Feature: mongodb as replica set (single node)

What are you trying to do?

Unit testing of Mongodb transactions.

Why should it be done this way?

mongomock can often be used in unit testing of mongodb-related functionality. It's faster and easier than using docker containers for such tests. But perhaps one of the most important scenarios in which mongomock is not applicable is testing the functionality using MongoDB transactions. At the moment, transaction mocking is not implemented in mongomock. But even if support for this was implemented there, such sensitive functionality (using transactions) would like to be checked "naturally". But as you know, transactions are possible only for replica sets, which the default MongoDB container is not. It is possible to configure mongodb as a replicaset (although with one node, but I think this is not critical for testing).

If you find this functionality useful here in the public, I can provide a PR (either as a separate Mongodb container, or extend the current MongoDbContainer with configuration options). What do you think about it?

Bắt đầu với MongoDbContainer hiện tại và thiết lập container MongoDB mặc định. Kiểm tra cách cấu hình replica set một nút cho các bài kiểm thử dựa trên container, sau đó xác minh rằng các giao dịch MongoDB có thể chạy thông qua container thu được. Công việc được hoàn tất khi người dùng có thể sử dụng container để kiểm thử chức năng giao dịch mà không cần cấu hình replica set bên ngoài.