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// Tests for $natural sort and $natural hint.
(function() {
'use strict';
var results;
var coll = db.jstests_natural;
coll.drop();
assert.commandWorked(coll.ensureIndex({a: 1}));
assert.writeOK(coll.insert({_id: 1, a: 3}));
assert.writeOK(coll.insert({_id: 2, a: 2}));
assert.writeOK(coll.insert({_id: 3, a: 1}));
// Regression test for SERVER-20660. Ensures that documents returned with $natural don't have
// any extraneous fields.
results = coll.find({a: 2}).sort({$natural: 1}).toArray();
assert.eq(results.length, 1);
assert.eq(results[0], {_id: 2, a: 2});
// Regression test for SERVER-20660. Ensures that documents returned with $natural don't have
// any extraneous fields.
results = coll.find({a: 2}).hint({$natural: -1}).toArray();
assert.eq(results.length, 1);
assert.eq(results[0], {_id: 2, a: 2});
})();
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