91 lines
3.0 KiB
JavaScript
91 lines
3.0 KiB
JavaScript
/**
|
|
* Tests the behavior of legacy $out.
|
|
*
|
|
* This test assumes that collections are not implicitly sharded, since $out is prohibited if the
|
|
* output collection is sharded.
|
|
*/
|
|
(function() {
|
|
"use strict";
|
|
|
|
load("jstests/aggregation/extras/merge_helpers.js"); // For dropWithoutImplicitRecreate.
|
|
load("jstests/aggregation/extras/utils.js"); // For assertErrorCode.
|
|
load("jstests/libs/fixture_helpers.js"); // For FixtureHelpers.isMongos.
|
|
|
|
const coll = db.source;
|
|
const targetCollName = "target";
|
|
coll.drop();
|
|
|
|
dropWithoutImplicitRecreate(targetCollName);
|
|
const pipeline = [{$out: targetCollName}];
|
|
|
|
//
|
|
// Test $out with a non-existent output collection.
|
|
//
|
|
assert.commandWorked(coll.insert({_id: 0}));
|
|
coll.aggregate(pipeline);
|
|
const targetColl = db.target;
|
|
assert.eq(1, targetColl.find().itcount());
|
|
|
|
// Test $out with a non-existent database. This is only expected to work in a
|
|
// non-sharded environment.
|
|
const destDB = db.getSiblingDB("outDifferentDB");
|
|
destDB.dropDatabase();
|
|
if (FixtureHelpers.isMongos(db)) {
|
|
assert.commandFailedWithCode(db.runCommand({
|
|
aggregate: coll.getName(),
|
|
cursor: {},
|
|
pipeline: [{$out: {db: destDB.getName(), coll: 'outDifferentColl'}}]
|
|
}),
|
|
ErrorCodes.NamespaceNotFound);
|
|
} else {
|
|
coll.aggregate({$out: {db: destDB.getName(), coll: destDB.outDifferentColl.getName()}});
|
|
assert.eq(1, destDB.outDifferentColl.find().itcount());
|
|
}
|
|
|
|
//
|
|
// Test $out with an existing output collection.
|
|
//
|
|
coll.aggregate(pipeline);
|
|
assert.eq(1, targetColl.find().itcount());
|
|
|
|
//
|
|
// Test that $out will preserve the indexes and options of the output collection.
|
|
//
|
|
dropWithoutImplicitRecreate(targetCollName);
|
|
assert.commandWorked(db.createCollection(targetColl.getName(), {validator: {a: {$gt: 0}}}));
|
|
assert.commandWorked(targetColl.createIndex({a: 1}));
|
|
|
|
coll.drop();
|
|
assert.commandWorked(coll.insert({a: 1}));
|
|
|
|
coll.aggregate(pipeline);
|
|
assert.eq(1, targetColl.find().itcount());
|
|
assert.eq(2, targetColl.getIndexes().length);
|
|
|
|
const listColl = db.runCommand({listCollections: 1, filter: {name: targetColl.getName()}});
|
|
assert.commandWorked(listColl);
|
|
assert.eq({a: {$gt: 0}}, listColl.cursor.firstBatch[0].options["validator"]);
|
|
|
|
//
|
|
// Test that $out fails if it violates a unique index constraint.
|
|
//
|
|
coll.drop();
|
|
assert.commandWorked(coll.insert([{_id: 0, a: 0}, {_id: 1, a: 0}]));
|
|
dropWithoutImplicitRecreate(targetCollName);
|
|
assert.commandWorked(targetColl.createIndex({a: 1}, {unique: true}));
|
|
|
|
assertErrorCode(coll, pipeline, ErrorCodes.DuplicateKey);
|
|
|
|
// Rerun a similar test, except populate the target collection with a document that conflics
|
|
// with one out of the pipeline. In this case, there is no unique key violation since the target
|
|
// collection will be dropped before renaming the source collection.
|
|
coll.drop();
|
|
assert.commandWorked(coll.insert({_id: 0, a: 0}));
|
|
targetColl.remove({});
|
|
assert.commandWorked(targetColl.insert({_id: 1, a: 0}));
|
|
|
|
coll.aggregate(pipeline);
|
|
assert.eq(1, targetColl.find().itcount());
|
|
assert.eq(2, targetColl.getIndexes().length);
|
|
}());
|