Files
mongo/jstests/aggregation/expressions/reverseArray.js
James Bronsted 95b4794340 SERVER-94150 switch to v5 clang-format, reformat server (#34018)
GitOrigin-RevId: ff6b2194e3617a338d83597d96710b1b92a18940
2025-04-10 03:09:33 +00:00

92 lines
3.0 KiB
JavaScript

import "jstests/libs/query/sbe_assert_error_override.js";
import {assertErrorCode} from "jstests/aggregation/extras/utils.js";
var coll = db.reverseArray;
coll.drop();
// We need a document to flow through the pipeline, even though we don't care what fields it
// has.
coll.insert({
nullField: null,
undefField: undefined,
embedded: [[1, 2], [3, 4]],
singleElem: [1],
normal: [1, 2, 3],
num: 1,
empty: []
});
assertErrorCode(coll, [{$project: {reversed: {$reverseArray: 1}}}], 34435);
assertErrorCode(coll, [{$project: {reversed: {$reverseArray: "$num"}}}], 34435);
var res = coll.aggregate([{$project: {reversed: {$reverseArray: {$literal: [1, 2]}}}}]);
var output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, [2, 1]);
res = coll.aggregate([{$project: {reversed: {$reverseArray: {$literal: [[1, 2]]}}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, [[1, 2]]);
res = coll.aggregate([{$project: {reversed: {$reverseArray: "$notAField"}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, null);
res = coll.aggregate([{$project: {reversed: {$reverseArray: {$literal: [[1, 2], [3, 4]]}}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, [[3, 4], [1, 2]]);
res = coll.aggregate([{$project: {reversed: {$reverseArray: "$embedded"}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, [[3, 4], [1, 2]]);
res = coll.aggregate([{$project: {reversed: {$reverseArray: {$literal: null}}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, null);
res = coll.aggregate([{$project: {reversed: {$reverseArray: "$nullField"}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, null);
res = coll.aggregate([{$project: {reversed: {$reverseArray: {$literal: undefined}}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, null);
res = coll.aggregate([{$project: {reversed: {$reverseArray: "$undefField"}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, null);
res = coll.aggregate([{$project: {reversed: {$reverseArray: {$literal: [1]}}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, [1]);
res = coll.aggregate([{$project: {reversed: {$reverseArray: "$singleElem"}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, [1]);
res = coll.aggregate([{$project: {reversed: {$reverseArray: "$normal"}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, [3, 2, 1]);
res = coll.aggregate([{$project: {reversed: {$reverseArray: {$literal: []}}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, []);
res = coll.aggregate([{$project: {reversed: {$reverseArray: "$empty"}}}]);
output = res.toArray();
assert.eq(1, output.length);
assert.eq(output[0].reversed, []);