jstests/aggregation/variables/runtime_constants.js


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/*
 * Tests the behavior of runtime constants $$IS_MR and $$JS_SCOPE.
 */

(function() {
"use strict";

load('jstests/aggregation/extras/utils.js');

const coll = db.runtime_constants;
coll.drop();

assert.commandWorked(coll.insert({x: true}));

// Runtime constant $$IS_MR is unable to be retrieved by users.
assert.commandFailedWithCode(
    db.runCommand(
        {aggregate: coll.getName(), pipeline: [{$addFields: {testField: "$$IS_MR"}}], cursor: {}}),
    51144);

// Runtime constant $$JS_SCOPE is unable to be retrieved by users.
assert.commandFailedWithCode(
    db.runCommand(
        {aggregate: coll.getName(), pipeline: [{$addFields: {field: "$$JS_SCOPE"}}], cursor: {}}),
    51144);
})();