mongo/jstests/readonly/temp_collection.js

/**
 * Tests that the server is able to restart in read-only mode with data files that contain one or
 * more temporary collections. The temporary collection will be dropped during startup recovery.
 *
 * @tags: [requires_replication]
 */
import {runReadOnlyTest} from "jstests/readonly/lib/read_only_test.js";

runReadOnlyTest(
    (function () {
        return {
            name: "temp_collection",

            load: function (collection) {
                let collName = collection.getName();
                let db = collection.getDB();
                db[collName].drop();

                assert.commandWorked(
                    db.runCommand({
                        applyOps: [{op: "c", ns: db.getName() + ".$cmd", o: {create: collName, temp: true}}],
                    }),
                );

                let collectionInfos = db.getCollectionInfos();
                let collectionExists = false;
                collectionInfos.forEach((info) => {
                    if (info.name === collName) {
                        assert(
                            info.options.temp,
                            "The collection is not marked as a temporary one\n" + tojson(collectionInfos),
                        );
                        collectionExists = true;
                    }
                });
                assert(collectionExists, "Can not find collection in collectionInfos");
                assert.commandWorked(collection.insert({a: 1}));
            },

            exec: function (collection) {
                // Temporary collections are dropped during startup recovery.
                let collName = collection.getName();
                let db = collection.getDB();

                let collectionInfos = db.getCollectionInfos();
                let collectionExists = false;
                collectionInfos.forEach((info) => {
                    if (info.name === collName) {
                        collectionExists = true;
                    }
                });

                assert(!collectionExists);
            },
        };
    })(),
);