/**
 * Test that create view only takes database IX lock.
 *
 * @tags: [uses_transactions, requires_db_locking]
 */

(function() {
"use strict";

let rst = new ReplSetTest({nodes: 1});
rst.startSet();
rst.initiate();

let db = rst.getPrimary().getDB("test");

assert.commandWorked(db.runCommand({insert: "a", documents: [{x: 1}]}));

const session = db.getMongo().startSession();
const sessionDb = session.getDatabase("test");

session.startTransaction();
// This holds a database IX lock and a collection IX lock on "a".
assert.commandWorked(sessionDb.a.insert({y: 1}));

// This only requires database IX lock.
assert.commandWorked(db.createView("view", "a", []));

assert.eq(db.view.find().toArray().length, 1);

assert.commandWorked(session.commitTransaction_forTesting());

rst.stopSet();
})();