/* SERVER-56756 Ensure that during a stepDown operation we fassert when
 * getting the RSTL takes longer than fassertOnLockTimeoutForStepUpDown seconds
 *
 * 1. Start up a 3 node replica set
 * 2. Enable failpoint hangWithLockDuringBatchInsert
 * 3. Do one write in the background which, due to the failpoint, will hang
 *    after getting locks including RSTL
 * 4. Send in the background request to the PRIMARY to StepDown.
 *    stepDown thread will timeout since it cant get RSTL, and will catch
 *    ErrorCodes::LockTimeout and caus an fassert (node crash) on the primary
 *    [since deadline is beyond the RSTL fassert timeout].
 * 5. Make sure that primary node is down and that another has stepedUp
 *
 * @tags: [
 *   requires_fcv_50
 * ]
 */

(function() {
"use strict";

load("jstests/libs/write_concern_util.js");
load("jstests/libs/fail_point_util.js");

var name = "interruptStepDown";
var replSet = new ReplSetTest({name: name, nodes: 3});
var nodes = replSet.nodeList();
replSet.startSet();
replSet.initiate({
    "_id": name,
    "members": [
        {"_id": 0, "host": nodes[0]},
        {"_id": 1, "host": nodes[1]},
        {"_id": 2, "host": nodes[2], "priority": 0}
    ]
});

replSet.waitForState(replSet.nodes[0], ReplSetTest.State.PRIMARY);

var primary = replSet.getPrimary();
var secondary = replSet.getSecondary();
assert.eq(primary.host, nodes[0], "primary assumed to be node 0");
assert.commandWorked(primary.adminCommand(
    {setDefaultRWConcern: 1, defaultWriteConcern: {w: 1}, writeConcern: {w: "majority"}}));
replSet.awaitReplication();

// Makes sure writes work
assert.commandWorked(primary.getDB(name).foo.insert([{_id: 0}, {_id: 1}, {_id: 2}]));

// Enable failpoint which waits after getting locks
let failPoint =
    configureFailPoint(primary.getDB(name),
                       "hangWithLockDuringBatchInsert",
                       {shouldCheckForInterrupt: false, shouldContinueOnInterrupt: false});

jsTestLog("Initiating write which will hang on failpoint");
var bgInserter = startParallelShell(
    "db.getSiblingDB('interruptStepDown').foo.insert([{_id:0}, {_id:1}, {_id:2}]);", primary.port);

jsTestLog("Wait for failpoint after bgwrite and before asking the PRIMARY to stepdown");
failPoint.wait();

var stepDownCmd = function() {
    jsTestLog("Sending stepdown to primary");
    db.getSiblingDB('admin').runCommand({replSetStepDown: 20, force: true});
};
var stepDowner = startParallelShell(stepDownCmd, primary.port);

jsTestLog("Waiting for primary to be down");
replSet.waitForState(primary, ReplSetTest.State.DOWN);

jsTestLog("Make sure there is a new primary");
var newprimary = replSet.getPrimary();
assert(primary != newprimary);

stepDowner({checkExitSuccess: false});
bgInserter({checkExitSuccess: false});

// We expect primary to have crashed with an fassert.
replSet.stop(
    primary.nodeId, undefined, {forRestart: false, allowedExitCode: MongoRunner.EXIT_ABORT});
replSet.stopSet();
})();
