public function testGetDistanceZero()
{
$coordinate1 = new Coordinate(52.5, 13.5, $this->ellipsoid);
$coordinate2 = new Coordinate(52.5, 13.5, $this->ellipsoid);
$calculator = new Vincenty();
$distance = $calculator->getDistance($coordinate1, $coordinate2);
$this->assertEquals(0.0, $distance);
}