}

    @Test
    @DisplayName("BufferCache interface should define correct method signatures")
    void testInterfaceContract() {
        // Given
        BufferCache cache = mockBufferCache;

        // When & Then - verify interface methods exist and can be called
        assertDoesNotThrow(() -> {
            cache.getBuffer();
            cache.releaseBuffer(new byte[1024]);

    @Nested
    @DisplayName("Protocol Information Tests")
    class ProtocolInfoTests {

        @Test
        @DisplayName("Should return correct syntax string")
        void testGetSyntax() {
            // When/Then: Verify the protocol syntax identifier
            assertEquals("12345778-1234-abcd-ef00-0123456789ac:1.0", samr.getSyntax());
        }
    }

    @Nested
    @DisplayName("Constants Tests")
    class ConstantsTests {

        // Given
        int dialect = Smb2Constants.SMB2_DIALECT_0300;

        // When
        byte[] signingKey = Smb3KeyDerivation.deriveSigningKey(dialect, sessionKey, preauthIntegrity);

        // Then
        assertNotNull(signingKey, "Signing key should not be null");
        assertEquals(16, signingKey.length, "Signing key should be 16 bytes");

        int sid = 0x2222;
        int resumeKey = 0x12345678;
        String filename = "dir\\pattern*";

        // When
        Trans2FindNext2 next = new Trans2FindNext2(sid, resumeKey, filename);

        // Then
        assertEquals(ServerMessageBlock.SMB_COM_TRANSACTION2, next.command, "Command must be SMB_COM_TRANSACTION2");
        assertEquals(SmbComTransaction.TRANS2_FIND_NEXT2, next.subCommand, "Sub-command must be TRANS2_FIND_NEXT2");

            // Then
            assertEquals(input, result, "Should not modify non-matching strings");
        }

        @Test
        @DisplayName("maskSecretValue should handle null input")
        void testMaskSecretValueWithNull() {
            // When
            String result = Strings.maskSecretValue(null);

            // Then

        this.permissions = value;
    }

    public String getToken() {
        checkSpecifiedProperty("token");
        return convertEmptyToNull(token);
    }

    public void setToken(String value) {
        registerModifiedProperty("token");
        this.token = value;
    }

    public String getUpdatedBy() {
        checkSpecifiedProperty("updatedBy");

        // When
        SmbResource result = emptyIterator.next();

        // Then
        assertNull(result, "next() should return null for empty iterator");
    }

    @Test
    @DisplayName("next should not throw NoSuchElementException")
    void testNextDoesNotThrowException() {
        // When & Then
        assertDoesNotThrow(() -> {
            emptyIterator.next();
            emptyIterator.next();

            // When/Then: Should throw DcerpcException for invalid URLs
            assertThrows(DcerpcException.class, () -> DcerpcHandle.parseBinding(url));
        }

        @Test
        @DisplayName("Should handle binding URLs without endpoints correctly")
        void testParseBindingWithoutEndpoint() {
            // When/Then: URLs without proper endpoints should fail

        startLatch.countDown();

        // Wait for completion
        assertTrue(endLatch.await(30, TimeUnit.SECONDS), "All threads should complete within timeout");
        executor.shutdown();

        // Then - Verify no exceptions occurred
        if (!exceptions.isEmpty()) {
            fail("Concurrent operations caused exceptions: " + exceptions.get(0));
        }

            byte[] bufferArray = buffer.array();

            // When
            int bytesConsumed = fileFsSizeInfo.decode(bufferArray, 0, bufferArray.length);

            // Then
            assertEquals(24, bytesConsumed);
            assertEquals(1048576L * 8 * 512, fileFsSizeInfo.getCapacity());
            assertEquals(524288L * 8 * 512, fileFsSizeInfo.getFree());
        }

        @Test