assertEquals(HEADER_SIZE + CHUNK_SIZE, bytesWritten);

            // Verify source key at correct position
            for (int i = 0; i < SOURCE_KEY_SIZE; i++) {
                assertEquals(sourceKey[i], largeBuffer[position + i]);
            }

            // Verify chunk count at correct position
            assertEquals(1, SMBUtil.readInt4(largeBuffer, position + SOURCE_KEY_SIZE));
        }

        int expectedBytes = 12 + (fileName.length() * 2); // Unicode is 2 bytes per char
        assertEquals(expectedBytes, bytesRead);
    }

    @Test
    @DisplayName("Test getAction returns correct value")
    void testGetAction() throws SMBProtocolDecodingException {
        int expectedAction = FileNotifyInformation.FILE_ACTION_RENAMED_NEW_NAME;

    @Test
    public void test_defaultSettings_emailAddressCorrect() throws Exception {
        // Test that the email typo fix is correct: support@@example.com -> ******@****.***
        Map<String, Object> defaultSettings = createDefaultSettings();

        // Verify email addresses are correctly formatted (no double @)
        String technicalEmail = (String) defaultSettings.get("onelogin.saml2.contacts.technical.email_address");

    private static final int TEST_FID = 0x1234;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
    }

    @Test
    @DisplayName("Constructor should initialize with correct values")
    void testConstructor() {
        // Act
        transPeekNamedPipe = new TransPeekNamedPipe(mockConfig, TEST_PIPE_NAME, TEST_FID);

        // Assert
        assertNotNull(transPeekNamedPipe);

This gives you a lot of **flexibility**. You can return any data type, override any data declaration or validation, etc.

It also gives you a lot of **responsibility**. You have to make sure that the data you return is correct, in the correct format, that it can be serialized, etc.

## Using the `jsonable_encoder` in a `Response` { #using-the-jsonable-encoder-in-a-response }

is shorter than ",notConfirmed:"Input values could not be confirmed",badDomain:"Incorrect domain value",badUrl:"The input value is not a correct URL",badCustomVal:"The input value is incorrect",andSpaces:" and spaces ",badInt:"The input value was not a correct number",badSecurityNumber:"Your social security number was incorrect",badUKVatAnswer:"Incorrect UK VAT Number",badUKNin:"Incorrect UK NIN",badUKUtr:"Incorrect UK UTR Number",badStrength:"The password isn't strong enough",badNumberOfSelectedOptionsStart:"You...

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.collect.SneakyThrows.sneakyThrow;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.collect.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.collect.SneakyThrows.sneakyThrow;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;

        // Test with various messages
        String message = "Test error message";
        TransportException exception = new TransportException(message);

        // Verify the exception has the correct message
        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());

        // Test with empty string

    // we create a test suite containing a test for every FuturesTest test method and we
    // set it as the name of the test.  Then in runTest we can reflectively load and invoke the
    // corresponding method on FuturesTest in the correct classloader.
    TestSuite suite = new TestSuite(AggregateFutureStateFallbackAtomicHelperTest.class.getName());
    for (Method method : FuturesTest.class.getDeclaredMethods()) {
      if (Modifier.isPublic(method.getModifiers())