assertTrue(region.hasAccess(RdmaAccess.LOCAL_READ), "Should have local read access");
        assertTrue(region.hasAccess(RdmaAccess.LOCAL_WRITE), "Should have local write access");
        assertFalse(region.hasAccess(RdmaAccess.REMOTE_READ), "Should not have remote read access");

        // Test cleanup
        region.close();

        assertTrue(region.getSize() >= 1024, "Region should be at least requested size");
        assertTrue(region.hasAccess(RdmaAccess.LOCAL_READ), "Should have local read access");
        assertTrue(region.hasAccess(RdmaAccess.REMOTE_READ), "Should have remote read access");

        // Verify provider was called
        verify(mockProvider, atLeastOnce()).registerMemory(any(ByteBuffer.class), any());
    }

        return buffer.limit();
    }

    /**
     * Check if region has specific access permission
     *
     * @param access access permission to check
     * @return true if access is allowed, false otherwise
     */
    public boolean hasAccess(RdmaAccess access) {
        return accessFlags.contains(access);
    }

    /**
     * Check if memory region is still valid
     *

            assertTrue(maxAccess != 0, "Maximum access mask should not be zero");
            assertTrue((maxAccess & ACE.GENERIC_ALL) != 0, "Maximum access should include GENERIC_ALL");

            // Test minimum access (no permissions)
            int noAccess = 0;
            assertEquals(0, noAccess, "No access should be zero");
            assertFalse((noAccess & ACE.FILE_READ_DATA) != 0, "No access should not include FILE_READ_DATA");
        }

    public int getRemoteKey() { return remoteKey; }
    public long getAddress() { return address; }
    public int getSize() { return buffer.remaining(); }
    
    public boolean hasAccess(RdmaAccess access) {
        return accessFlags.contains(access);
    }
    
    /**
     * Invalidate this memory region
     */
    public abstract void invalidate();
    
    protected abstract int generateLocalKey();

 * mask of the ACE, the whole access check fails. If the ACE is an "allow"
 * ACE and <i>all</i> of the bits in the desired access bits match bits in
 * the access mask of the ACE, the access check is successful. Otherwise,
 * more ACEs are evaluated until all desired access bits (combined)
 * are "allowed". If all of the desired access bits are not "allowed"

 * mask of the ACE, the whole access check fails. If the ACE is an "allow"
 * ACE and <i>all</i> of the bits in the desired access bits match bits in
 * the access mask of the ACE, the access check is successful. Otherwise,
 * more ACEs are evaluated until all desired access bits (combined)
 * are "allowed". If all of the desired access bits are not "allowed"

        smbComOpenAndX = new SmbComOpenAndX(fileName, access, flags, andx);
        assertEquals(0x10, smbComOpenAndX.openFunction); // OPEN_FN_CREATE | OPEN_FN_FAIL_IF_EXISTS
    }

    /**
     * Test constructor with O_CREAT flag.
     */
    @Test
    void testConstructor_CreateAndOpen() {
        int flags = SmbFile.O_CREAT;
        smbComOpenAndX = new SmbComOpenAndX(fileName, access, flags, andx);

        closeHandleCaptor = ArgumentCaptor.forClass(MsrpcSamrCloseHandle.class);
    }

    @Test
    void constructor_shouldOpenDomainSuccessfully() throws IOException {
        // Arrange
        int access = 0x01; // Example access value
        // Simulate successful RPC call
        doAnswer(invocation -> {
            MsrpcSamrOpenDomain rpc = invocation.getArgument(0);
            rpc.retval = 0; // Success
            return null;

    }

    /**
     * Stores an access result in the OpenSearch index.
     *
     * @param accessResult The access result to store.
     */
    @Override
    public void store(final OpenSearchAccessResult accessResult) {
        super.insert(accessResult, accessResult.getId() == null ? OpType.CREATE : OpType.INDEX);
    }

    /**
     * Updates an access result in the OpenSearch index.
     *