public function testGetSignedLatitude()
{
$position = new GpsPosition();
$position->set('Latitude', 48.856578);
$this->assertEquals(48.856578, $position->getSignedLatitude());
$position = new GpsPosition();
$position->set('LatitudeRef', 'N');
$this->assertNull($position->getSignedLatitude());
$position = new GpsPosition();
$position->set('Latitude', 48.856578);
$position->set('LatitudeRef', 'N');
$this->assertEquals(48.856578, $position->getSignedLatitude());
$position = new GpsPosition();
$position->set('Latitude', 48.856578);
$position->set('LatitudeRef', 'S');
$this->assertEquals(-48.856578, $position->getSignedLatitude());
}
