Only allow those who can edit the post to add drafts to cart. For testing. Closes #3381

includes/abstracts/abstract-wc-product.php

@@ -708,6 +708,10 @@ class WC_Product {
 		elseif ( $this->get_price() === '' )
 			$purchasable = false;
 
+		// Check the product is published
+		elseif ( $this->post->post_status !== 'publish' && ! current_user_can( 'edit_post', $this->id ) )
+			$purchasable = false;
+
 		return apply_filters( 'woocommerce_is_purchasable', $purchasable, $this );
 	}
 

includes/class-wc-cart.php

@@ -321,7 +321,7 @@ class WC_Cart {
 			// Check item stock
 			$result = $this->check_cart_item_stock();
 
-			if (is_wp_error($result))
+			if ( is_wp_error( $result ) )
 				wc_add_error( $result->get_error_message() );
 		}