Fhaculty\Graph\Tests\TestCase::getEdgeDump PHP Method

    private function getEdgeDump(Edge $edge)
    {
        $ret = get_class($edge) . ' ';
        if ($edge instanceof Directed) {
            $ret .= $edge->getVertexStart()->getId() . ' -> ' . $edge->getVertexEnd()->getId();
        } else {
            $vertices = $edge->getVertices()->getIds();
            $ret .= $vertices[0] . ' -- ' . $vertices[1];
        }
        $ret .= PHP_EOL . 'flow: ' . $edge->getFlow();
        $ret .= PHP_EOL . 'capacity: ' . $edge->getCapacity();
        $ret .= PHP_EOL . 'weight: ' . $edge->getWeight();
        $ret .= PHP_EOL . 'attributes: ' . json_encode($edge->getAttributeBag()->getAttributes());
        return $ret;
    }