public function testIfGetLatsWorksAsExpected()
{
$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));
$expected = [10, 10, 30, 30];
$this->assertEquals($expected, $polygon->getLats());
}