     *
     * @see jcifs.smb.SmbResourceLocatorInternal#overlaps(jcifs.SmbResourceLocator)
     */
    @Override
    public boolean overlaps(final SmbResourceLocator other) throws CIFSException {
        final String tp = getCanonicalURL();
        final String op = other.getCanonicalURL();

             * It is invalid for the source path to be a child of the destination
             * path or visa versa.
             */
            if (this.fileLocator.overlaps(dest.getLocator())) {
                throw new SmbException("Source and destination paths overlap.");
            }

            final WriterThread w = new WriterThread();
            w.setDaemon(true);

            try {
                w.start();

        byte[] viaHash = NtlmUtil.nTOWFv2(domain, user, NtlmUtil.getNTHash(password));
        byte[] viaPassword = NtlmUtil.nTOWFv2(domain, user, password);

        // Assert: overloads consistent
        assertArrayEquals(viaHash, viaPassword, "Both overloads must compute same NTLMv2 key");

        // Changing domain should change the key (domain is part of MAC input)
        byte[] differentDomain = NtlmUtil.nTOWFv2("DOMAIN", user, password);

            // Check that no two flags overlap (except combined flags)
            for (int i = 0; i < flags.length; i++) {
                for (int j = i + 1; j < flags.length; j++) {
                    assertEquals(0, flags[i] & flags[j], String.format("Flags at index %d and %d should not overlap", i, j));
                }
            }
        }
    }

    @Nested

            assertEquals(0x0002, Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED, "Signing required flag must be 0x0002");
        }

        @Test
        @DisplayName("Signing flags should not overlap")
        void testSigningFlagsNoOverlap() {
            assertNotEquals(Smb2Constants.SMB2_NEGOTIATE_SIGNING_ENABLED, Smb2Constants.SMB2_NEGOTIATE_SIGNING_REQUIRED,
                    "Signing flags must be distinct");

                assertNotEquals(attributes[i], attributes[j], "Attributes should have distinct values");
                assertEquals(0, attributes[i] & attributes[j], "Attributes should not overlap in bit patterns");
            }
        }
    }

    @Test
    @DisplayName("Should have resource types with power-of-2 values")
    void testResourceTypeBitPatterns() {

            byte[] outputBytes, int ioctlFlags) {
        final int headerLen = 64; // SMB2 header is 64 bytes
        final int bodyFixed = 48; // body size minus 1 for structure size field overlap
        final int payloadStart = headerLen + bodyFixed;
        final int bodyLen = bodyFixed + inputCount + outputCount;

        byte[] buf = new byte[bodyLen];
        int pos = 0;