import java.nio.charset.StandardCharsets;

import jcifs.Encodable;
import jcifs.internal.util.SMBUtil;

/**
 * DFS (Distributed File System) referral request buffer encoder.
 * Creates encoded request buffers for DFS referral requests, specifying the maximum
 * referral level and target path for which DFS resolution is requested.
 *
 * @author mbechler
 */
public class DfsReferralRequestBuffer implements Encodable {

     */
    DfsReferralData resolve(CIFSContext tf, String domain, String root, String path) throws CIFSException;

    /**
     * Add a referral to the cache
     *
     * @param path the DFS path for this referral
     * @param dr the DFS referral data to cache
     * @param tc the CIFS context containing configuration
     */
    void cache(CIFSContext tc, String path, DfsReferralData dr);

    private DfsReferralRequestBuffer buffer;

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create buffer with simple path and referral level")
        void testConstructorWithSimplePath() {
            String path = "\\\\server\\share";
            int maxReferralLevel = 3;

            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

    @Mock
    private jcifs.CIFSContext ctx;

    @Mock
    private SmbSession session;

    @Mock
    private jcifs.DfsReferralData referral;

    @BeforeEach
    void resetMocks() {
        Mockito.reset(transport, ctx, session, referral);
    }

    // Happy path: hasCapability returns based on provided capability codes
    @ParameterizedTest

    }

    @Test
    @DisplayName("Test DFS referral data")
    void testDfsReferralData() throws Exception {
        String url = "smb://server/share/path/";
        DummySmbResourceLocator loc = new DummySmbResourceLocator(url);

        // Initially no DFS referral
        assertNull(loc.getDfsReferral());

        // Set and retrieve DFS referral
        loc.setDfsReferral(dfs);

        byte subCmd = (byte) getPrivateField(cmd, "subCommand");
        assertEquals(subCmd, buf[0]);
        assertEquals((byte) 0x00, buf[1]);
    }

    @Test
    @DisplayName("writeParametersWireFormat writes referral level and path")
    void testWriteParams() throws Exception {
        Trans2GetDfsReferral cmd = new Trans2GetDfsReferral("abc");
        setPrivateField(cmd, "maxReferralLevel", 0x12AB);
        byte[] buffer = new byte[100];

        }
    }

    @Nested
    @DisplayName("Combine Tests")
    class CombineTests {

        @Test
        @DisplayName("Should combine two referral data objects")
        void testCombine() {
            // Setup first referral
            DfsReferralDataImpl first = new DfsReferralDataImpl();
            when(mockReferral.getTtl()).thenReturn(300);
            when(mockReferral.getRFlags()).thenReturn(0);

     *         itself.
     */

    String getName();

    /**
     * Returns the DFS referral data associated with this resource if it has been resolved through DFS.
     *
     * @return dfs referral data
     */
    DfsReferralData getDfsReferral();

    /**
     * Everything but the last component of the URL representing this SMB

     * @throws CIFSException if an error occurs during comparison
     */
    boolean overlaps(SmbResourceLocator other) throws CIFSException;

    /**
     * Internal: for testing only
     *
     * @param dr the DFS referral data to process
     * @param reqPath the requested path to resolve
     * @return resolved unc path
     */
    String handleDFSReferral(DfsReferralData dr, String reqPath);

        // Then
        assertEquals(expiration, result);
        verify(mockReferralData).getExpiration();
    }

    @Test
    @DisplayName("Should get next referral")
    void testNext() {
        // Given
        DfsReferralData nextReferral = mock(DfsReferralData.class);
        when(mockReferralData.next()).thenReturn(nextReferral);

        // When