public function whenProvider() : \Generator
{
foreach (['before', 'on', 'after'] as $when) {
$eventNames = [];
if ($when !== 'on') {
$eventNames = [sprintf('%s %s %s', $when, FlyweightInput::named('WHITE_MOVES')->getName(), FlyweightState::named('WHITES_TURN')->getName()), sprintf('%s %s %s', $when, FlyweightInput::any()->getName(), FlyweightState::named('WHITES_TURN')->getName()), sprintf('%s %s %s', $when, FlyweightInput::named('WHITE_MOVES')->getName(), FlyweightState::any()->getName())];
}
$eventNames[] = sprintf('%s %s %s', $when, FlyweightInput::any()->getName(), FlyweightState::any()->getName());
(yield [$when, $eventNames]);
}
}
/**
* Returns events to be emitted whenever a state transition is attempted
*
* @param Input $input
* @param State $currentState
*
* @return Generator
*/
private function eventProvider(Input $input, State $currentState) : Generator
{
$anyInput = FlyweightInput::any();
$anyState = FlyweightState::any();
(yield Event::named($this->getEventName('before', $input, $currentState)));
(yield Event::named($this->getEventName('before', $anyInput, $currentState)));
(yield Event::named($this->getEventName('before', $input, $anyState)));
(yield Event::named($this->getEventName('before', $anyInput, $anyState)));
(yield Event::named($this->getEventName('on', $anyInput, $anyState)));
(yield Event::named($this->getEventName('after', $input, $currentState)));
(yield Event::named($this->getEventName('after', $anyInput, $currentState)));
(yield Event::named($this->getEventName('after', $input, $anyState)));
(yield Event::named($this->getEventName('after', $anyInput, $anyState)));
}