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// Test that the $sort stage properly errors on invalid $meta.
(function() {
"use strict";
var coll = db.sort_with_metadata;
coll.drop();
assert.writeOK(coll.insert({_id: 1, text: "apple", words: 1}));
assert.writeOK(coll.insert({_id: 2, text: "banana", words: 1}));
assert.writeOK(coll.insert({_id: 3, text: "apple banana", words: 2}));
assert.writeOK(coll.insert({_id: 4, text: "cantaloupe", words: 1}));
assert.commandWorked(coll.createIndex({text: "text"}));
assert.throws(() => coll.aggregate([
{$match: {$text: {$search: 'apple banana'}}},
{$sort: {textScore: {$meta: 'searchScore'}}}
]));
assert.throws(() => coll.aggregate([
{$match: {$text: {$search: 'apple banana'}}},
{$sort: {textScore: {$meta: 'searchHighlights'}}}
]));
assert.throws(
() => coll.aggregate(
[{$match: {$text: {$search: 'apple banana'}}}, {$sort: {textScore: {$meta: 'unknown'}}}]));
const results = [
{_id: 3, text: 'apple banana', words: 2},
{_id: 2, text: 'banana', words: 1},
{_id: 1, text: 'apple', words: 1}
];
assert.eq(results,
coll.aggregate([
{$match: {$text: {$search: 'apple banana'}}},
{$sort: {textScore: {$meta: 'textScore'}}}
])
.toArray());
assert.sameMembers(results,
coll.aggregate([
{$match: {$text: {$search: 'apple banana'}}},
{$sort: {textScore: {$meta: 'randVal'}}}
])
.toArray());
})();
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