verify(file, times(1)).getAttributes();
    }

    @Test
    public void testAcceptReturnsFalseWhenAttributesDoNotMatch() throws Exception {
        SmbFile file = mock(SmbFile.class);
        when(file.getAttributes()).thenReturn(SmbFile.ATTR_HIDDEN);
        assertFalse(filter.accept(file), "Attributes not matching should be rejected");

        }

        @Test
        @DisplayName("DCERPC_LAST_FRAG should have correct value")
        void testDcerpcLastFrag() {
            assertEquals(0x02, DcerpcConstants.DCERPC_LAST_FRAG, "DCERPC_LAST_FRAG should be 0x02");
        }

        @Test
        @DisplayName("DCERPC_PENDING_CANCEL should have correct value")
        void testDcerpcPendingCancel() {

        // Then
        assertNotNull(nonce1, "First secure nonce should not be null");
        assertNotNull(nonce2, "Second secure nonce should not be null");
        assertFalse(Arrays.equals(nonce1, nonce2), "Secure nonces should be different");
        assertTrue(nonce1.length > 0, "Secure nonce should have proper length");
    }

    @Test
    @DisplayName("Should handle concurrent secure nonce generation safely")

        assertEquals(SERVER, dcerpcBinding.getServer(), "Server should match the constructor argument.");
        assertNull(dcerpcBinding.getOptions(), "Options should be null initially.");
        assertNull(dcerpcBinding.getEndpoint(), "Endpoint should be null initially.");
        assertNull(dcerpcBinding.getUuid(), "UUID should be null initially.");

            assertTrue(completed, "All verify operations should complete");
            assertEquals(threadCount * operationsPerThread, completedVerifies.get(), "All verifies should complete");

            // Performance check - should complete reasonably fast with optimized locking
            long duration = endTime - startTime;
            assertTrue(duration < 5000, "Concurrent verifies should complete within 5 seconds");
        }
    }

        assertTrue(DialectVersion.SMB302.compareTo(DialectVersion.SMB311) < 0);
    }

    @Test
    @DisplayName("Should identify SMB1 vs SMB2+ versions")
    void testSMBVersionIdentification() {
        // SMB1 should not be SMB2
        assertFalse(DialectVersion.SMB1.isSMB2());

        // SMB2+ versions should be identified as SMB2
        assertTrue(DialectVersion.SMB202.isSMB2());
        assertTrue(DialectVersion.SMB210.isSMB2());

        assertFalse(file.exists(), "File should not exist initially");

        file.createNewFile();
        assertTrue(file.exists(), "File should exist after creation");
        assertTrue(file.isFile(), "Should be identified as a file");
        assertFalse(file.isDirectory(), "Should not be identified as a directory");
        assertEquals(0, file.length(), "New file should have zero length");
    }

    @Test

/**
 * Test class for StringUtil utility methods
 */
class StringUtilTest {

    @Test
    @DisplayName("Should join single element without delimiter")
    void testJoinSingleElement() {
        String result = StringUtil.join(",", "hello");
        assertEquals("hello", result);
    }

    @Test
    @DisplayName("Should join two elements with delimiter")
    void testJoinTwoElements() {

        assertNotNull(avFlags, "AvFlags object should not be null");
        assertEquals(0x04030201, avFlags.getFlags(), "Flags should match the raw bytes (little-endian)");

        // Test with zero
        byte[] zeroBytes = new byte[] { 0x00, 0x00, 0x00, 0x00 };
        AvFlags zeroAvFlags = new AvFlags(zeroBytes);
        assertNotNull(zeroAvFlags, "AvFlags object should not be null for zero bytes");

        assertTrue(exception instanceof RuntimeCIFSException, "Should extend RuntimeCIFSException");
        assertTrue(exception instanceof RuntimeException, "Should be a RuntimeException");
    }

    @Test
    @DisplayName("Message constructor should create exception with specified message")
    void testMessageConstructor() {
        // Given & When