verify(transport, times(1)).acquire();
    }

    @Test
    @DisplayName("close/release manage usage and transport lifecycle")
    void testReleaseLifecycle() {
        SmbSessionImpl session = newSession();

        // First release drops usage to zero and releases transport
        session.release();
        verify(transport, times(1)).release();
        assertFalse(session.isInUse());

package jcifs.dcerpc;

import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import jcifs.dcerpc.ndr.NdrBuffer;

class DcerpcSecurityProviderTest {

    @Mock

import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.ArgumentMatchers.anyString;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

        h.close(777L);

        // Verify SMB2 close path
        verify(tree, times(1)).send(isA(Smb2CloseRequest.class), eq(RequestParam.NO_RETRY));
        // Tree is always released in finally
        verify(tree, times(1)).release();
    }

    @Test
    @DisplayName("close(long) sends SMB1 close request and releases tree when SMB1")

        // Verify that server-side path engaged at least the initial opens
        verify(src, times(1)).openUnshared(anyInt(), anyInt(), anyInt(), anyInt(), anyInt());
        verify(dest, times(1)).openUnshared(anyInt(), anyInt(), anyInt(), anyInt(), anyInt());
    }

    // --- WriterThread behavior ---

    @Test

        assertTrue(transport.isSMB2());
        assertFalse(transport.isSMB2());
        verify(transport, times(2)).isSMB2();

        doThrow(new SmbException("query failed")).when(transport).isSMB2();
        assertThrows(SmbException.class, () -> transport.isSMB2());
        verify(transport, times(3)).isSMB2();
    }

    // Inflight requests count including edge values
    @ParameterizedTest

        assertTrue(out.length > 0);

        // Verify interactions: flags and an empty optimistic token are used
        verify(this.mechContext, times(1)).getFlags();
        ArgumentCaptor<byte[]> cap = ArgumentCaptor.forClass(byte[].class);
        verify(this.mechContext, times(1)).initSecContext(cap.capture(), eq(0), eq(0));
        assertEquals(0, cap.getValue().length, "Optimistic token must be zero-length");
    }

        assertSame(resource, iterator.next());
        assertFalse(iterator.hasNext());

        // Both resources should be closed
        verify(filter, times(2)).accept(resource);
        verify(resource, times(2)).close();
    }

    @Test
    @DisplayName("Iterator with filter throwing exception")
    void iteratorWithFilterException() throws Exception {

import static org.mockito.Mockito.atLeastOnce;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.util.ArrayList;
import java.util.List;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

        raf.writeFloat(1.0f);
        raf.writeDouble(1.0);

        // Verify length counts - using times() to check exact counts
        verify(raf, times(2)).write(any(byte[].class), anyInt(), eq(2)); // short and char
        verify(raf, times(2)).write(any(byte[].class), anyInt(), eq(4)); // int and float
        verify(raf, times(2)).write(any(byte[].class), anyInt(), eq(8)); // long and double
    }

    @Test