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// Cannot implicitly shard accessed collections because of collection existing when none expected.
// @tags: [assumes_no_implicit_collection_creation_after_drop]
// Test that expressions which make can make string comparisons respect the collation.
(function() {
"use strict";
// For testExpression() and testExpressionWithCollation().
load("jstests/aggregation/extras/utils.js");
var coll = db.collation_expressions;
coll.drop();
var results;
const caseInsensitive = {locale: "en_US", strength: 2};
const numericOrdering = {locale: "en_US", numericOrdering: true};
// Test that $cmp respects the collection-default collation.
assert.commandWorked(db.createCollection(coll.getName(), {collation: caseInsensitive}));
testExpression(coll, {$cmp: ["a", "A"]}, 0);
coll.drop();
// Test that $cmp respects the collation.
testExpressionWithCollation(coll, {$cmp: ["a", "A"]}, 0, caseInsensitive);
// Test that $eq respects the collation.
testExpressionWithCollation(coll, {$eq: ["a", "A"]}, true, caseInsensitive);
// Test that $ne respects the collation.
testExpressionWithCollation(coll, {$ne: ["a", "A"]}, false, caseInsensitive);
// Test that $lt respects the collation.
testExpressionWithCollation(coll, {$lt: ["2", "10"]}, true, numericOrdering);
// Test that $lte respects the collation.
testExpressionWithCollation(coll, {$lte: ["2", "10"]}, true, numericOrdering);
testExpressionWithCollation(coll, {$lte: ["b", "B"]}, true, caseInsensitive);
// Test that $gt respects the collation.
testExpressionWithCollation(coll, {$gt: ["2", "10"]}, false, numericOrdering);
// Test that $gte respects the collation.
testExpressionWithCollation(coll, {$gte: ["2", "10"]}, false, numericOrdering);
testExpressionWithCollation(coll, {$gte: ["b", "B"]}, true, caseInsensitive);
// Test that $in respects the collation.
testExpressionWithCollation(coll, {$in: ["A", [1, 2, "a", 3, 4]]}, true, caseInsensitive);
// Test that $indexOfArray respects the collation.
testExpressionWithCollation(
coll, {$indexOfArray: [[1, 2, "a", "b", "c", "B"], "B"]}, 3, caseInsensitive);
// Test that $indexOfBytes doesn't respect the collation.
testExpressionWithCollation(coll, {$indexOfBytes: ["12abcB", "B"]}, 5, caseInsensitive);
// Test that $indexOfCP doesn't respect the collation.
testExpressionWithCollation(coll, {$indexOfCP: ["12abcB", "B"]}, 5, caseInsensitive);
// Test that $strcasecmp doesn't respect the collation.
testExpressionWithCollation(coll, {$strcasecmp: ["100", "2"]}, -1, numericOrdering);
// Test that $setEquals respects the collation.
testExpressionWithCollation(
coll, {$setEquals: [["a", "B"], ["b", "A"]]}, true, caseInsensitive);
// Test that $setIntersection respects the collation.
results =
coll.aggregate([{$project: {out: {$setIntersection: [["a", "B", "c"], ["d", "b", "A"]]}}}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq(2, results[0].out.length);
// Test that $setUnion respects the collation.
results = coll.aggregate([{$project: {out: {$setUnion: [["a", "B", "c"], ["d", "b", "A"]]}}}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq(4, results[0].out.length);
// Test that $setDifference respects the collation.
testExpressionWithCollation(
coll, {$setDifference: [["a", "B"], ["b", "A"]]}, [], caseInsensitive);
// Test that $setIsSubset respects the collation.
testExpressionWithCollation(
coll, {$setIsSubset: [["a", "B"], ["b", "A", "c"]]}, true, caseInsensitive);
// Test that $split doesn't respect the collation.
testExpressionWithCollation(coll, {$split: ["abc", "B"]}, ["abc"], caseInsensitive);
// Test that an $and which can be optimized out respects the collation.
coll.drop();
assert.writeOK(coll.insert({_id: 1, str: "A"}));
results = coll.aggregate([{$project: {out: {$and: [{$eq: ["$str", "a"]}, {$eq: ["b", "B"]}]}}}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq(true, results[0].out);
// Test that an $and which cannot be optimized out respects the collation.
