mongodb/jstests/core/geo_s2disjoint_holes.js

// Cannot implicitly shard accessed collections because of extra shard key index in sharded
// collection.
// @tags: [assumes_no_implicit_index_creation]

//
// We should prohibit polygons with holes not bounded by their exterior shells.
//
// From spec:
//
// "For Polygons with multiple rings, the first must be the exterior ring and
// any others must be interior rings or holes."
// http://geojson.org/geojson-spec.html#polygon
//

var t = db.geo_s2disjoint_holes, coordinates =
                                     [
                                       // One square.
                                       [[9, 9], [9, 11], [11, 11], [11, 9], [9, 9]],
                                       // Another disjoint square.
                                       [[0, 0], [0, 1], [1, 1], [1, 0], [0, 0]]
                                     ],
    poly = {type: 'Polygon', coordinates: coordinates}, multiPoly = {
        type: 'MultiPolygon',
        // Multi-polygon's coordinates are wrapped in one more array.
        coordinates: [coordinates]
    };

t.drop();

jsTest.log("We're going to print some error messages, don't be alarmed.");

//
// Can't query with a polygon or multi-polygon that has a non-contained hole.
//
print(assert.throws(function() {
    t.findOne({geo: {$geoWithin: {$geometry: poly}}});
}, [], "parsing a polygon with non-overlapping holes."));

print(assert.throws(function() {
    t.findOne({geo: {$geoWithin: {$geometry: multiPoly}}});
}, [], "parsing a multi-polygon with non-overlapping holes."));

//
// Can't insert a bad polygon or a bad multi-polygon with a 2dsphere index.
//
t.createIndex({p: '2dsphere'});
assert.writeError(t.insert({p: poly}));
assert.writeError(t.insert({p: multiPoly}));

//
// Can't create a 2dsphere index when the collection contains a bad polygon or
// bad multi-polygon.
//
t.drop();
t.insert({p: poly});
res = t.createIndex({p: '2dsphere'});
assert(!res.ok, tojson(res));
assert.eq(1, t.getIndexes().length);

t.drop();
t.insert({p: multiPoly});
res = t.createIndex({p: '2dsphere'});
assert(!res.ok, tojson(res));
assert.eq(1, t.getIndexes().length);

//
// But with no index we can insert bad polygons and bad multi-polygons.
//
t.drop();
assert.writeOK(t.insert({p: poly}));
assert.writeOK(t.insert({p: multiPoly}));

t.drop();

jsTest.log("Success.");