izzum\statemachine\TransitionTest::shouldHaveBidirectionalAssociation PHP Method

    public function shouldHaveBidirectionalAssociation()
    {
        $from = new State('a');
        $to = new State('b');
        $transition = new Transition($from, $to);
        $this->assertTrue($from->hasTransition($transition->getName()));
        $this->assertFalse($to->hasTransition($transition->getName()), 'not on an incoming transition');
    }