// Then
        assertNotNull(signingKey, "Should handle empty session key");
        assertEquals(16, signingKey.length, "Should still produce 16-byte key");
    }

    @Test
    @DisplayName("Should handle null preauth integrity for SMB 3.0.0")
    void testDeriveKeys_NullPreauthForSMB300() {
        // Given

    protected DcerpcSecurityProvider securityProvider = null;
    private static int call_id = 1;

    /**
     * Gets a DCERPC handle for the specified URL and authentication
     * @param url the DCERPC URL to connect to
     * @param auth the NTLM authentication credentials
     * @return a DCERPC handle for the connection
     * @throws UnknownHostException if the host cannot be resolved

    }

    @Test
    @DisplayName("getUrlHandler should return initialized URL handler")
    void testGetUrlHandler() {
        // When
        URLStreamHandler urlHandler = context.getUrlHandler();

        // Then
        assertNotNull(urlHandler, "URL handler should not be null");
        assertSame(urlHandler, context.getUrlHandler(), "Should return same instance on multiple calls");

    }

    @Test
    @DisplayName("Should handle null file ID")
    void testSetNullFileId() {
        // Given
        RequestWithFileId request = new Smb2CloseRequest(mockConfig, testFileId);

        // When & Then - should handle null gracefully (implementation dependent)
        assertDoesNotThrow(() -> request.setFileId(null), "Should handle null file ID without throwing exception");
    }

    @Test

	[op(0x01)]
	int SamrCloseHandle([in] policy_handle *handle);

	[op(0x39)]
	int SamrConnect2([in,string,unique] wchar_t *system_name,
			[in] uint32_t access_mask,
			[out] policy_handle *handle);

	[op(0x3e)]
	int SamrConnect4([in,string,unique] wchar_t *system_name,
			[in] uint32_t unknown,
			[in] uint32_t access_mask,
			[out] policy_handle *handle);

	[op(0x07)]
	int SamrOpenDomain([in] policy_handle *handle,

import jcifs.internal.smb2.create.CreateContextRequest;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Durable Handle Request Create Context (DHnQ)
 *
 * MS-SMB2 Section 2.2.13.2.3
 */
public class DurableHandleRequest implements CreateContextRequest {

    /**
     * Context name for durable handle request
     */
    public static final String CONTEXT_NAME = "DHnQ";

/**
 * Microsoft RPC SAM close handle request.
 * This class implements the SAMR close handle operation.
 *
 * @author mbechler
 */
public class MsrpcSamrCloseHandle extends samr.SamrCloseHandle {

    /**
     * Creates a new request to close a SAM handle.
     *
     * @param handle the policy handle to close
     */
    public MsrpcSamrCloseHandle(final policy_handle handle) {
        super(handle);

        @Test
        @DisplayName("Should handle zero values")
        void shouldHandleZeroValues() {
            // Given
            TestAllocInfo allocInfo = new TestAllocInfo(0L, 0L);

            // When & Then
            assertEquals(0L, allocInfo.getCapacity());
            assertEquals(0L, allocInfo.getFree());
        }

        @Test
        @DisplayName("Should handle maximum long values")

        try {
            // Create RPC handle to witness service
            this.handle = DcerpcHandle.getHandle(
                "ncacn_ip_tcp:" + serverAddress.getHostAddress() + "[135]",
                WITNESS_INTERFACE_UUID,
                WITNESS_INTERFACE_VERSION,
                context
            );
            
            // Bind to witness interface
            handle.bind();
            

        }
    }

    // Simple collaborator to demonstrate interaction verification with Mockito
    interface Handler {
        void handle(int code, String message);
    }

    @Mock
    Handler handler;

    @Test
    @DisplayName("Interaction: handler called with each code/message pair")
    void interaction_with_mock_handler_is_as_expected() {