WooCommerce: Display all products in one page in a simple way

functions.php

<?php

/**
 * All products in one page
 *
 * Display all products in a table with their add to cart button.
 * Usage : [all_products] to display all products.
 * Usage : [all_products category="singles"] to display products under "singles" category (slug).
 */

add_shortcode('all_products', 'prefix_show_all_products');

if ( ! function_exists( 'prefix_show_all_products' ) ) :

  function prefix_show_all_products($atts){

    $atts = shortcode_atts( array(
			'category'  => '' // Product category slug
		), $atts );

    $args = array();

    $args['post_type'] = 'product';
    $args['post_status'] = 'publish';
    $args['posts_per_page'] = -1;

    if( $atts['category'] ){
      $args['tax_query'] = array(
        array(
					'taxonomy' 	=> 'product_cat',
					'terms' 		=> array_map( 'sanitize_title', explode( ',', $atts['category'] ) ),
					'field' 		=> 'slug',
					'operator' 	=> 'IN'
				)
			);
    }

    $products = new WP_Query( $args );

    ob_start();
    ?>

    <table>
      <thead>
        <tr>
          <td><?php echo __('Product Name', 'textdomain'); ?></td>
          <td><?php echo __('Action', 'textdomain'); ?></td>
        </tr>
      </thead>

      <tbody>

        <?php
        while ( $products->have_posts() ) : $products->the_post();
        ?>

        <tr>
          <td>
            <?php the_title(); ?>
          </td>
          <td>
            <?php echo do_shortcode('[add_to_cart id="'.get_the_ID().'" show_price="false"]'); ?>
          </td>
        </tr>

        <?php
        endwhile;
        ?>

      </tbody>

    </table>


    <?php

    return ob_get_clean();

  }

endif;

Hello, how can I know if this code is still working ? Thank you.