public function testLineStringFromObjectsToArray()
 {
     $expected = array(array(0, 0), array(1, 1), array(2, 2), array(3, 3));
     $lineString = new LineString(array(new Point(0, 0), new Point(1, 1), new Point(2, 2), new Point(3, 3)));
     $this->assertCount(4, $lineString->getPoints());
     $this->assertEquals($expected, $lineString->toArray());
 }