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Diffstat (limited to 'jstests/aggregation/expressions/collation_expressions.js')
| -rw-r--r-- | jstests/aggregation/expressions/collation_expressions.js | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/jstests/aggregation/expressions/collation_expressions.js b/jstests/aggregation/expressions/collation_expressions.js index 5ecad4f02ec..c9643d49506 100644 --- a/jstests/aggregation/expressions/collation_expressions.js +++ b/jstests/aggregation/expressions/collation_expressions.js @@ -86,6 +86,19 @@ results = coll.aggregate([{$project: {out: {$setUnion: [["a", "B", "c"], ["d", " assert.eq(1, results.length); assert.eq(4, results[0].out.length); +// Test that $setUnion is not commutative when a collation is set. A non-const value is required for +// reordering to occur. +assert(coll.drop); +coll.drop(); +assert.commandWorked(coll.insert({_id: 1, upper: "A", lower: "a"})); +var results1 = coll.aggregate([{$project: {out: {$setUnion: [["$upper"], ["a"]]}}}], + {collation: caseInsensitive}) + .toArray(); +var results2 = coll.aggregate([{$project: {out: {$setUnion: [["A"], ["$lower"]]}}}], + {collation: caseInsensitive}) + .toArray(); +assert.eq(results1, results2); + // Test that $setDifference respects the collation. testExpressionWithCollation(coll, {$setDifference: [["a", "B"], ["b", "A"]]}, [], caseInsensitive); |