public function testIfContainsPointCheckWithLatitudeSignSwitchWorksAsExpected()
{
$polygon = new Polygon();
$polygon->addPoint(new Coordinate(-30, 20));
$polygon->addPoint(new Coordinate(-30, 40));
$polygon->addPoint(new Coordinate(30, 40));
$polygon->addPoint(new Coordinate(30, 20));
$point = new Coordinate(0, 30);
$this->assertTrue($polygon->contains($point));
$point = new Coordinate(-10, 30);
$this->assertTrue($polygon->contains($point));
$point = new Coordinate(10, 30);
$this->assertTrue($polygon->contains($point));
}