RescorerBuilder<?> result = ltrQueryRescorer.evaluate(params);
        assertNull(result);
    }

    public void test_evaluate_withWhitespaceModelName() {
        // Test when model name contains only whitespace
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getLtrModelName() {
                return "   ";
            }

            @Override

     *            The character code.
     */
    protected static void wordChar(final byte[] ctype2, final int val) {
        ctype2[val] |= CT_ALPHA;
    }

    /**
     * Sets characters as whitespace.
     *
     * @param ctype2
     *            The array of character types.
     * @param low
     *            The minimum character code.
     * @param hi
     *            The maximum character code.

        assertEquals(emptyMessage, exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_getMessage_withWhitespaceMessage() {
        // Test constructor with whitespace-only message
        String whitespaceMessage = "   ";
        SsoProcessException exception = new SsoProcessException(whitespaceMessage);

        assertEquals(whitespaceMessage, exception.getMessage());

    assertEquals(s, xmlEscaper.escape(s));

    // Test ASCII control characters.
    for (char ch = 0; ch < 0x20; ch++) {
      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);

import static com.google.common.base.CharMatcher.is;
import static com.google.common.base.CharMatcher.isNot;
import static com.google.common.base.CharMatcher.noneOf;
import static com.google.common.base.CharMatcher.whitespace;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.Sets;

        item.setNewInput(newSpecialInput);
        assertEquals(newSpecialInput, item.toLineString());
    }

    public void test_whitespaceHandling() {
        // Test with various whitespace
        StopwordsItem item1 = new StopwordsItem(1, " ");
        assertEquals(" ", item1.getInput());
        assertEquals(" ", item1.toLineString());

        StopwordsItem item2 = new StopwordsItem(2, "\t\n\r");

    return asCharSource(url, charset).readLines(callback);
  }

  /**
   * Reads all of the lines from a URL. The lines do not include line-termination characters, but do
   * include other leading and trailing whitespace.
   *
   * <p>This method returns a mutable {@code List}. For an {@code ImmutableList}, use {@code
   * Resources.asCharSource(url, charset).readLines()}.
   *
   * @param url the URL to read from

	// "fox"
	//
	// Split byte slice with multiple spaces:
	// "lots"
	// "of"
	// "spaces"
}

func ExampleFieldsFuncSeq() {
	text := []byte("The quick brown fox")
	fmt.Println("Split on whitespace(similar to FieldsSeq):")
	for word := range bytes.FieldsFuncSeq(text, unicode.IsSpace) {
		fmt.Printf("%q\n", word)
	}

	mixedText := []byte("abc123def456ghi")
	fmt.Println("\nSplit on digits:")

        assertProvideThrowsException("Test'Classification'");
    }

    public void test_provide_withWhitespace() {
        // Test classification names with whitespace
        assertProvideThrowsException(" ");
        assertProvideThrowsException("  ");
        assertProvideThrowsException("\t");
        assertProvideThrowsException("\n");
        assertProvideThrowsException("\r");

// It returns a single-use iterator.
func SplitAfterSeq(s, sep []byte) iter.Seq[[]byte] {
	return splitSeq(s, sep, len(sep))
}

// FieldsSeq returns an iterator over subslices of s split around runs of
// whitespace characters, as defined by [unicode.IsSpace].
// The iterator yields the same subslices that would be returned by [Fields](s),
// but without constructing a new slice containing the subslices.