text shortcode into custompost

wordpress code

function test_shortcode($atts, $content = null){
       extract( shortcode_atts( array(
		'expand' => '',		
	   ), $atts) );
    
       $q = new WP_Query(
        array('posts_per_page' =>'9', 'post_type' =>'service')
        );	
	
		
	   $list = '<article class="widget-mini left-icon" >';
		while($q->have_posts()) : $q->the_post();
		$idd = get_the_ID();
                        
     $icon_type = get_post_meta($idd, 'icon_type', true);
    
$list .= '<div class="widget-mini-contents">
			<div class="widget-mini-feature-image">
			    <i class="icon-'.$icon_type.'"></i>
			</div>
			<div class="feature-heading">                                        
			    <h4><a href="'.get_permalink().'">'.get_the_title().'</a></h4>
			</div>
			<div class="widget-mini-desc">
		     	' .do_shortcode( get_the_content() ). '
			</div>								        

			</div>     
         
		';        
	endwhile;
    $list.= '</article>';
	wp_reset_query();
	return $list;

}
add_shortcode('list', 'test_shortcode');