Kraken\_Unit\Event\EventEmitterTest::testApiOnce_AttachesProperOnceHandler PHP Method

    public function testApiOnce_AttachesProperOnceHandler(EventEmitterInterface $emitter)
    {
        $handler = $emitter->once('test', $this->expectCallableOnce());
        $this->assertSame($emitter, $handler->getEmitter());
        $this->assertEquals('test', $handler->getEvent());
        $emitter->emit('test');
        $emitter->emit('test');
    }