*/
    public boolean isValid(final InputStream in) {
        return isValid(in, true);
    }

    /**
     * Checks if the given input stream contains valid sitemap data.
     * @param in the input stream to validate
     * @param recursive whether to recursively check compressed files
     * @return true if the stream contains valid sitemap data, false otherwise

	// Check if range string contains delimiter '-', else return error. eg. "bytes=8"
	sepIndex := strings.Index(byteRangeString, "-")
	if sepIndex == -1 {
		return nil, fmt.Errorf("'%s' does not have a valid range value", rangeString)
	}

	offsetBeginString := byteRangeString[:sepIndex]
	offsetBegin := int64(-1)
	// Convert offsetBeginString only if its not empty.
	if len(offsetBeginString) > 0 {

    }

    /**
     * Test toString method behavior - requires valid configuration
     */
    @Test
    @DisplayName("Test toString requires valid configuration")
    public void testToStringRequiresValidConfig() {
        // Constructor with null config throws exception, so we can't test toString with null config
        // Instead, test that toString works with a valid config

        // Given

        assertNotNull(responseWithNull);
    }

    @Test
    @DisplayName("Should return consistent bytes read for valid structure")
    void testConsistentBytesRead() throws SMBProtocolDecodingException {
        // Given - 10 different valid buffers
        for (int i = 0; i < 10; i++) {
            byte[] buffer = new byte[256];
            SMBUtil.writeInt2(4, buffer, i * 10);

        assertTrue(sitemaps.length >= 1);
        assertEquals("http://www.example.com/valid.html", sitemaps[sitemaps.length - 1].getLoc());
    }

    public void test_parseXmlSitemaps_mixedValidInvalid() {
        // Mix of valid and invalid entries should parse valid ones
        final String xml =

)

// validateID - checks if ID is valid or not.
func (r Rule) validateID() error {
	if len(r.ID) > 255 {
		return errInvalidRuleID
	}
	return nil
}

// validateStatus - checks if status is valid or not.
func (r Rule) validateStatus() error {
	// Status can't be empty
	if len(r.Status) == 0 {
		return errEmptyRuleStatus
	}

        return determineValid(value);
    }

    /**
     * Determines if the given value is a valid cron expression.
     * @param value the value to validate
     * @return true if valid, false otherwise
     */
    protected boolean determineValid(final String value) {
        if (StringUtil.isNotBlank(value) && !LaCronUtil.isCronExpValid(value)) {

        assertNull(response.getSecurityDescriptor());
    }

    @Test
    @DisplayName("Test readDataWireFormat with valid security descriptor")
    void testReadDataWireFormatWithValidSecurityDescriptor() throws Exception {
        // Create a minimal valid security descriptor buffer
        byte[] buffer = createValidSecurityDescriptorBuffer();

        // Set error code to 0

func TestCreateCredentials(t *testing.T) {
	testCases := []struct {
		accessKey   string
		secretKey   string
		valid       bool
		expectedErr error
	}{
		// Valid access and secret keys with minimum length.
		{alphaNumericTable[:accessKeyMinLen], alphaNumericTable[:secretKeyMinLen], true, nil},
		// Valid access and/or secret keys are longer than minimum length.

	// AES256 is used with SSE-S3
	AES256 Algorithm = "AES256"
	// AWSKms is used with SSE-KMS
	AWSKms Algorithm = "aws:kms"
)

// Algorithm - represents valid SSE algorithms supported; currently only AES256 is supported
type Algorithm string

// UnmarshalXML - Unmarshals XML tag to valid SSE algorithm
func (alg *Algorithm) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error {
	var s string
	if err := d.DecodeElement(&s, &start); err != nil {