"Default message should match the class contract");
        assertNull(ex.getCause(), "No cause expected from default constructor");
        assertTrue(ex instanceof SmbException, "Should be an SmbException");

        // toString should include the class name and the message
        String ts = ex.toString();
        assertTrue(ts.contains("SmbUnsupportedOperationException"), "toString should contain class name");

     *
     * @return the transport for this session
     */
    SmbTransport getTransport();

    /**
     * Connect to the logon share
     *
     * @throws SmbException if the connection fails
     */
    void treeConnectLogon() throws SmbException;

    /**
     * Gets or creates an SMB tree connection for the specified share and service.
     *
     * @param share the share name to connect to

        when(config.getTransactionBufferSize()).thenReturn(65535);
        when(tree.send(any(Smb2IoctlRequest.class), eq(RequestParam.NO_RETRY))).thenThrow(new SmbException("boom"));

        IOException ex = assertThrows(IOException.class, stream::available, "Should convert SmbException to IOException");
        assertTrue(ex.getMessage().contains("boom"));
    }

    @Test
    @DisplayName("ensureTreeConnected delegates to handle")

import java.io.IOException;

import jcifs.smb1.dcerpc.DcerpcError;
import jcifs.smb1.dcerpc.DcerpcException;
import jcifs.smb1.dcerpc.DcerpcHandle;
import jcifs.smb1.dcerpc.rpc;
import jcifs.smb1.smb1.SmbException;

/**
 * Handle for Security Account Manager (SAM) policy operations.
 * This class represents an open handle to a SAM server and provides
 * high-level access to SAM database operations.
 */

     * @param auth
     *            The NTLM password authenticator containing user credentials
     * @throws SmbException
     *             If there is an error setting up the signing digest
     */
    public SMB1SigningDigest(final SmbTransportInternal transport, final NtlmPasswordAuthenticator auth) throws SmbException {
        this.digest = Crypto.getMD5();
        try {

        when(handle.isValid()).thenReturn(false);
        SmbWatchHandleImpl sut = new SmbWatchHandleImpl(handle, 0, false);

        SmbException ex = assertThrows(SmbException.class, sut::watch, "Expected SmbException when handle invalid");
        assertTrue(ex.getMessage().contains("Watch was broken by tree disconnect"));
    }

        doReturn(mockTransport).when(poolSpy).getSmbTransport(eq(ctx), any(Address.class), anyInt(), eq(false), anyBoolean());

        // When/Then: Should throw SmbException
        SmbException ex = assertThrows(SmbException.class, () -> poolSpy.getChallenge(ctx, address));
        assertTrue(ex.getMessage().contains("Connection failed"));
    }

    @Test
    @DisplayName("Should perform logon to IPC$ share")

 *
 * @author mbechler
 */
public class SmbPipeInputStream extends SmbFileInputStream {

    private final SmbPipeHandleImpl handle;

    /**
     * @param handle
     * @param th
     * @throws SmbException
     */
    SmbPipeInputStream(final SmbPipeHandleImpl handle, final SmbTreeHandleImpl th) throws CIFSException {
        super(handle.getPipe(), th, null);
        this.handle = handle;
    }

    /**

import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;

import jcifs.smb.SID;
import jcifs.smb.SmbException;

/**
 * Test class for ACE (Access Control Entry)
 */
class ACETest {

    private ACE ace;
    private byte[] testBuffer;

    @BeforeEach
    void setUp() {
        ace = new ACE();
    }

    }

    private long extractNtStatus(Throwable cause) {
        if (cause instanceof SmbException) {
            return ((SmbException) cause).getNtStatus();
        }
        return 0;
    }

    private String extractServerMessage(Throwable cause) {
        if (cause instanceof SmbException) {
            // Try to get server message from SMB exception
            return cause.getMessage();
        }