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// stop allowing field inclusion in objects in expressions
load('jstests/aggregation/extras/utils.js');
c = db.s6529;
c.drop();
c.save({a: {b: {c: {d: {e: {f: {g: 19}}}}}}});
// bad project
assertErrorCode(c, {$project: {foo: {$add: [{b: 1}]}}}, 16420);
// $group shouldnt allow numeric inclusions
assertErrorCode(c, {$group: {_id: {a: 1}}}, 17390);
// but any amount of nesting in a project should work
assert.eq(c.aggregate({$project: {_id: 0, a: {b: {c: {d: {e: {f: {g: 1}}}}}}}}).toArray(),
[{a: {b: {c: {d: {e: {f: {g: 19}}}}}}}]);
assert.eq(c.aggregate({$project: {_id: 0, a: {b: {c: {d: {e: {f: 1}}}}}}}).toArray(),
[{a: {b: {c: {d: {e: {f: {g: 19}}}}}}}]);
assert.eq(c.aggregate({$project: {_id: 0, a: {b: {c: {d: {e: 1}}}}}}).toArray(),
[{a: {b: {c: {d: {e: {f: {g: 19}}}}}}}]);
assert.eq(c.aggregate({$project: {_id: 0, a: {b: {c: {d: 1}}}}}).toArray(),
[{a: {b: {c: {d: {e: {f: {g: 19}}}}}}}]);
assert.eq(c.aggregate({$project: {_id: 0, a: {b: {c: 1}}}}).toArray(),
[{a: {b: {c: {d: {e: {f: {g: 19}}}}}}}]);
assert.eq(c.aggregate({$project: {_id: 0, a: {b: 1}}}).toArray(),
[{a: {b: {c: {d: {e: {f: {g: 19}}}}}}}]);
assert.eq(c.aggregate({$project: {_id: 0, a: 1}}).toArray(),
[{a: {b: {c: {d: {e: {f: {g: 19}}}}}}}]);
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