$lat = 0;
$lng = 0;
$zoom = 0;
$pix = GMapCoord::fromLatToPix($lat, $zoom);
$t->is($pix, 128, 'Latitude 0 is at the middle of the map for zoom 0');
$pix = GMapCoord::fromLngToPix($lng, $zoom);
$t->is($pix, 128, 'Longitude 0 is at the middle of the map for zoom 0');
$lat = 0;
$lng = -180;
$zoom = 12;
$pix = GMapCoord::fromLatToPix($lat, $zoom);
$t->is($pix, 256 * pow(2, $zoom - 1), 'Latitude 0 is at the middle of the map whatever the zoom');
$pix = GMapCoord::fromLngToPix($lng, $zoom);
$t->is($pix, 0, 'Longitude -180 is at the left of the map whathever the zoom');
$coord_paris = new GMapCoord(48.857939, 2.346611);
$coord_le_mans = new GMapCoord(48.007381, 0.202131);
$t->is(round(GMapCoord::distance($coord_le_mans, $coord_paris)), 257, 'Approximate distance between Le Mans and Paris is 257');
$t->is(round(GMapCoord::exactDistance($coord_le_mans, $coord_paris), 4), 184.5783, 'Approximate distance between Le Mans and Paris is 257');
$t->is(round(GMapCoord::exactDistanceSLC($coord_le_mans, $coord_paris), 4), 184.3091, 'Approximate distance between Le Mans and Paris is 257');
$coord_luxembourg = new GMapCoord(48.846559, 2.340689);
$coord_saint_michel = new GMapCoord(48.853717, 2.344015);
$t->is(round(GMapCoord::distance($coord_luxembourg, $coord_saint_michel) * 1000), 879, 'Approximate distance between RER Luxembourg and Saint-Michel is 879 meters');
$t->is(round(GMapCoord::exactDistance($coord_luxembourg, $coord_saint_michel) * 1000, 4), 833.4828, 'Approximate distance between RER Luxembourg and Saint-Michel is 879 meters');
$t->is(round(GMapCoord::exactDistanceSLC($coord_luxembourg, $coord_saint_michel) * 1000, 4), 832.2670000000001, 'Approximate distance between RER Luxembourg and Saint-Michel is 879 meters');
$coord_luxembourg = new GMapCoord(48.846559, 2.340689);
$coord_saint_michel = new GMapCoord(48.853717, 2.344015);
$center_of_the_world = new GMapCoord(0, 0);
$bounds_paris = GMapBounds::createFromString('((48.791033113791144, 2.2240447998046875), (48.926559723513435, 2.4300384521484375))');
$t->ok($coord_saint_michel->isInsideBounds($bounds_paris), 'Saint-Michel Notre-Dame is in Paris');
$t->ok($coord_luxembourg->isInsideBounds($bounds_paris), 'RER Luxembourg is in Paris');
$t->ok(!$center_of_the_world->isInsideBounds($bounds_paris), 'Center of the world is not in Paris (amazingly)');
