bufferSize = DEFAULT_BUF_SIZE;
        }
        char[] buf = new char[bufferSize];
        int size = 0;
        int len;
        try {
            while ((len = reader.read(buf, size, bufferSize - size)) != -1) {
                size += len;
                if (size == bufferSize) {
                    final char[] newBuf = new char[bufferSize + initialCapacity];

    @Test
    public void testContains_character() throws Exception {
        assertThat(ArrayUtil.contains(new char[] { '1', '2' }, '1'), is(true));
        assertThat(ArrayUtil.contains(new char[] { '1' }, '2'), is(not(true)));
        assertThat(ArrayUtil.contains(new char[] { '2', '1' }, '1'), is(true));
        assertThat(ArrayUtil.contains((char[]) null, '1'), is(not(true)));
    }

    /**
     * @throws Exception
     */
    @Test

    public static final String MIN_ELEMENT = "a";
    public static final String AFTER_LAST = "z";
    public static final String AFTER_LAST_2 = "zz";
  }

  public static class Chars extends SampleElements<Character> {
    public Chars() {
      // elements aren't sorted, to better test SortedSet iteration ordering
      super('b', 'a', 'c', 'd', 'e');
    }
  }

  public static class Enums extends SampleElements<AnEnum> {

            assertTrue(result.startsWith("NtlmChallenge[challenge=0x"));
            assertTrue(result.endsWith(",dc=SERVER123]"));

            // Hexdump.toHexString with size = length * 2 produces 8 uppercase hex chars
            // The hex should be "010203FF"
            assertTrue(result.contains("010203FF"));
        }

        @Test
        @DisplayName("toString with empty challenge array")

   * false} for {@code boolean} and {@code '\0'} for {@code char}. For non-primitive types and
   * {@code void}, {@code null} is returned.
   */
  @SuppressWarnings("unchecked")
  public static <T> @Nullable T defaultValue(Class<T> type) {
    checkNotNull(type);
    if (type.isPrimitive()) {
      if (type == boolean.class) {
        return (T) Boolean.FALSE;
      } else if (type == char.class) {
        return (T) Character.valueOf('\0');

        assertNotNull(result);
        // Hexdump uses uppercase letters
        // Note: completionFilter is displayed with 4 hex chars, not 8
        assertTrue(result.contains("fid=0xFFFF"));
        assertTrue(result.contains("filter=0xFFFF")); // Only 4 hex chars are shown
        assertTrue(result.contains("watchTree=true"));
    }

    @Test
    @DisplayName("Test toString method with zero values")

    this.source = factory.createSource(data);
  }

  public void testOpenStream() throws IOException {
    Reader reader = source.openStream();

    StringWriter writer = new StringWriter();
    char[] buf = new char[64];
    int read;
    while ((read = reader.read(buf)) != -1) {
      writer.write(buf, 0, read);
    }
    reader.close();
    writer.close();

    assertExpectedString(writer.toString());

    val c = name[i]
    require(c in '\u0021'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in header name: $name"
    }
  }
}

internal fun headersCheckValue(
  value: String,
  name: String,
) {
  for (i in value.indices) {
    val c = value[i]
    require(c == '\t' || c in '\u0020'..'\u007e') {
      "Unexpected char 0x${c.charCode()} at $i in $name value" +

import java.io.FilterWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;
import org.jspecify.annotations.NullUnmarked;

/**
 * A char sink for testing that has configurable behavior.
 *
 * @author Colin Decker
 */
@NullUnmarked
public class TestCharSink extends CharSink implements TestStreamSupplier {

  private final TestByteSink byteSink;

        }
        return Encdec.dec_uint16be(tmp, 0) & 0xFFFF;
    }

    @Override
    public final char readChar() throws SmbException {
        if (read(tmp, 0, 2) < 0) {
            throw new SmbException("EOF");
        }
        return (char) Encdec.dec_uint16be(tmp, 0);
    }

    @Override
    public final int readInt() throws SmbException {
        if (read(tmp, 0, 4) < 0) {