// Act
        boolean result = filter.accept(smbFile);

        // Assert
        assertTrue(result, "Directory should be accepted");
        verify(smbFile, times(1)).isDirectory();
        verify(smbFile, never()).getName();
        verifyNoMoreInteractions(smbFile);
    }

    @Test
    @DisplayName("accept: returns false for non-directories")

        // Call the decode method with the mocked NdrBuffer
        ndrHyper.decode(mockNdrBuffer);

        // Verify that dec_ndr_hyper was called exactly once
        verify(mockNdrBuffer, times(1)).dec_ndr_hyper();
        verifyNoMoreInteractions(mockNdrBuffer);

        // Verify that the NdrHyper object's value was updated correctly

        System.arraycopy(testData, 0, buffer, bufferIndex + 16, testData.length);

        // Decode
        int bytesDecoded = response.decode(buffer, bufferIndex, buffer.length);

        // Verify results
        assertEquals(namedPipeState, response.getNamedPipeState());
        assertEquals(readDataAvailable, response.getReadDataAvailable());
        assertEquals(numberOfMessages, response.getNumberOfMessages());

            assertEquals(0x01, SMBUtil.readInt4(buffer, headerStart + 44)); // Write flags

            // Verify data offset is written correctly
            int dataOffsetValue = SMBUtil.readInt2(buffer, headerStart + 2);
            assertEquals(headerStart - 0 + 48, dataOffsetValue); // Assuming getHeaderStart() returns 0

            // Verify data is copied

        }
        baos.write(checksum);
        byte[] data = baos.toByteArray();

        // Create PacSignature
        PacSignature pacSignature = new PacSignature(data);

        // Verify
        assertEquals(PacSignature.KERB_CHECKSUM_HMAC_MD5, pacSignature.getType());
        assertArrayEquals(checksum, pacSignature.getChecksum());
    }

    /**
     * Test constructor with HMAC_SHA1_96_AES128 type.

import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.doThrow;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Nested;

        // Verify lengths
        assertEquals(2, setupWritten);
        assertEquals(6, paramWritten);
        assertEquals(56, dataWritten); // 50 + 6 padding

        // Verify setup content
        assertEquals(SmbComTransaction.TRANS2_SET_FILE_INFORMATION, setupBuffer[0]);
        assertEquals(0x00, setupBuffer[1]);

        // Verify parameter content

        // When
        encryptionContext.secureWipeKeys();

        // Then - Verify keys are wiped (we can't directly access private fields,
        // but we can verify the context behaves correctly after wiping)
        // After wiping, operations that require keys should fail

        // Then
        assertNotNull(client, "Client should be created successfully");
        verify(mockContext, atLeastOnce()).getConfig();
    }

    @Test
    @DisplayName("Should handle invalid NetBIOS name quickly")
    @Timeout(value = 1, unit = TimeUnit.SECONDS) // Very short timeout
    void testGetNbtByNameInvalid() {
        // When/Then - Should fail quickly with invalid characters

    }

    /**
     * Verify that root causes are stored and returned correctly.
     */
    @Test
    @DisplayName("Root cause propagation")
    void testRootCausePropagation() {
        Throwable root = mock(Throwable.class);
        SmbException ex = new SmbException(0, root);
        assertSame(root, ex.getRootCause());
    }

    /**