pool.contains(null); // Should be fast without global sync
        }

        // 2. Buffer Cache Test
        for (int i = 0; i < 100; i++) {
            byte[] buf = BufferCache.getBuffer();
            BufferCache.releaseBuffer(buf);
        }

        // 3. Atomic Operations Test
        AtomicLong counter = new AtomicLong(0);
        for (int i = 0; i < 1000; i++) {

    @DisplayName("getBufferCache should return initialized buffer cache")
    void testGetBufferCache() {
        // When
        BufferCache bufferCache = context.getBufferCache();

        // Then
        assertNotNull(bufferCache, "Buffer cache should not be null");
        assertSame(bufferCache, context.getBufferCache(), "Should return same instance on multiple calls");
    }

    @Test

        verify(mockDelegate).getNameServiceClient();
    }

    @Test
    void testGetBufferCache() {
        // Test getBufferCache() method
        BufferCache mockBufferCache = mock(BufferCache.class);
        when(mockDelegate.getBufferCache()).thenReturn(mockBufferCache);
        assertEquals(mockBufferCache, cifsContextWrapper.getBufferCache());
        verify(mockDelegate).getBufferCache();

        boolean isDirect;
        DcerpcException de;

        if (state == 0) {
            bind();
        }

        isDirect = true;

        stub = jcifs.smb1.smb1.BufferCache.getBuffer();
        try {
            int off, tot, n;

            buf = new NdrBuffer(stub, 0);

            msg.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
            msg.call_id = call_id++;

                        } finally {
                            response_map.remove(req);
                        }
                    }
                } finally {
                    BufferCache.releaseBuffer(req.txn_buf);
                    BufferCache.releaseBuffer(resp.txn_buf);
                }

            } else {
                response.command = request.command;

import org.junit.jupiter.api.Nested;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.BufferCache;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.SmbPipeHandle;
import jcifs.SmbPipeResource;
import jcifs.SmbResourceLocator;
import jcifs.smb.SmbNamedPipe;

import org.junit.jupiter.params.provider.CsvSource;
import org.junit.jupiter.params.provider.ValueSource;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.BufferCache;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.dcerpc.ndr.NdrBuffer;
import jcifs.dcerpc.ndr.NdrException;

/**
 * Comprehensive test suite for DcerpcHandle class