Fhaculty\Graph\Tests\WalkTest::testWalkCycleInvalid PHP Method

    public function testWalkCycleInvalid()
    {
        // 1 -- 2
        $graph = new Graph();
        $v1 = $graph->createVertex(1);
        $v2 = $graph->createVertex(2);
        $e1 = $v1->createEdge($v2);
        Walk::factoryCycleFromEdges(array($e1), $v1);
    }