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// Tests geo near with 2 points diametrically opposite to each other
// on the equator
// First reported in SERVER-11830 as a regression in 2.5
(function() {
var t = db.geos2nearequatoropposite;
t.drop();
t.insert({loc: {type: 'Point', coordinates: [0, 0]}});
t.insert({loc: {type: 'Point', coordinates: [-1, 0]}});
t.createIndex({loc: '2dsphere'});
// upper bound for half of earth's circumference in meters
var dist = 40075000 / 2 + 1;
var nearSphereCount =
t.find({
loc: {$nearSphere: {$geometry: {type: 'Point', coordinates: [180, 0]}, $maxDistance: dist}}
}).itcount();
var nearCount =
t.find({
loc: {$near: {$geometry: {type: 'Point', coordinates: [180, 0]}, $maxDistance: dist}}
}).itcount();
var geoNearResult = t.aggregate([
{
$geoNear: {
near: {type: 'Point', coordinates: [180, 0]},
spherical: true,
distanceField: "dist",
}
},
{
$group: {
_id: null,
nResults: {$sum: 1},
maxDistance: {$max: "$distanceField"},
}
}
]).toArray();
assert.eq(2, nearSphereCount, 'unexpected document count for nearSphere');
assert.eq(2, nearCount, 'unexpected document count for near');
assert.eq(1, geoNearResult.length, `unexpected $geoNear result: ${tojson(geoNearResult)}`);
const geoNearStats = geoNearResult[0];
assert.eq(
2, geoNearStats.nResults, `unexpected document count for $geoNear: ${tojson(geoNearStats)}`);
assert.gt(dist,
geoNearStats.maxDistance,
`unexpected maximum distance in $geoNear results: ${tojson(geoNearStats)}`);
}());
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