return buf;
    }

    /**
     * Appends exception information to the buffer.
     *
     * @param buf the string buffer to append to
     * @param exception the exception to append
     * @return the updated buffer
     */
    protected StringBuilder appendException(final StringBuilder buf, final Exception exception) {
        try (ByteArrayOutputStream baos = new ByteArrayOutputStream();

     * @throws Exception
     */
    @Test
    public void testGetElementType_Rawtype() throws Exception {
        assertThat(FieldUtil.getElementTypeOfCollection(Baz.class.getField("collectionOfRawtype")), is(nullValue()));
    }

    /**
     * @throws Exception
     */
    public void testGetElementTypeOfCollection() throws Exception {

    private int getStatus(NetShareEnumResponse response) throws Exception {
        Field field = getSuperclassField(response.getClass(), "status");
        field.setAccessible(true);
        return field.getInt(response);
    }

    private void setStatus(NetShareEnumResponse response, int value) throws Exception {
        Method method = getSuperclassMethod(response.getClass(), "setStatus", int.class);

    @Test
    public void test_get_emptyFile() throws Exception {
        writeTestFile("");

        OptionalEntity<CharMappingItem> result = charMappingFile.get(1L);
        assertFalse(result.isPresent());
    }

    // Test get method with valid data
    @Test
    public void test_get_validData() throws Exception {
        writeTestFile("a,b => c\nd,e => f\n");

    /**
     * Sends a message (and accompanying exception) to the user in the <b>debug</b> error level.
     * The error's stacktrace will be output when this error level is enabled.
     *
     * @param content the message to log
     * @param error the error that caused this log
     */
    void debug(CharSequence content, Throwable error);

    /**
     * Sends an exception to the user in the <b>debug</b> error level.

    /**
     * @throws Exception
     */
    @Test
    public void testIsToOs() throws Exception {
        final int result = copy(is, os);
        assertThat(result, is(srcBytes.length));
        assertThat(os.toByteArray(), is(srcBytes));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testReaderToWriter() throws Exception {
        final int result = copy(reader, writer);

    @DisplayName("createChannelTransport should fail with null addresses")
    void testCreateChannelTransportWithNullAddresses() {
        // Use reflection to access private method for testing
        Exception exception = assertThrows(Exception.class, () -> {
            java.lang.reflect.Method method =
                    MultiChannelManager.class.getDeclaredMethod("createChannelTransport", InetAddress.class, InetAddress.class);

    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        ComponentUtil.register(new DataSerializer(), "dataSerializer");
        // Register protocolHelper - it doesn't need FessConfig for the methods used in tests
        ComponentUtil.register(new ProtocolHelper(), "protocolHelper");
    }

    @Test
    public void test_transform() throws Exception {

    void read_lenZero_returnsZero() throws Exception {
        SmbRandomAccessFile raf = newInstance("r", false, false, false);
        byte[] buf = new byte[4];
        assertEquals(0, raf.read(buf, 0, 0));
    }

    @Test
    @DisplayName("read(): returns -1 when underlying read reports EOF")
    void read_returnsMinusOne_onEOF() throws Exception {

import static org.junit.Assert.assertThat;

import org.junit.Test;

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

    /**
     * @throws Exception
     */
    @Test
    public void testGetAsObjectAndGetAsString() throws Exception {
        final TimestampConverter converter = new TimestampConverter("yyyy/MM/dd HH:mm:ss");