Fhaculty\Graph\Tests\VertexTest::testRemoveInvalidEdge PHP Method

    public function testRemoveInvalidEdge()
    {
        // 2 -- 3
        $v2 = $this->graph->createVertex(2);
        $v3 = $this->graph->createVertex(3);
        $edge = $v2->createEdge($v3);
        $this->vertex->removeEdge($edge);
    }