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")

            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")

  }

  /**
   * A char source that reads bytes from this source and decodes them as characters using a charset.
   */
  class AsCharSource extends CharSource {

    final Charset charset;

    AsCharSource(Charset charset) {
      this.charset = checkNotNull(charset);
    }

    @Override
    public ByteSource asByteSource(Charset charset) {
      if (charset.equals(this.charset)) {

# Default language for GSA queries.
query.gsa.default.lang=en
# Default sort for GSA queries.
query.gsa.default.sort=
# Meta prefix for GSA queries.
query.gsa.meta.prefix=MT_
# Charset field for GSA index queries.
query.gsa.index.field.charset=charset
# Content type field for GSA index queries.
query.gsa.index.field.content_type.=content_type
# Maximum concurrent group results for collapse queries.

    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> {

    /**
     * Gets the pattern used for extracting charset from meta tags.
     *
     * @return the meta charset pattern
     */
    public Pattern getMetaCharsetPattern() {
        return metaCharsetPattern;
    }

    /**
     * Sets the pattern used for extracting charset from meta tags.
     *
     * @param metaCharsetPattern the meta charset pattern to set
     */

        Ordering<Integer> ord,
        Charset charset,
        TimeUnit unit,
        Class<?> cls,
        Joiner joiner,
        Pattern pattern,
        UnsignedInteger ui,
        UnsignedLong ul,
        StringBuilder sb,
        Predicate<?> pred,
        Function<?, ?> func,
        Object obj) {
      delegate.foo(
          s, r, n, it, b, eq, e, in, c, ord, charset, unit, cls, joiner, pattern, ui, ul, sb, pred,

 */
package okhttp3

import java.nio.charset.Charset
import kotlin.text.Charsets.ISO_8859_1
import okio.ByteString.Companion.encode

/** Factory for HTTP authorization credentials. */
object Credentials {
  /** Returns an auth credential for the Basic scheme. */
  @JvmStatic @JvmOverloads
  fun basic(
    username: String,
    password: String,
    charset: Charset = ISO_8859_1,
  ): String {

 * The extracted text is then converted into a byte array using the specified charset encoding.
 * It also provides a method to retrieve the extracted data as a String from an AccessResultData object.
 *
 * <p>
 * The class handles character encoding issues by attempting to use the specified charset.
 * If the specified charset is invalid, it falls back to UTF-8.
 * </p>
 *
 * <p>

    for (String edge : edges) {
      checkArgument(
          edge.length() == 2, "Expecting each edge to consist of 2 characters but got %s", edge);
      char node1 = edge.charAt(0);
      char node2 = edge.charAt(1);
      graphMapBuilder.put(node1, node2);
      if (!directed) {
        graphMapBuilder.put(node2, node1);
      }
    }