assertFalse(region.hasAccess(RdmaAccess.REMOTE_READ), "Should not have remote read access");

        // Test cleanup
        region.close();
        assertFalse(region.isValid(), "Region should be invalid after close");
    }

    @Test
    public void testGetProviderName() {
        assertEquals("TCP Fallback", provider.getProviderName());
    }

    @Test

        }

        @Test
        @DisplayName("Should throw exception for invalid structure size")
        void testReadBytesWireFormatInvalidSize() throws Exception {
            // Given - Invalid structure size
            byte[] buffer = new byte[16];
            buffer[0] = 0x0F; // Invalid size (15 instead of 16)
            buffer[1] = 0x00;

        when(fh.acquire()).thenReturn(fh);
        when(fh.isValid()).thenReturn(true, false); // first true, then false

        handle.ensureOpen();
        assertTrue(handle.isOpen());

        // Simulate invalidation
        assertFalse(handle.isOpen(), "Becomes not open when underlying handle invalid");

        // After close, report stale
        handle.close();

    }

    @Test
    @DisplayName("Test isValid returns false for invalid negotiation")
    void testIsValidReturnsFalse() {
        // Arrange
        when(negotiationResponse.isValid(cifsContext, negotiationRequest)).thenReturn(false);

        // Act
        boolean result = negotiationResponse.isValid(cifsContext, negotiationRequest);

        // Assert

        case FILE -> ComponentUtil.getProtocolHelper().getFileProtocols();
        default -> throw new ConstraintDefinitionException("protocolType is empty or invalid: " + uriType.protocolType());
        };
    }

    @Override
    public boolean isValid(final String value, final ConstraintValidatorContext context) {
        if (StringUtil.isNotBlank(value)) {
            return check(protocols, value);
        }

     * @param in the input stream to validate
     * @return true if the stream contains valid sitemap data, false otherwise
     */
    public boolean isValid(final InputStream in) {
        return isValid(in, true);
    }

    /**
     * Checks if the given input stream contains valid sitemap data.
     * @param in the input stream to validate

            throw new SMBProtocolDecodingException("Invalid maxTransactSize: " + this.maxTransactSize + " (must be 0-16777216)");
        }
        if (this.maxReadSize < 0 || this.maxReadSize > 16777216) { // 16MB max
            throw new SMBProtocolDecodingException("Invalid maxReadSize: " + this.maxReadSize + " (must be 0-16777216)");
        }

        // When
        boolean valid = response.isValid(mockContext, mockRequest);

        // Then
        assertTrue(valid);
        assertEquals(DialectVersion.SMB311, response.getSelectedDialect());
    }

    @Test
    @DisplayName("Should fail validation when not received")
    void testIsValidNotReceived() {
        // When
        boolean valid = response.isValid(mockContext, mockRequest);

        // Then

        props.setProperty("jcifs.smb.client.useRDMA", "invalid");
        props.setProperty("jcifs.smb.client.rdmaReadWriteThreshold", "invalid");
        props.setProperty("jcifs.smb.client.rdmaMaxSendSize", "invalid");
        props.setProperty("jcifs.smb.client.rdmaMaxReceiveSize", "invalid");
        props.setProperty("jcifs.smb.client.rdmaCredits", "invalid");

        PropertyConfiguration config = new PropertyConfiguration(props);

    int NT_STATUS_NOT_IMPLEMENTED = 0xC0000002;
    /** The specified information class is invalid */
    int NT_STATUS_INVALID_INFO_CLASS = 0xC0000003;
    /** Invalid access to memory location */
    int NT_STATUS_ACCESS_VIOLATION = 0xC0000005;
    /** The handle is invalid */
    int NT_STATUS_INVALID_HANDLE = 0xC0000008;
    /** The parameter is incorrect */