public function testOnceWithArguments()
{
$capturedArgs = [];
$this->emitter->once('foo', function ($a, $b) use(&$capturedArgs) {
$capturedArgs = array($a, $b);
});
$this->emitter->emit('foo', array('a', 'b'));
$this->assertSame(array('a', 'b'), $capturedArgs);
}
