Fhaculty\Graph\Tests\Edge\EdgeBaseTest::testEdgeStartVertex PHP Method

    public function testEdgeStartVertex()
    {
        $this->assertTrue($this->edge->hasVertexStart($this->v1));
        $this->assertTrue($this->edge->hasVertexTarget($this->v2));
        $v3 = $this->graph->createVertex(3);
        $this->assertFalse($this->edge->hasVertexStart($v3));
        $this->assertFalse($this->edge->hasVertexTarget($v3));
    }