public function testSimplifyThreePointsImpossible()
{
$polyline = new Polyline();
$polyline->addPoint(new Coordinate(10.0, 10.0));
$polyline->addPoint(new Coordinate(20.0, 20.0));
$polyline->addPoint(new Coordinate(30.0, 10.0));
$processor = new SimplifyDouglasPeucker(1000);
$simplified = $processor->simplify($polyline);
$this->assertEquals($polyline, $simplified);
}