add( 'config', 'Invalid Config' ); $testee = new AC_Yoast_SEO_ACF_Content_Analysis(); $testee->boot(); $result = $registry->get( 'config' ); $this->assertNotSame( 'Invalid Config', $result ); $this->assertInstanceOf( Yoast_ACF_Analysis_Configuration::class, $result ); } }