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/**
* Tests that writes on collections clustered by _id can be rolled back.
* @tags: [
* requires_replication,
* requires_wiredtiger,
* ]
*/
(function() {
'use strict';
load('jstests/replsets/libs/rollback_test.js');
load('jstests/replsets/libs/rollback_files.js');
load("jstests/libs/uuid_util.js");
// Operations that will be present on both nodes, before the common point.
const dbName = 'test';
const collName = 'test.system.buckets.t';
const collNameShort = 'system.buckets.t';
let commonOps = (node) => {
const db = node.getDB(dbName);
assert.commandWorked(db.createCollection(collNameShort, {clusteredIndex: true}));
const coll = node.getCollection(collName);
assert.commandWorked(coll.createIndex({a: 1, b: -1}));
assert.commandWorked(coll.insert({a: 0, b: 0}));
};
// Operations that will be performed on the rollback node past the common point.
let rollbackDocs = [];
let rollbackOps = (node) => {
const coll = node.getCollection(collName);
let doc;
doc = {_id: new ObjectId(), a: 1, b: 3};
assert.commandWorked(coll.insert(doc));
rollbackDocs.push(doc);
doc = {_id: new ObjectId(), a: 2, b: 2};
assert.commandWorked(coll.insert(doc));
rollbackDocs.push(doc);
doc = {_id: new ObjectId(), a: 3, b: 1};
assert.commandWorked(coll.insert(doc));
rollbackDocs.push(doc);
};
// Set up Rollback Test.
const rollbackTest = new RollbackTest();
commonOps(rollbackTest.getPrimary());
const rollbackNode = rollbackTest.transitionToRollbackOperations();
rollbackOps(rollbackNode);
// Wait for rollback to finish.
rollbackTest.transitionToSyncSourceOperationsBeforeRollback();
rollbackTest.transitionToSyncSourceOperationsDuringRollback();
rollbackTest.transitionToSteadyStateOperations();
// Check collection count.
const primary = rollbackTest.getPrimary();
const coll = primary.getCollection(collName);
assert.eq(1, coll.find().itcount());
assert.eq(1, coll.count());
// Confirm that the rollback wrote deleted documents to a file.
const replTest = rollbackTest.getTestFixture();
const uuid = getUUIDFromListCollections(rollbackTest.getPrimary().getDB(dbName), collNameShort);
checkRollbackFiles(replTest.getDbPath(rollbackNode), collName, uuid, rollbackDocs);
rollbackTest.stop();
})();
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