jstests/aggregation/bugs/server6779.js


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// server 6779: serializing ExpressionCoerceToBool
// This test only fails in debug mode with the bug since that tests round-tripping
(function() {
    "use strict";

    function test(op, val) {
        const coll = db.server6779;
        coll.drop();
        assert.writeOK(coll.insert({a: true}));
        assert.writeOK(coll.insert({a: false}));

        const obj = {};
        obj[op] = ['$a', val];
        const result = coll.aggregate([{$project: {_id: 0, bool: obj}}, {$sort: {bool: -1}}]);

        assert.eq(result.toArray(), [{bool: true}, {bool: false}]);
    }
    test('$and', true);
    test('$or', false);
}());