coll.drop();
assert.writeOK(coll.insert({_id: 1, str: "A", str2: "B"}));
results =
coll.aggregate([{$project: {out: {$and: [{$eq: ["$str", "a"]}, {$eq: ["$str2", "b"]}]}}}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq(true, results[0].out);
// Test that an $or which can be optimized out respects the collation.
coll.drop();
assert.writeOK(coll.insert({_id: 1, str: "A"}));
results = coll.aggregate([{$project: {out: {$or: [{$eq: ["$str", "a"]}, {$eq: ["b", "c"]}]}}}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq(true, results[0].out);
// Test that an $or which cannot be optimized out respects the collation.
coll.drop();
assert.writeOK(coll.insert({_id: 1, str: "A", str2: "B"}));
results =
coll.aggregate([{$project: {out: {$or: [{$eq: ["$str", "c"]}, {$eq: ["$str2", "b"]}]}}}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq(true, results[0].out);
// Test that $filter's subexpressions respect the collation.
testExpressionWithCollation(coll,
{
$filter: {
input: {
$cond: {
if: {$eq: ["FOO", "foo"]},
then: ["a", "b", "A", "c", "C", "d"],
else: null
}
},
as: "str",
cond: {$or: [{$eq: ["$$str", "a"]}, {$eq: ["$$str", "c"]}]}
}
},
["a", "A", "c", "C"],
caseInsensitive);
// Test that $let's subexpressions respect the collation.
testExpressionWithCollation(coll,
{
$let: {
vars: {str: {$cond: [{$eq: ["A", "a"]}, "b", "c"]}},
in : {$cond: [{$eq: ["$$str", "B"]}, "d", "e"]}
}
},
"d",
caseInsensitive);
// Test that $map's subexpressions respect the collation.
testExpressionWithCollation(
coll,
{
$map: {
input: {$cond: [{$eq: ["A", "a"]}, ["aa", "a", "AA", "b"], null]},
as: "val",
in : {$and: [{$eq: ["$$val", "aA"]}, {$eq: ["$$val", "Aa"]}]}
}
},
[true, false, true, false],
caseInsensitive);
// Test that $group stage's _id expressions respect the collation.
coll.drop();
assert.writeOK(coll.insert({_id: 1}));
results = coll.aggregate([{$group: {_id: {a: {$eq: ["a", "A"]}, b: {$eq: ["b", "B"]}}}}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq(true, results[0]._id.a);
assert.eq(true, results[0]._id.b);
// Test that $reduce's subexpressions respect the collation.
testExpressionWithCollation(
coll,
{
$reduce: {
input: {$cond: [{$eq: ["a", "A"]}, [1, 2, 3], null]},
initialValue: {$cond: [{$eq: ["a", "A"]}, {sum: 1}, {sum: 0}]},
in : {
$cond: [{$eq: ["a", "A"]}, {sum: {$add: ["$$value.sum", "$$this"]}}, {sum: 0}]
}
}
},
{sum: 7},
caseInsensitive);
// Test that $switch's subexpressions respect the collation.
coll.drop();
assert.writeOK(coll.insert({_id: 1, a: "A"}));
assert.writeOK(coll.insert({_id: 2, b: "B"}));
assert.writeOK(coll.insert({_id: 3, c: "C"}));
results = coll.aggregate([{
$project: {
out: {
$switch: {
branches: [
{case: {$eq: ["$a", "a"]}, then: "foo"},
{case: {$eq: ["$b", "b"]}, then: "bar"}
],
default: "baz"
}
}
}
}],
{collation: caseInsensitive})
.toArray();
assert.eq(3, results.length);
assert.eq("foo", results[0].out);
assert.eq("bar", results[1].out);
assert.eq("baz", results[2].out);
// Test that a $zip's subexpressions respect the collation.
coll.drop();
assert.writeOK(coll.insert({_id: 0, evens: [0, 2, 4], odds: [1, 3]}));
results = coll.aggregate([{
$project: {
out: {
$zip: {
inputs: [
{$cond: [{$eq: ["A", "a"]}, "$evens", "$odds"]},
{$cond: [{$eq: ["B", "b"]}, "$odds", "$evens"]}
],
defaults: [0, {$cond: [{$eq: ["C", "c"]}, 5, 7]}],
useLongestLength: true
}
}
}
}],
{collation: caseInsensitive})
.toArray();
assert.eq(1, results.length);
assert.eq([[0, 1], [2, 3], [4, 5]], results[0].out);
})();
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