import jcifs.smb.SmbPipeHandleInternal;
import jcifs.util.Encdec;

/**
 * DCE/RPC handle implementation for named pipe communications.
 * This class provides DCE/RPC communication over SMB named pipes.
 */
public class DcerpcPipeHandle extends DcerpcHandle {

    /* This 0x20000 bit is going to get chopped! */
    final static int pipeFlags = 0x2019F << 16 | SmbPipeResource.PIPE_TYPE_RDWR | SmbPipeResource.PIPE_TYPE_DCE_TRANSACT;

import jcifs.smb1.smb1.SmbFileOutputStream;
import jcifs.smb1.smb1.SmbNamedPipe;
import jcifs.smb1.util.Encdec;

/**
 * DCERPC handle implementation using SMB named pipes for transport
 */
public class DcerpcPipeHandle extends DcerpcHandle {

    SmbNamedPipe pipe;
    SmbFileInputStream in = null;
    SmbFileOutputStream out = null;
    boolean isStart = true;

    /**

    }

    /**
     * Helper method to create a DcerpcPipeHandle with injected mocks
     * Uses mock to avoid constructor issues while allowing real method calls
     */
    private DcerpcPipeHandle createMockedDcerpcPipeHandle() throws Exception {
        // Create a mock without calling the constructor
        DcerpcPipeHandle handle = mock(DcerpcPipeHandle.class);

        // Inject the binding using reflection

        if (this instanceof DcerpcPipeHandle) {
            return ((DcerpcPipeHandle) this).pipe.getServer();
        }
        return null;
    }

    /**
     * Gets the principal associated with this handle
     * @return the principal or null if not authenticated
     */
    public Principal getPrincipal() {
        if (this instanceof DcerpcPipeHandle) {

    @Nested
    @DisplayName("Handle Creation Tests")
    class HandleCreationTests {

        @Test
        @DisplayName("Should create DcerpcPipeHandle for ncacn_np protocol")
        void testGetHandleNcacnNpProtocol() {
            // When/Then: Should attempt to create DcerpcPipeHandle (may fail due to SMB URL creation)
            // This tests the protocol recognition logic, actual creation may fail due to missing SMB support

            throws MalformedURLException, DcerpcException {
        if (url.startsWith("ncacn_np:")) {
            return new DcerpcPipeHandle(url, tc, unshared);
        }
        throw new DcerpcException("DCERPC transport not supported: " + url);
    }

    /**
     * Bind the handle
     *
     * @throws DcerpcException