}

  @Override
  public void write(byte[] b, int off, int len) throws IOException {
    // Override slow FilterOutputStream impl
    out.write(b, off, len);
  }

  @Override
  public void writeBoolean(boolean v) throws IOException {
    ((DataOutputStream) out).writeBoolean(v);
  }

  @Override
  public void writeByte(int v) throws IOException {
    ((DataOutputStream) out).writeByte(v);
  }

  /**

   */

  @Override
  public void write(int c) throws IOException {
    checkNotClosed();
    target.append((char) c);
  }

  @Override
  public void write(String str) throws IOException {
    checkNotNull(str);
    checkNotClosed();
    target.append(str);
  }

  @Override
  public void write(String str, int off, int len) throws IOException {
    checkNotNull(str);
    checkNotClosed();

  }

  public void testOpenBufferedStream() throws IOException {
    Writer writer = sink.openBufferedStream();
    assertTrue(sink.wasStreamOpened());
    assertFalse(sink.wasStreamClosed());

    writer.write(STRING);
    writer.close();

    assertTrue(sink.wasStreamClosed());
    assertEquals(STRING, sink.getString());
  }

  public void testWrite_string() throws IOException {
    assertEquals("", sink.getString());

  }

  @Override
  public void readFully(byte[] b) throws IOException {
    ByteStreams.readFully(this, b);
  }

  @Override
  public void readFully(byte[] b, int off, int len) throws IOException {
    ByteStreams.readFully(this, b, off, len);
  }

  @Override
  public int skipBytes(int n) throws IOException {
    return (int) in.skip(n);
  }

  @CanIgnoreReturnValue // to skip a byte

    /**
     * Get the address the service is listening on
     *
     * @return the service address
     * @throws IOException if address cannot be determined
     */
    public InetAddress getAddress() throws IOException {
        if (serverSocket == null) {
            throw new IOException("Service not started");
        }
        return InetAddress.getLocalHost();
    }

    /**

    /**
     * Test method for
     * {@link org.codelibs.core.io.PropertiesUtil#store(Properties, java.io.OutputStream, String)}
     * .
     *
     * @throws IOException
     */
    @Test
    public void testStorePropertiesOutputStreamString() throws IOException {
        final Properties outProperties = new Properties();
        outProperties.setProperty("a", "A");
        final File file = tempFolder.newFile("hoge.properties");

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.math.BigInteger;
import java.util.Date;

import org.junit.jupiter.api.Test;

import jcifs.SmbConstants;
import jcifs.smb.SID;

public class PacDataInputStreamTest {

    // Helper to create PacDataInputStream from a byte array
    private PacDataInputStream createInputStream(byte[] data) throws IOException {

        // Arrange
        int access = 0x01;
        IOException expectedException = new IOException("Network error");
        // Simulate IOException during RPC call
        doThrow(expectedException).when(mockDcerpcHandle).sendrecv(any(MsrpcSamrOpenDomain.class));

        // Act & Assert
        IOException thrown = assertThrows(IOException.class, () -> {

  public void testMethodsThrowWhenClosed() throws IOException {
    CharSequenceReader reader = new CharSequenceReader("");
    reader.close();

    assertThrows(IOException.class, () -> reader.read());

    assertThrows(IOException.class, () -> reader.read(new char[10]));

    assertThrows(IOException.class, () -> reader.read(new char[10], 0, 10));

    assertThrows(IOException.class, () -> reader.read(CharBuffer.allocate(10)));

   * independent stream each time it is called.
   *
   * <p>The caller is responsible for ensuring that the returned stream is closed.
   *
   * @throws IOException if an I/O error occurs while opening the stream
   */
  public abstract OutputStream openStream() throws IOException;

  /**
   * Opens a new buffered {@link OutputStream} for writing to this sink. The returned stream is not