}

    @Test
    void testRoundTripEncodeDecodeForRequestType() throws Exception {
        TestMessage m = new TestMessage();
        m.ptype = 0; // Request type
        NdrBuffer buf = new NdrBuffer(new byte[1024], 0);
        m.encode(buf);

        buf.setIndex(0);
        // Decode will throw exception as ptype 0 is not a valid response type
        assertThrows(NdrException.class, () -> m.decode(buf));

        try {
            helper.init();
            assertNotNull(helper.suggester());
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test
    public void test_suggester() {
        try {
            assertNull(suggestHelper.suggester());
        } catch (Exception e) {
            assertTrue(true);
        }
    }

    @Test

import org.codelibs.core.exception.EmptyArgumentException;
import org.codelibs.core.exception.NoSuchConstructorRuntimeException;
import org.codelibs.core.exception.NoSuchFieldRuntimeException;
import org.junit.Test;

/**
 * @author higa
 */
public class ClassUtilTest {

    /** */
    public static final String HOGE = "hoge";

    /**
     * @throws Exception
     */

    private int count;

    private String names = "";

    /**
     * @throws Exception
     */
    @Before
    public void setUp() throws Exception {
        DisposableUtil.dispose();
    }

    /**
     * @throws Exception
     */
    @Test
    public void test1() throws Exception {
        DisposableUtil.add(new TestDisposable("a"));
        assertThat(DisposableUtil.disposables.size(), is(1));

        final ClRuntimeException ex = new ClRuntimeException("ECL0001", asArray("hoge"));
        assertThat(ex.getMessageCode(), is("ECL0001"));
        assertThat(ex.getArgs().length, is(1));
        assertThat(ex.getArgs()[0], is((Object) "hoge"));
        System.out.println(ex.getMessage());
    }

    /**
     * @throws Exception
     */
    @Test
    public void testGetCause() throws Exception {

    void mockInteraction_stubsThrow_andVerifiesInvocation() {
        // Arrange: Since SmbUnsupportedOperationException is a checked exception (extends IOException),
        // we need to use a method that can throw checked exceptions or wrap it in a RuntimeException
        @SuppressWarnings("unchecked")
        Supplier<String> supplier = mock(Supplier.class);

    }

    /**
     * Sets an error in the current request with the specified status code and exception.
     *
     * @param statusCode The HTTP status code
     * @param e The exception that caused the error
     */
    public static void setError(final int statusCode, final Exception e) {
        LaRequestUtil.getOptionalRequest().ifPresent(req -> req.setAttribute(WEB_API_EXCEPTION, new WebApiException(statusCode, e)));

     * @param columnNumber The one-based index of the column containing the problem or {@code -1} if unknown.
     * @param exception The exception that caused this problem, may be {@code null}.
     */
    public DefaultSettingsProblem(
            String message, Severity severity, String source, int lineNumber, int columnNumber, Exception exception) {
        this.message = message;
        this.severity = (severity != null) ? severity : Severity.ERROR;

        try {
            validator.initialize(annotation);
            assertTrue("Initialize should complete without exception", true);
        } catch (final Exception e) {
            fail("Initialize should not throw exception with valid annotation: " + e.getMessage());
        }
    }

    // Test parameter validation without relying on complex configuration
    @Test

        NbtException exception = new NbtException(errorClass, errorCode);

        assertEquals(errorClass, exception.errorClass, "Error class should match the constructor argument");
        assertEquals(errorCode, exception.errorCode, "Error code should match the constructor argument");
        assertEquals(NbtException.getErrorString(errorClass, errorCode), exception.getMessage(),