assertThat(Ascii.toLowerCase("fOobaR")).isEqualTo("foobar");
  }

  public void testToUpperCase() {
    assertThat(Ascii.toUpperCase(LOWER)).isEqualTo(UPPER);
    assertThat(Ascii.toUpperCase(UPPER)).isSameInstanceAs(UPPER);
    assertThat(Ascii.toUpperCase(IGNORED)).isEqualTo(IGNORED);
    assertThat(Ascii.toUpperCase("FoOBAr")).isEqualTo("FOOBAR");
  }

  public void testCharsIgnored() {
    for (char c : IGNORED.toCharArray()) {

    assertThat(Ascii.toLowerCase("fOobaR")).isEqualTo("foobar");
  }

  public void testToUpperCase() {
    assertThat(Ascii.toUpperCase(LOWER)).isEqualTo(UPPER);
    assertThat(Ascii.toUpperCase(UPPER)).isSameInstanceAs(UPPER);
    assertThat(Ascii.toUpperCase(IGNORED)).isEqualTo(IGNORED);
    assertThat(Ascii.toUpperCase("FoOBAr")).isEqualTo("FOOBAR");
  }

  public void testCharsIgnored() {
    for (char c : IGNORED.toCharArray()) {

                        if (this.isUseUnicode()) {
                            this.accountName = this.accountName.toUpperCase();
                        }
                        this.primaryDomain = a.getUserDomain() != null ? a.getUserDomain().toUpperCase() : "?";
                    } else {
                        this.accountName = "";
                        this.primaryDomain = "";
                    }

   * without modification.
   *
   * @since 14.0
   */
  public static String toUpperCase(CharSequence chars) {
    if (chars instanceof String) {
      return toUpperCase((String) chars);
    }
    char[] newChars = new char[chars.length()];
    for (int i = 0; i < newChars.length; i++) {
      newChars[i] = toUpperCase(chars.charAt(i));
    }
    return String.valueOf(newChars);
  }

  /**

   * without modification.
   *
   * @since 14.0
   */
  public static String toUpperCase(CharSequence chars) {
    if (chars instanceof String) {
      return toUpperCase((String) chars);
    }
    char[] newChars = new char[chars.length()];
    for (int i = 0; i < newChars.length; i++) {
      newChars[i] = toUpperCase(chars.charAt(i));
    }
    return String.valueOf(newChars);
  }

  /**

    SpliteratorTester.of(
            () ->
                CollectSpliterators.map(
                    Arrays.spliterator(new String[] {"a", "b", "c", "d", "e"}),
                    0,
                    Ascii::toUpperCase))
        .expect("A", "B", "C", "D", "E");
  }

  public void testFlatMap() {
    SpliteratorTester.of(
            () ->
                CollectSpliterators.flatMap(

    public boolean equals(Object obj) {
        if (obj instanceof NtlmPasswordAuthenticator ntlm) {
            String domA = ntlm.getUserDomain() != null ? ntlm.getUserDomain().toUpperCase() : null;
            String domB = this.getUserDomain() != null ? this.getUserDomain().toUpperCase() : null;
            return ntlm.type == this.type && Objects.equals(domA, domB) && ntlm.getUsername().equalsIgnoreCase(this.getUsername())

            path = values[1];
        } else {
            path = "/" + values[1];
        }

        final CurlHelper curlHelper = ComponentUtil.getCurlHelper();
        switch (values[0].toUpperCase(Locale.ROOT)) {
        case "GET":
            return curlHelper.get(path);
        case "POST":
            return curlHelper.post(path);
        case "PUT":
            return curlHelper.put(path);

  public void testMap() {
    SpliteratorTester.of(
            () ->
                CollectSpliterators.map(
                    Arrays.spliterator(new String[] {"a", "b", "c", "d", "e"}), Ascii::toUpperCase))
        .expect("A", "B", "C", "D", "E");
  }

  public void testFlatMap() {
    SpliteratorTester.of(
            () ->
                CollectSpliterators.flatMap(

      if (ch == '\t' || ch == '\n' || ch == '\r') {
        // Only these whitespace chars are permitted in XML,
        if (shouldEscapeWhitespaceChars) {
          assertEscaping(xmlEscaper, "&#x" + Integer.toHexString(ch).toUpperCase() + ";", ch);
        } else {
          assertUnescaped(xmlEscaper, ch);
        }
      } else {
        // and everything else is replaced with FFFD.
        assertEscaping(xmlEscaper, "\uFFFD", ch);
      }