function testTransientForceFilter() { $transient = $this->_generate_transient_name(); TimberHelper::_lock_transient($transient, 30); add_filter('timber_force_transient_' . $transient, '__return_true'); $get_transient = TimberHelper::transient($transient, '__return_true'); remove_filter('timber_force_transient_' . $transient, '__return_true'); $this->assertTrue($get_transient); }