/**
 * Tests that rollback corrects fastcounts even when collections are renamed.
 */
(function() {
"use strict";

load("jstests/replsets/libs/rollback_test.js");

const testName = "rollback_rename_count";
const dbName = testName;

const rollbackTest = new RollbackTest(testName);
const primary = rollbackTest.getPrimary();
const testDb = primary.getDB(dbName);

// This collection is non-empty at the stable timestamp.
const fromCollName1 = "fromCollName1";
const toCollName1 = "toCollName1";
let coll1 = testDb.getCollection(fromCollName1);
assert.commandWorked(coll1.insert({a: 1}));

rollbackTest.awaitLastOpCommitted();
assert.commandWorked(
    primary.adminCommand({configureFailPoint: 'disableSnapshotting', mode: 'alwaysOn'}));

assert.commandWorked(coll1.renameCollection(toCollName1));
coll1 = testDb.getCollection(toCollName1);
assert.commandWorked(coll1.insert({b: 1}));

// This collection is empty at the stable timestamp.
const fromCollName2 = "fromCollName2";
const toCollName2 = "toCollName2";
let coll2 = testDb.getCollection(fromCollName2);
assert.commandWorked(coll2.insert({c: 1}));
assert.commandWorked(coll2.renameCollection(toCollName2));
coll2 = testDb.getCollection(toCollName2);
assert.commandWorked(coll2.insert({d: 1}));

rollbackTest.transitionToRollbackOperations();

assert.commandWorked(coll1.insert({e: 1}));

assert.eq(coll1.find().itcount(), 3);
assert.eq(coll2.find().itcount(), 2);

rollbackTest.transitionToSyncSourceOperationsBeforeRollback();
rollbackTest.transitionToSyncSourceOperationsDuringRollback();
try {
    rollbackTest.transitionToSteadyStateOperations();
} finally {
    assert.commandWorked(
        primary.adminCommand({configureFailPoint: 'disableSnapshotting', mode: 'off'}));
}

assert.eq(coll1.find().itcount(), 2);
assert.eq(coll2.find().itcount(), 2);

rollbackTest.stop();
})();