Feature: Check if wp_cache_flush() function is used inside wp-content directory Scenario: Detect wp_cache_flush() Given a WP install And a wp-content/mu-plugins/plugin.php file: """ <?php wp_cache_flush(); """ When I run `wp doctor check cache-flush` Then STDOUT should be a table containing rows: | name | status | message | | cache-flush | warning | Use of wp_cache_flush() detected. |