public function testIfContainsPointCheckWorksAsExpected()
{
$polygon = new Polygon();
$polygon->addPoint(new Coordinate(10, 20));
$polygon->addPoint(new Coordinate(10, 40));
$polygon->addPoint(new Coordinate(30, 40));
$polygon->addPoint(new Coordinate(30, 20));
$point = new Coordinate(20, 30);
$this->assertTrue($polygon->contains($point));
}