Fatal error: Uncaught Error: Class "WP_UnitTestCase" not found in /home3/recensio/public_html/viaggiovero/wp/wp-content/plugins/ewww-image-optimizer/tests/test-tables.php:12 Stack trace: #0 {main} thrown in /home3/recensio/public_html/viaggiovero/wp/wp-content/plugins/ewww-image-optimizer/tests/test-tables.php on line 12