Location\PolygonTest::testIfPerimeterCalculationWorksAsExpected PHP Method

    public function testIfPerimeterCalculationWorksAsExpected()
    {
        $polygon = new Polygon();
        $polygon->addPoint(new Coordinate(10, 10));
        $polygon->addPoint(new Coordinate(10, 20));
        $polygon->addPoint(new Coordinate(20, 20));
        $polygon->addPoint(new Coordinate(20, 10));
        // http://geographiclib.sourceforge.net/cgi-bin/Planimeter?type=polygon&rhumb=geodesic&input=10+10%0D%0A10+20%0D%0A20+20%0D%0A20+10&norm=decdegrees&option=Submit
        $this->assertEquals(4355689.472548, $polygon->getPerimeter(new Vincenty()), '', 0.01);
        $polygon = new Polygon();
        $polygon->addPoint(new Coordinate(52, 13));
        $polygon->addPoint(new Coordinate(53, 13));
        $polygon->addPoint(new Coordinate(53, 12));
        $polygon->addPoint(new Coordinate(52, 12));
        // http://geographiclib.sourceforge.net/cgi-bin/Planimeter?type=polygon&rhumb=geodesic&input=52+13%0D%0A53+13%0D%0A53+12%0D%0A52+12&norm=decdegrees&option=Submit
        $this->assertEquals(358367.809428, $polygon->getPerimeter(new Vincenty()), '', 0.01);
    }