assertFalse(matchesTag(tags[0], "<a></a>"));

        assertTrue(matchesTag(tags[1], "<div id=\"main\"></div>"));
        assertFalse(matchesTag(tags[1], "<div></div>"));

        assertTrue(matchesTag(tags[2], "<p class=\"image\"></p>"));
        assertFalse(matchesTag(tags[2], "<p></p>"));

        assertTrue(matchesTag(tags[3], "<a rel=\"nofollow\"></a>"));

  @GwtIncompatible // TODO
  @SuppressWarnings("fallthrough")
  public static long divide(long p, long q, RoundingMode mode) {
    checkNotNull(mode);
    long div = p / q; // throws if q == 0
    long rem = p - q * div; // equals p % q

    if (rem == 0) {
      return div;
    }

    /*
     * Normal Java division rounds towards 0, consistently with RoundingMode.DOWN. We just have to

    return client.newCall(request).execute()
  }

  private fun writeFile(
    directory: Path,
    file: String,
    content: String,
  ) {
    val sink = fileSystem.sink(directory.div(file)).buffer()
    sink.writeUtf8(content)
    sink.close()
  }

  /**
   * @param delta the offset from the current date to use. Negative values yield dates in the past;