String ancestorName = name.substring(substringFrom);

    return new InternetDomainName(ancestorName, ancestorParts);
  }

  /**
   * Creates and returns a new {@code InternetDomainName} by prepending the argument and a dot to
   * the current name. For example, {@code InternetDomainName.from("foo.com").child("www.bar")}
   * returns a new {@code InternetDomainName} with the value {@code www.bar.foo.com}. Only lenient

/**
 * {@link TestCase} for {@link InternetDomainName}.
 *
 * @author Craig Berry
 */
@GwtCompatible
@NullUnmarked
public final class InternetDomainNameTest extends TestCase {
  private static final InternetDomainName UNICODE_EXAMPLE =
      InternetDomainName.from("j\u00f8rpeland.no");
  private static final InternetDomainName PUNYCODE_EXAMPLE =
      InternetDomainName.from("xn--jrpeland-54a.no");

/**
 * {@link TestCase} for {@link InternetDomainName}.
 *
 * @author Craig Berry
 */
@GwtCompatible
@NullUnmarked
public final class InternetDomainNameTest extends TestCase {
  private static final InternetDomainName UNICODE_EXAMPLE =
      InternetDomainName.from("j\u00f8rpeland.no");
  private static final InternetDomainName PUNYCODE_EXAMPLE =
      InternetDomainName.from("xn--jrpeland-54a.no");

import org.jspecify.annotations.NullUnmarked;

/**
 * {@link TestCase} for {@link HostSpecifier}. This is a relatively cursory test, as HostSpecifier
 * is a thin wrapper around {@link InetAddresses} and {@link InternetDomainName}; the unit tests for
 * those classes explore numerous corner cases. The intent here is to confirm that everything is
 * wired up properly.
 *
 * @author Craig Berry
 */
@NullUnmarked
@GwtIncompatible

 *
 * @author Ben Yu
 */

@NullUnmarked
@GwtIncompatible
@J2ktIncompatible
public class PackageSanityTests extends AbstractPackageSanityTests {
  public PackageSanityTests() {
    setDefault(InternetDomainName.class, InternetDomainName.from("google.com"));
  }

import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.ImmutableList;

/**
 * <b>Do not use this class directly. For access to public-suffix information, use {@link
 * com.google.common.net.InternetDomainName}.</b>
 */
@GwtCompatible
@Beta
public final class PublicSuffixPatterns {
  private PublicSuffixPatterns() {}

  /**
   * String pool containing TLDs and domain labels.
   *