Node.js Mocha单元测试错误re: Mockgoose模拟猫鼬，“错误设置集合上的TTL索引:会话”

Question

在开发这个开源应用程序时，GitHub上的outrightmental/partybot-web.git构建在达夫特蒙强大的约曼角满叠生成器之上。

我一直试图将我的技能集中在Node.js测试(本地和CI)期间进行Node.js模拟的当代热点问题上。

我喜欢摩卡咖啡运行，印度茶喜欢断言。在淘汰了许多早期竞争者之后，我现在正在尝试用莫克鹅代替MongoDB来模仿猫鼬模型。

还请参阅与此问题相关的构建，在我的开放源码Travis上的partybot web CI中

到目前为止，这个配置已经成功地运行了一些数据库操作，这证明了Mockgoose并不是完全浪费时间。然而，这个“会话”表似乎在阻碍它。

请参阅下面的本地执行示例(Ubuntu 12)，并告诉我是否有任何节点向导有智慧之珠.

非常感谢！-Nick

nick@om-ultrabook-ubuntu:~/Development/partybot-web$ mocha test/server/api/incoming/sms.js 
  info  - socket.io started
    Express server listening on port 3000 in development mode
Error: Error setting TTL index on collection : sessions
  at /home/nick/Development/partybot-web/node_modules/connect-mongo/lib/connect-mongo.js:161:23
  at /home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1404:28
  at /home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1542:30
  at /home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:159:22
  at commandHandler (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:678:48)
  at /home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1806:9
  at __executeQueryCommand (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1636:44)
  at Db._executeQueryCommand (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1805:7)
  at Cursor.nextObject (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:729:13)
  at Cursor.toArray (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/cursor.js:158:10)
  at Cursor.toArray (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/scope.js:10:20)
  at /home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1541:65
  at Db.collection (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:495:44)
  at Db.indexInformation (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1539:8)
  at Db.ensureIndex (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:1403:8)
  at Collection.ensureIndex (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/collection/index.js:65:11)
  at /home/nick/Development/partybot-web/node_modules/connect-mongo/lib/connect-mongo.js:159:29
  at Db.collection (/home/nick/Development/partybot-web/node_modules/connect-mongo/node_modules/mongodb/lib/mongodb/db.js:495:44)
  at MongoStore._get_collection (/home/nick/Development/partybot-web/node_modules/connect-mongo/lib/connect-mongo.js:150:17)
  at MongoStore.set (/home/nick/Development/partybot-web/node_modules/connect-mongo/lib/connect-mongo.js:262:12)
  at Session.save (/home/nick/Development/partybot-web/node_modules/express/node_modules/connect/node_modules/express-session/session/session.js:63:25)
  at ServerResponse.res.end (/home/nick/Development/partybot-web/node_modules/express/node_modules/connect/node_modules/express-session/index.js:304:19)
  at twilioResponse (/home/nick/Development/partybot-web/lib/controllers/incoming.js:19:7)
  at Promise.<anonymous> (/home/nick/Development/partybot-web/lib/controllers/incoming.js:58:5)
  at Promise.<anonymous> (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/mpromise/lib/promise.js:177:8)
  at Promise.EventEmitter.emit (events.js:98:17)
  at Promise.emit (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/mpromise/lib/promise.js:84:38)
  at Promise.fulfill (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/mpromise/lib/promise.js:97:20)
  at handleSave (/home/nick/Development/partybot-web/node_modules/mongoose/lib/model.js:133:13)
  at /home/nick/Development/partybot-web/node_modules/mongoose/lib/utils.js:408:16
  at /home/nick/Development/partybot-web/node_modules/mockgoose/lib/Collection.js:116:13
  at Object.validateOptions [as validate] (/home/nick/Development/partybot-web/node_modules/mockgoose/lib/validation/Validation.js:40:5)
  at Collection.insert (/home/nick/Development/partybot-web/node_modules/mockgoose/lib/Collection.js:110:20)
  at model.save (/home/nick/Development/partybot-web/node_modules/mongoose/lib/model.js:190:21)
  at model._done (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/hooks/hooks.js:59:24)
  at _next (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/hooks/hooks.js:52:28)
  at fnWrapper (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/hooks/hooks.js:159:8)
  at model.<anonymous> (/home/nick/Development/partybot-web/lib/models/message.js:31:3)
  at _next (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/hooks/hooks.js:50:30)
  at fnWrapper (/home/nick/Development/partybot-web/node_modules/mongoose/node_modules/hooks/hooks.js:159:8)
  at complete (/home/nick/Development/partybot-web/node_modules/mongoose/lib/document.js:974:5)
  at /home/nick/Development/partybot-web/node_modules/mongoose/lib/document.js:965:20
  at ObjectId.SchemaType.doValidate (/home/nick/Development/partybot-web/node_modules/mongoose/lib/schematype.js:603:22)
  at /home/nick/Development/partybot-web/node_modules/mongoose/lib/document.js:956:9
  at process._tickCallback (node.js:415:13)
GET /api/incoming/sms 200 21ms
․db connection open
POST /api/incoming/sms 200 6ms

Answer 1

“会话”MongoDB集合是由Node.js Express框架的“会话”模块在这里请求的：

Session.save (node_modules/express-session/session/session.js:63:25)

我一直在用莫克鹅来嘲弄我的猫鼬包装的MongoDB表。正在完美地完成它的工作，。

问题是这个“会话”集合是直接在Express框架配置中指定的，没有实现Mongoose

    // Persist sessions with mongoStore
app.use(express.session({
  secret: 'angular-fullstack secret',
  store: new mongoStore({
    url: config.mongo.uri,
    collection: 'sessions'
  }, function () {
      console.log("db connection open");
  })
}));

我将不得不单独进行我的快速会话嘲弄！

Answer 2

并非所有的猫鼬都已完全实施。但是，如果您可以添加一个显示此问题的测试用例，那么我通常将重点放在实现该项而不是列表中的其他项上。

https://github.com/mccormicka/Mockgoose/issues/38

Answer 3

我遇到了同样的问题--我的解决方案是使用速成会话的内存选项(在没有指定其他内存的情况下使用默认选项)，而不是使用mongodb。很快，我就这么做了：

if (process.env.NODE_ENV === 'test') {
    app.use(session({ secret: config.sessionSecret }));
} else {
    app.use(session({
        secret: config.sessionSecret,
        store: new mongoStore({
            //db: db.connection.db,
            mongoose_connection: db.connection,
            collection: config.sessionCollection
        })
    }));
}