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/**
* Test the set expressions.
*/
(function() {
"use strict";
load("jstests/aggregation/extras/utils.js"); // For assertErrorCode.
load('jstests/libs/sbe_assert_error_override.js'); // Override error-code-checking APIs.
const coll = db.expression_set;
coll.drop();
assert.commandWorked(coll.insert([
{_id: 0, arr1: [1, 2, 3], arr2: [2, 3, 4]},
{_id: 1, arr1: [1, 2, 3], arr2: [4, 5, 6]},
{_id: 2, arr1: [1, 2, 3], arr2: []},
{_id: 3, arr1: [], arr2: [4, 5, 6]},
{_id: 4, arr1: [1, 2, 3], arr2: [2, 3]},
{_id: 5, arr1: [2, 3], arr2: [2, 3, 4]},
{_id: 6, arr1: [1, 2, 3], arr2: [1, 2, 3]},
{_id: 7, arr1: [1, 2, 3], arr2: [1, 1, 2, 2, 3, 3]},
]));
// The order of the output array elements is undefined for $setUnion, $setDifference and
// $setIntersection expressions. Hence we do a sort operation to get a consistent order.
const sortSetFields = doc => {
let result = {};
for (const key in doc) {
if (doc.hasOwnProperty(key)) {
const value = doc[key];
result[key] = Array.isArray(value) ? value.sort() : value;
}
}
return result;
};
const runTest = function(pipeline, expectedResult) {
pipeline.push({$sort: {_id: 1}});
const result = coll.aggregate(pipeline).toArray();
assert.eq(expectedResult, result.map(sortSetFields));
};
runTest(
[{$project: {union: {$setUnion: ["$arr1", "$arr2"]}}}],
[
{_id: 0, union: [1, 2, 3, 4]},
{_id: 1, union: [1, 2, 3, 4, 5, 6]},
{_id: 2, union: [1, 2, 3]},
{_id: 3, union: [4, 5, 6]},
{_id: 4, union: [1, 2, 3]},
{_id: 5, union: [2, 3, 4]},
{_id: 6, union: [1, 2, 3]},
{_id: 7, union: [1, 2, 3]},
],
);
runTest(
[{$project: {intersection: {$setIntersection: ["$arr1", "$arr2"]}}}],
[
{_id: 0, intersection: [2, 3]},
{_id: 1, intersection: []},
{_id: 2, intersection: []},
{_id: 3, intersection: []},
{_id: 4, intersection: [2, 3]},
{_id: 5, intersection: [2, 3]},
{_id: 6, intersection: [1, 2, 3]},
{_id: 7, intersection: [1, 2, 3]},
],
);
runTest(
[{$project: {difference: {$setDifference: ["$arr1", "$arr2"]}}}],
[
{_id: 0, difference: [1]},
{_id: 1, difference: [1, 2, 3]},
{_id: 2, difference: [1, 2, 3]},
{_id: 3, difference: []},
{_id: 4, difference: [1]},
{_id: 5, difference: []},
{_id: 6, difference: []},
{_id: 7, difference: []},
],
);
runTest(
[{$project: {difference: {$setDifference: ["$arr2", "$arr1"]}}}],
[
{_id: 0, difference: [4]},
{_id: 1, difference: [4, 5, 6]},
{_id: 2, difference: []},
{_id: 3, difference: [4, 5, 6]},
{_id: 4, difference: []},
{_id: 5, difference: [4]},
{_id: 6, difference: []},
{_id: 7, difference: []},
],
);
runTest(
[{$project: {equals: {$setEquals: ["$arr1", "$arr2"]}}}],
[
{_id: 0, equals: false},
{_id: 1, equals: false},
{_id: 2, equals: false},
{_id: 3, equals: false},
{_id: 4, equals: false},
{_id: 5, equals: false},
{_id: 6, equals: true},
{_id: 7, equals: true},
],
);
runTest(
[{$project: {isSubset: {$setIsSubset: ["$arr1", "$arr2"]}}}],
[
{_id: 0, isSubset: false},
{_id: 1, isSubset: false},
{_id: 2, isSubset: false},
{_id: 3, isSubset: true},
{_id: 4, isSubset: false},
{_id: 5, isSubset: true},
{_id: 6, isSubset: true},
{_id: 7, isSubset: true},
],
);
// No sets to union should produce an empty set for all records so we only check the first one.
assert.eq(coll.aggregate([{$project: {x: {$setUnion: []}}}]).toArray()[0]['x'], []);
// No sets to intersect should produce an empty set for all records so we only check the first one.
assert.eq(coll.aggregate([{$project: {x: {$setIntersection: []}}}]).toArray()[0]['x'], []);
const operators = [
["$setUnion", 17043],
["$setIntersection", 17047],
["$setDifference", [17048, 17049]],
["$setEquals", 17044],
["$setIsSubset", [17042, 17046]]
];
const badDocuments = [
{arr1: "123", arr2: [1, 2, 3]},
{arr1: [1, 2, 3], arr2: "123"},
{arr1: "123", arr2: "123"},
];
for (const [operator, errorCodes] of operators) {
for (const badDocument of badDocuments) {
assert(coll.drop());
assert.commandWorked(coll.insertOne(badDocument));
assertErrorCode(coll, [{$project: {output: {[operator]: ["$arr1", "$arr2"]}}}], errorCodes);
}
}
}());
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