/**
 * Base test case class for I/O tests.
 *
 * @author Chris Nokleberg
 * @author Colin Decker
 */
@NullUnmarked
public abstract class IoTestCase extends TestCase {

  private static final Logger logger = Logger.getLogger(IoTestCase.class.getName());

  static final String I18N =
      "\u00CE\u00F1\u0163\u00E9\u0072\u00F1\u00E5\u0163\u00EE\u00F6"

import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link CountingOutputStream}.
 *
 * @author Chris Nokleberg
 */
@NullUnmarked
public class CountingOutputStreamTest extends IoTestCase {

  public void testCount() throws Exception {
    int written = 0;
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    CountingOutputStream counter = new CountingOutputStream(out);

import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link CountingOutputStream}.
 *
 * @author Chris Nokleberg
 */
@NullUnmarked
public class CountingOutputStreamTest extends IoTestCase {

  public void testCount() throws Exception {
    int written = 0;
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    CountingOutputStream counter = new CountingOutputStream(out);

import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link CountingInputStream}.
 *
 * @author Chris Nokleberg
 */
@NullUnmarked
public class CountingInputStreamTest extends IoTestCase {
  private CountingInputStream counter;

  @Override
  protected void setUp() throws Exception {
    super.setUp();
    counter = new CountingInputStream(new ByteArrayInputStream(new byte[20]));
  }

/**
 * Unit tests for {@link LineBuffer} and {@link LineReader}.
 *
 * @author Chris Nokleberg
 */
@AndroidIncompatible // occasionally very slow
@NullUnmarked
public class LineBufferTest extends IoTestCase {

  public void testProcess() throws IOException {
    bufferHelper("");
    bufferHelper("\n", "\n");
    bufferHelper("\r\n", "\r\n");
    bufferHelper("\n\r", "\n", "\r");
    bufferHelper("\r", "\r");

import java.io.IOException;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link Files#fileTraverser()}.
 *
 * @author Jens Nyman
 */

@NullUnmarked
public class FilesFileTraverserTest extends IoTestCase {

  private File rootDir;

  @Override
  public void setUp() throws IOException {
    rootDir = createTempDir();
  }

  public void testFileTraverser_emptyDirectory() throws Exception {

import java.io.IOException;
import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for {@link Files#fileTraverser()}.
 *
 * @author Jens Nyman
 */

@NullUnmarked
public class FilesFileTraverserTest extends IoTestCase {

  private File rootDir;

  @Override
  public void setUp() throws IOException {
    rootDir = createTempDir();
  }

  public void testFileTraverser_emptyDirectory() throws Exception {

import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for the default implementations of {@code CharSink} methods.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class CharSinkTest extends IoTestCase {

  private static final String STRING = ASCII + I18N;

  private TestCharSink sink;

  @Override
  public void setUp() {
    sink = new TestCharSink();
  }

import org.jspecify.annotations.NullUnmarked;

/**
 * Unit tests for {@link CountingInputStream}.
 *
 * @author Chris Nokleberg
 */
@NullUnmarked
public class CountingInputStreamTest extends IoTestCase {
  private CountingInputStream counter;

  @Override
  protected void setUp() throws Exception {
    super.setUp();
    counter = new CountingInputStream(new ByteArrayInputStream(new byte[20]));
  }

import org.jspecify.annotations.NullUnmarked;

/**
 * Tests for the default implementations of {@code ByteSink} methods.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class ByteSinkTest extends IoTestCase {

  private final byte[] bytes = newPreFilledByteArray(10000);

  private TestByteSink sink;

  @Override
  protected void setUp() throws Exception {
    sink = new TestByteSink();
  }