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// Tests to verify the behavior of find command's project in the presence of collation.
//
// @tags: [
// assumes_no_implicit_collection_creation_after_drop,
// requires_fcv_60,
// ]
(function() {
'use strict';
const collation = {
locale: "en_US",
strength: 2
};
const withCollationCollName = jsTestName() + "_collation";
const noCollationCollName = jsTestName() + "_noCollation";
function setupCollection(withCollation) {
const insertCollName = withCollation ? withCollationCollName : noCollationCollName;
db[insertCollName].drop();
if (withCollation) {
assert.commandWorked(db.createCollection(insertCollName, {collation: withCollation}));
}
const insertColl = db[insertCollName];
assert.commandWorked(insertColl.insert(
{_id: 0, str: "a", array: [{str: "b"}, {str: "A"}, {str: "B"}, {str: "a"}]}));
assert.commandWorked(insertColl.insert({_id: 1, str: "a", elemMatch: [{str: "A"}, "ignored"]}));
assert.commandWorked(insertColl.insert({_id: 2, str: "A", elemMatch: ["ignored", {str: "a"}]}));
assert.commandWorked(insertColl.insert({_id: 3, str: "B"}));
return insertColl;
}
function runQueryWithCollation(testColl, collationToUse) {
let findCmd =
testColl.find({str: 'A', elemMatch: {$elemMatch: {str: "a"}}}, {_id: 1, 'elemMatch.$': 1});
if (collationToUse) {
findCmd = findCmd.collation(collationToUse);
}
const elemMatchOutput = findCmd.toArray();
assert.sameMembers(elemMatchOutput,
[{_id: 1, elemMatch: [{str: "A"}]}, {_id: 2, elemMatch: [{str: "a"}]}]);
findCmd =
testColl.find({str: 'A'}, {sortedArray: {$sortArray: {input: "$array", sortBy: {str: 1}}}});
if (collationToUse) {
findCmd = findCmd.collation(collationToUse);
}
const sortArrayOutput = findCmd.toArray();
assert.sameMembers(sortArrayOutput, [
{_id: 0, sortedArray: [{str: "A"}, {str: "a"}, {str: "b"}, {str: "B"}]},
{_id: 1, sortedArray: null},
{_id: 2, sortedArray: null}
]);
const findAndUpdateOutput = testColl.findAndModify({
query: {_id: 1, str: 'A', elemMatch: {$elemMatch: {str: "a"}}},
fields: {_id: 1, 'elemMatch.$': 1, updated: 1},
update: {$set: {updated: true}},
collation: collationToUse
});
assert.docEq(findAndUpdateOutput, {_id: 1, elemMatch: [{str: "A"}]});
const findAndUpdateWithSortArrayOutput = testColl.findAndModify({
query: {_id: 0, str: 'A'},
fields: {_id: 1, str: 1, sortedArray: {$sortArray: {input: "$array", sortBy: {str: 1}}}},
update: {$set: {updated: true}},
collation: collationToUse,
new: true
});
assert.docEq(findAndUpdateWithSortArrayOutput,
{_id: 0, str: "a", sortedArray: [{str: "A"}, {str: "a"}, {str: "b"}, {str: "B"}]});
const findAndRemoveOutput = testColl.findAndModify({
query: {_id: 1, str: 'A', elemMatch: {$elemMatch: {str: "a"}}},
fields: {_id: 1, 'elemMatch.$': 1, updated: 1},
remove: true,
collation: collationToUse,
});
assert.docEq(findAndRemoveOutput, {_id: 1, elemMatch: [{str: "A"}], updated: true});
const findAndRemoveWithSortArrayOutput = testColl.findAndModify({
query: {_id: 0, str: 'A'},
fields: {_id: 1, str: 1, sortedArray: {$sortArray: {input: "$array", sortBy: {str: 1}}}},
remove: true,
collation: collationToUse
});
assert.docEq(findAndRemoveWithSortArrayOutput,
{_id: 0, str: "a", sortedArray: [{str: "A"}, {str: "a"}, {str: "b"}, {str: "B"}]});
}
// The output for the below two tests should not depend on the collection level collation.
