public function testNullDoesNotStopPropagation()
{
$events = new \Elgg\EventsService();
$events->registerHandler('foo', 'bar', 'Elgg\\Values::getNull');
$events->registerHandler('foo', 'bar', array($this, 'incrementCounter'));
$this->assertTrue($events->trigger('foo', 'bar'));
$this->assertEquals($this->counter, 1);
}