MongooseModule forRootAsync doesn't connect to mongo

[m3bwc]

I'm submitting a...

[ ] Regression 
[X] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

MongooseModule.forRootAsync doesn't connect to mongodb when we use useFactory

Expected behavior

MongooseModule.forRootAsync should be connect to mongodb when we use useFactory

Minimal reproduction of the problem with instructions

MongooseModule.forRootAsync({
  useFactory: () => ({
    uri: 'mongodb://localhost/nest',
  }),
})

What is the motivation / use case for changing the behavior?

Environment

"@nestjs/common": "^5.7.3",
"@nestjs/core": "^5.4.1",
"@nestjs/jwt": "^0.3.0",
"@nestjs/mongoose": "5.2.2",
"rxjs": "^6.2.2",
 
For Tooling issues:
- Node version: v11.9.0  
- Platform: Linux

[kamilmysliwiec]

I can't reproduce your issue. Please, provide a minimal repository which reproduces your problem.