def sourceContent = parse('''
            <chapter>
                <section><title>Properties</title></section>
            </chapter>
        ''')

        ClassDoc classDoc = classDoc('org.gradle.Class', id: 'classId', content: sourceContent, comment: 'class comment')
        _ * classDoc.classProperties >> []
        _ * classDoc.classMethods >> []
        _ * classDoc.classBlocks >> []
        _ * classDoc.classExtensions >> []