50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
/*
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* SERVER-6147 : aggregation $ne expression applied to constant returns incorrect result.
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*
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* This test validates the SERVER-6147 ticket. Return true when comparing a constant to a field
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* containing a different value using $ne. Previously it would return false when comparing a
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* constant and a field regardless of whether they were equal or not.
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*/
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(function() {
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"use strict";
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db.s6147.drop();
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assert.commandWorked(db.s6147.insert({a: 1}));
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assert.commandWorked(db.s6147.insert({a: 2}));
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// Aggregate checking various combinations of the constant and the field.
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const cursor = db.s6147.aggregate([
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{$sort: {a: 1}},
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{
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$project: {
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_id: 0,
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constantAndField: {$ne: [1, "$a"]},
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fieldAndConstant: {$ne: ["$a", 1]},
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constantAndConstant: {$ne: [1, 1]},
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fieldAndField: {$ne: ["$a", "$a"]}
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}
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}
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]);
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// In both documents, the constantAndConstant and fieldAndField should be false since they
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// compare something with itself. However, the constantAndField and fieldAndConstant should be
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// different as document one contains 1 which should return false and document 2 contains
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// something different so should return true.
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const expected = [
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{
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constantAndField: false,
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fieldAndConstant: false,
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constantAndConstant: false,
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fieldAndField: false
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},
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{
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constantAndField: true,
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fieldAndConstant: true,
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constantAndConstant: false,
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fieldAndField: false
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}
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];
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assert.eq(cursor.toArray(), expected);
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}());
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