int result = (int) method.invoke(cancel, buffer, bufferIndex);

            // Then
            assertEquals(0, result);
        }
    }

    @Nested
    @DisplayName("Wire Format Tests")
    class WireFormatTests {

        private SmbComNtCancel cancel;
        private Configuration mockConfig;

        @BeforeEach
        void setUp() throws Exception {

        IOException exception = assertThrows(IOException.class, () -> {
            packet.readTrailerWireFormat(bais, readBuffer, 0);
        });

        assertEquals("invalid session request wire format", exception.getMessage());
    }

    @ParameterizedTest
    @MethodSource("provideNamesForWriteTest")
    @DisplayName("writeTrailerWireFormat should handle various name combinations")

            assertFalse(UniAddress.isDotQuadIP(input));
        }

        @Test
        void shouldReturnTrueForInvalidOctetValues() {
            // isDotQuadIP does not validate octet values, only checks format
            assertTrue(UniAddress.isDotQuadIP("192.168.1.256"));
            assertTrue(UniAddress.isDotQuadIP("999.999.999.999"));
        }

        @Test
        void shouldThrowExceptionForNullInput() {

        SecurityBlob blob = new SecurityBlob(input);

        // Act
        String actual = blob.toString();

        // Assert
        assertEquals(expected, actual, "Hex string should match expected format");
    }

    // Ensures a default-constructed blob starts empty and stable across APIs
    @Test
    @DisplayName("Default constructor yields empty state")
    void defaultConstructor_initialState() {

            validator.validateMessageSize(17 * 1024 * 1024, false);
        });
    }

    @Test
    public void testValidString() throws Exception {
        validator.validateString("normal string", 100, "test");
        validator.validateString(null, 100, "test"); // Null should be allowed
        // Should pass without exception
    }

    @Test
    public void testStringTooLong() throws Exception {

        // Then - nothing should happen (empty implementation)
        verifyNoInteractions(resp);
    }

    @Test
    @DisplayName("Should read valid negotiate response from wire format")
    void testReadBytesWireFormatValid() throws Exception {
        // Given
        byte[] buffer = createValidNegotiateResponseBuffer();

        // When

                        }
                        if (isDisconnected() && this.state != 5) {
                            throw new TransportException(
                                    String.format("Transport was disconnected while waiting for a response (transport: %s state: %d),",
                                            this.name, this.state));
                        }

 * This handler extends {@link URLStreamHandler} to provide a way to open connections to GCS objects
 * using URLs with the "gcs" protocol.
 *
 * <p>
 * The URL format is expected to be: {@code gcs://bucketName/objectName}.
 * The bucket name and object name are extracted from the URL.
 * </p>
 *
 * <p>
 * The handler relies on environment variables for configuration:
 * </p>

 * This handler extends {@link URLStreamHandler} to provide a way to open connections to S3 objects
 * using URLs with the "s3" protocol.
 *
 * <p>
 * The URL format is expected to be: {@code s3://bucketName/objectName}.
 * The bucket name and object name are extracted from the URL.
 * </p>
 *
 * <p>
 * The handler relies on environment variables for configuration:
 * </p>
 * <ul>

    static {
        // Initialize long key with predictable data
        Arrays.fill(LONG_TEST_KEY, (byte) 0xAB);
    }

    @Test
    void testConstructorWithNormalKey() {
        // Test constructor with a normal length key
        HMACT64 hmac = new HMACT64(TEST_KEY);
        assertNotNull(hmac);
    }

    @Test
    void testConstructorWithLongKey() {
        // Test constructor with a key longer than BLOCK_LENGTH (64 bytes)