izzum\statemachine\TransitionTest::shouldSetBiDirectionalReferenceOnFromStateOnlyForInitialOrNormalStates PHP Method

    public function shouldSetBiDirectionalReferenceOnFromStateOnlyForInitialOrNormalStates()
    {
        $a = new State('a', State::TYPE_INITIAL);
        $b = new State('b', State::TYPE_NORMAL);
        $c = new State('regex:/.*/', State::TYPE_REGEX);
        $d = new State('done', State::TYPE_FINAL);
        $this->assertCount(0, $a->getTransitions());
        $this->assertCount(0, $b->getTransitions());
        $this->assertCount(0, $c->getTransitions());
        $this->assertCount(0, $d->getTransitions());
        $t = new Transition($a, $b);
        $this->assertCount(1, $a->getTransitions());
        $this->assertCount(0, $b->getTransitions());
        $this->assertCount(0, $c->getTransitions());
        $this->assertCount(0, $d->getTransitions());
        $t = new Transition($b, $a);
        $this->assertCount(1, $a->getTransitions());
        $this->assertCount(1, $b->getTransitions());
        $this->assertCount(0, $c->getTransitions());
        $this->assertCount(0, $d->getTransitions());
        //no bi-directional association for 'regex' type in from state
        $t = new Transition($c, $a);
        $this->assertCount(1, $a->getTransitions());
        $this->assertCount(1, $b->getTransitions());
        $this->assertCount(0, $c->getTransitions());
        $this->assertCount(0, $d->getTransitions());
        //no bi-directional association for 'done' type in from state
        $t = new Transition($d, $a);
        $this->assertCount(1, $a->getTransitions());
        $this->assertCount(1, $b->getTransitions());
        $this->assertCount(0, $c->getTransitions());
        $this->assertCount(0, $d->getTransitions());
        //no bi-directional association for 'regex' because it is in the 'to' state
        $t = new Transition($a, $c);
        $this->assertCount(2, $a->getTransitions());
        $this->assertCount(1, $b->getTransitions());
        $this->assertCount(0, $c->getTransitions());
        $this->assertCount(0, $d->getTransitions());
        //no bi-directional association for 'done' because it is in the 'to' state
        $t = new Transition($a, $d);
        $this->assertCount(3, $a->getTransitions());
        $this->assertCount(1, $b->getTransitions());
        $this->assertCount(0, $c->getTransitions());
        $this->assertCount(0, $d->getTransitions());
    }