29 lines
1003 B
JavaScript
29 lines
1003 B
JavaScript
/**
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* Tests partial inclusion/exclusion of _id.
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* See SERVER-7502 for details.
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*/
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(function() {
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"use strict";
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const coll = db.id_partial_projection;
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coll.drop();
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// Provide another field, 'sortKey' which we use to ensure the results come in the same order each
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// time.
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assert.commandWorked(coll.insert({_id: {a: 1, b: 1}, sortKey: 1}));
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assert.commandWorked(coll.insert({_id: 3, sortKey: 2}));
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function checkResults(projection, expectedResults, assertFn = assert.eq) {
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assertFn(coll.find({}, projection).sort({sortKey: 1}).toArray(), expectedResults);
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}
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checkResults({_id: 1}, [{_id: {a: 1, b: 1}}, {_id: 3}]);
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checkResults({"_id.a": 1}, [{_id: {a: 1}}, {}]);
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checkResults({"_id.b": 1}, [{_id: {b: 1}}, {}]);
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// We use docEq() for this assertion in particular because of field ordering differences between the
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// classic engine and SBE.
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checkResults({"_id.a": 0}, [{_id: {b: 1}, sortKey: 1}, {_id: 3, sortKey: 2}], assert.docEq);
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checkResults({_id: 0}, [{sortKey: 1}, {sortKey: 2}]);
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})();
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