function it_connects_a_place_to_a_transition(FactoryInterface $factory, InputArcInterface $arc, TransitionInterface $transition, PlaceInterface $place)
{
$factory->createPlace()->willReturn($place);
$factory->createTransition()->willReturn($transition);
$factory->createInputArc()->willReturn($arc);
$arc->setPlace($place)->shouldBeCalled();
$arc->setTransition($transition)->shouldBeCalled();
$arc->setWeight(2)->shouldBeCalled();
$transition->addInputArc($arc)->shouldBeCalled();
$place->addOutputArc($arc)->shouldBeCalled();
$this->beConstructedWith($factory);
$this->connect($place, $transition, 2)->shouldReturn($this);
}
/**
* Connects a place to a transition or vice-versa by an arc of the specified weight.
*
* @param NodeInterface $source
* @param NodeInterface $target
* @param integer $weight
*
* @return $this
*
* @throws \InvalidArgumentException
*/
public function connect(NodeInterface $source, NodeInterface $target, $weight = 1)
{
if ($source instanceof PlaceInterface && $target instanceof TransitionInterface) {
$arc = $this->factory->createInputArc();
$arc->setPlace($source);
$arc->setTransition($target);
} elseif ($source instanceof TransitionInterface && $target instanceof PlaceInterface) {
$arc = $this->factory->createOutputArc();
$arc->setPlace($target);
$arc->setTransition($source);
} else {
throw new \InvalidArgumentException('An arc must connect a place to a transition or vice-versa.');
}
$arc->setWeight($weight);
$source->addOutputArc($arc);
$target->addInputArc($arc);
return $this;
}
