import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

/**
 * Comprehensive test suite for SmbTransportPool interface.
 * Tests all transport pool operations including connection management,
 * authentication, and lifecycle operations.
 */
@ExtendWith(MockitoExtension.class)
@DisplayName("SmbTransportPool Tests")
class SmbTransportPoolTest {

    @Mock

import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Echo response message.
 *
 * This response confirms that the server is still active
 * and the connection is working properly.
 *
 * @author mbechler
 */
public class Smb2EchoResponse extends ServerMessageBlock2Response {

    /**
     * Constructs an SMB2 echo response
     * @param config the client configuration

        // Mock transport.connect() to succeed
        doNothing().when(transport).connect();

        // Simulate failed tree connect
        doThrow(new SmbException("Connection failed")).when(session).send(any(ServerMessageBlock.class), any(ServerMessageBlock.class));

        assertThrows(SmbException.class, () -> tree.treeConnect(null, null));

                    continue;
                }
            } catch (final SmbAuthException sae) {
                log.warn("Auth failed", sae);
            } catch (final SmbException se) {
                log.warn("Connection failed", se);
                if (se.getNtStatus() != NtStatus.NT_STATUS_UNSUCCESSFUL) {
                    throw se;
                }
            }
            if (dirents[i].isDirectory()) {

    int RPC_PT_CANCEL = 0x12;
    /**
     * Acknowledgment packet type
     */
    int RPC_PT_ACK = 0x13;
    /**
     * Reject packet type
     */
    int RPC_PT_REJECT = 0x14;
    /**
     * Connection-oriented cancel packet type
     */
    int RPC_PT_CO_CANCEL = 0x15;
    /**
     * Orphaned packet type
     */
    int RPC_PT_ORPHANED = 0x16;

    // RPC_C_PF_ flags (packet flags)
    /**

    /**
     * Named pipe status indicating the pipe is listening for connections.
     */
    public static final int STATUS_LISTENING = 2;

    /**
     * Named pipe status indicating the connection is established and operational.
     */
    public static final int STATUS_CONNECTION_OK = 3;

    /**
     * Named pipe status indicating the server end of the pipe is closed.
     */

 */

package jcifs.smb1.dcerpc;

import jcifs.smb1.dcerpc.ndr.NdrBuffer;
import jcifs.smb1.dcerpc.ndr.NdrException;

/**
 * DCERPC Bind message for establishing a connection context.
 * This class handles the binding of DCERPC interfaces for RPC communication.
 */
public class DcerpcBind extends DcerpcMessage {

            // Log circuit breaker rejection
            auditLogger.logSecurityViolation("Circuit breaker open for SMB connection",
                    java.util.Map.of("address", address.getHostAddress(), "port", String.valueOf(port)));
            throw new IOException("Connection rejected by circuit breaker: " + e.getMessage(), e);
        } catch (RuntimeException e) {
            // Unwrap IOException from RuntimeException

import jcifs.CIFSContext;
import jcifs.Configuration;
import jcifs.internal.util.SMBUtil;

/**
 * SMB2 Echo request message.
 *
 * This command is used to test connectivity and ensure the
 * SMB2 connection is still active.
 *
 * @author mbechler
 */
public class Smb2EchoRequest extends ServerMessageBlock2Request<Smb2EchoResponse> {

    /**
     * Constructs an SMB2 echo request

    int DEFAULT_RCV_BUF_SIZE = 60416;
    /** Default send buffer size in bytes */
    int DEFAULT_SND_BUF_SIZE = 16644;
    /** Default session limit */
    int DEFAULT_SSN_LIMIT = 250;
    /** Default connection timeout in milliseconds */
    int DEFAULT_CONN_TIMEOUT = 35000;

    /** Local address to bind to */
    InetAddress LADDR = Config.getLocalHost();
    /** Local port to bind to */