let collWithCollation = setupCollection({locale: "en_US"});
runQueryWithCollation(collWithCollation, collation);
let noCollationColl = setupCollection(false);
runQueryWithCollation(noCollationColl, collation);
// Tests to verify that the projection code inherits collection level collation in the absence of
// query level collation.
collWithCollation = setupCollection(collation);
runQueryWithCollation(collWithCollation, null);
// The output of this should not depend on the collection level collation and simple collation
// should be applied always.
function queryWithSimpleCollation(testColl) {
const elemMatchOutput =
testColl.find({str: 'A', elemMatch: {$elemMatch: {str: "a"}}}, {_id: 1, 'elemMatch.$': 1})
.collation({locale: "simple"})
.toArray();
assert.sameMembers(elemMatchOutput, [{_id: 2, elemMatch: [{str: "a"}]}]);
const sortArrayOutput =
testColl.find({str: 'a'}, {sortedArray: {$sortArray: {input: "$array", sortBy: {str: 1}}}})
.collation({locale: "simple"})
.toArray();
assert.sameMembers(sortArrayOutput, [
{_id: 0, sortedArray: [{str: "A"}, {str: "B"}, {str: "a"}, {str: "b"}]},
{_id: 1, sortedArray: null}
]);
// Test findAndModify command with 'update'. Ensure that simple collation is always honored.
const findAndUpdateOutput = testColl.findAndModify({
query: {str: 'A', elemMatch: {$elemMatch: {str: "a"}}},
fields: {_id: 1, 'elemMatch.$': 1, updated: 1},
update: {$set: {updated: true}},
collation: {locale: "simple"}
});
assert.docEq(findAndUpdateOutput, {_id: 2, elemMatch: [{str: "a"}]});
const findAndUpdateWithSortArrayOutput = testColl.findAndModify({
query: {_id: 0, str: 'a'},
fields: {_id: 1, str: 1, sortedArray: {$sortArray: {input: "$array", sortBy: {str: 1}}}},
update: {$set: {updated: true}},
collation: {locale: "simple"},
new: true
});
assert.docEq(findAndUpdateWithSortArrayOutput,
{_id: 0, str: "a", sortedArray: [{str: "A"}, {str: "B"}, {str: "a"}, {str: "b"}]});
// Test findAndModify command with remove:true. Ensure that simple collation is always honored.
const findAndRemoveOutput = testColl.findAndModify({
query: {_id: 2, str: 'A', elemMatch: {$elemMatch: {str: "a"}}},
fields: {_id: 1, 'elemMatch.$': 1, updated: 1},
remove: true,
collation: {locale: "simple"},
});
assert.docEq(findAndRemoveOutput, {_id: 2, elemMatch: [{str: "a"}], updated: true});
const findAndRemoveWithSortArrayOutput = testColl.findAndModify({
query: {_id: 0, str: 'a'},
fields: {_id: 1, str: 1, sortedArray: {$sortArray: {input: "$array", sortBy: {str: 1}}}},
remove: true,
collation: {locale: "simple"}
});
assert.docEq(findAndRemoveWithSortArrayOutput,
{_id: 0, str: "a", sortedArray: [{str: "A"}, {str: "B"}, {str: "a"}, {str: "b"}]});
}
noCollationColl = setupCollection(false);
queryWithSimpleCollation(noCollationColl);
collWithCollation = setupCollection(collation);
queryWithSimpleCollation(collWithCollation);
// Test with views.
(function viewWithCollation() {
collWithCollation = setupCollection(collation);
db[jsTestName() + "_view"].drop();
assert.commandWorked(
db.createView(jsTestName() + "_view", withCollationCollName, [], {collation: collation}));
const viewColl = db[jsTestName() + "_view"];
const sortArrayOutput =
viewColl.find({str: 'A'}, {sortedArray: {$sortArray: {input: "$array", sortBy: {str: 1}}}})
.toArray();
assert.sameMembers(sortArrayOutput, [
{_id: 0, sortedArray: [{str: "A"}, {str: "a"}, {str: "b"}, {str: "B"}]},
{_id: 1, sortedArray: null},
{_id: 2, sortedArray: null}
]);
})();
})();
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