Pop\Image\Svg::setStrokeWidth PHP Метод

    public function setStrokeWidth($wid = null, $dash_len = null, $dash_gap = null)
    {
        if (null === $wid || $wid == false || $wid == 0) {
            $this->strokeWidth = null;
            $this->strokeDashLength = null;
            $this->strokeDashGap = null;
        } else {
            $this->strokeWidth = $wid;
            $this->strokeDashLength = $dash_len;
            $this->strokeDashGap = $dash_gap;
        }
        return $this;
    }

 public function testBorder()
 {
     $s = new Svg('graph.svg', '640px', '480px');
     $s->setStrokeWidth(5, 6, 4);
     $s->border(5);
     $this->assertEquals(640, $s->getWidth());
 }