public function testApiDelayTimes_AttachesProperOnceHandler(EventEmitterInterface $emitter)
{
$handler = $emitter->delayTimes('test', 2, 2, $this->expectCallableTwice());
$this->assertSame($emitter, $handler->getEmitter());
$this->assertEquals('test', $handler->getEvent());
$emitter->emit('test');
$emitter->emit('test');
$emitter->emit('test');
$emitter->emit('test');
}