}

        @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")

        assertNotNull(key1, "Should generate key 1");
        assertNotNull(key2, "Should generate key 2");
        assertEquals(32, key1.length, "Key 1 should have correct length");
        assertEquals(32, key2.length, "Key 2 should have correct length");
        assertFalse(Arrays.equals(key1, key2), "Random keys should be different");
    }

    @Test

        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.");

     * It should always return 0.
     */
    @Test
    void testWriteSetupWireFormat() {
        byte[] dst = new byte[10];
        // The method should not write anything and return 0
        assertEquals(0, response.writeSetupWireFormat(dst, 0), "writeSetupWireFormat should return 0.");
    }

    /**
     * Test for the writeParametersWireFormat method.
     * It should always return 0.
     */
    @Test

        assertNotNull(encryptedStr, "Encrypted string should not be null");
        assertFalse(encryptedStr.contains("TestPassword456"), "Plaintext should not be visible in encrypted string");

        // Should be valid base64
        assertTrue(encryptedStr.matches("^[A-Za-z0-9+/]*={0,2}$"), "Should be valid Base64 format");

        // Decrypt from string

            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());

        assertEquals(2, trans.maxParameterCount, "The maxParameterCount should be 2.");
        assertEquals(40, trans.maxDataCount, "The maxDataCount should be 40.");
        assertEquals((byte) 0x00, trans.maxSetupCount, "The maxSetupCount should be 0.");
    }

    /**
     * Tests the writeSetupWireFormat method.
     */
    @Test
    void testWriteSetupWireFormat() {
        // Given

        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