if (!jsTest.options().storageEngine || jsTest.options().storageEngine === "wiredTiger") {
    var baseDir = "jstests_per_db_and_split_c_and_i";
    var dbpath = MongoRunner.dataPath + baseDir + "/";

    var m = MongoRunner.runMongod(
        {dbpath: dbpath, wiredTigerDirectoryForIndexes: '', directoryperdb: ''});
    db = m.getDB("foo");
    db.bar.insert({x: 1});
    assert.eq(1, db.bar.count());

    db.adminCommand({fsync: 1});

    assert(listFiles(dbpath + "/foo/index").length > 0);
    assert(listFiles(dbpath + "/foo/collection").length > 0);

    MongoRunner.stopMongod(m);

    // Subsequent attempts to start server using same dbpath but different
    // wiredTigerDirectoryForIndexes and directoryperdb options should fail.
    assert.throws(() => MongoRunner.runMongod({dbpath: dbpath, port: m.port, restart: true}));
    assert.throws(() => MongoRunner.runMongod(
                      {dbpath: dbpath, port: m.port, restart: true, directoryperdb: ''}));
    assert.throws(
        () => MongoRunner.runMongod(
            {dbpath: dbpath, port: m.port, restart: true, wiredTigerDirectoryForIndexes: ''}));
}