[e2e tests for mongo-sample] about testing-nestjs HOT 6 OPEN

An e2e test usually should be using a database, that way you are testing the entire flow, from the request coming in, to the data being saved, to the data being retrieved. Usually it's also preferable to use a different database for testing that your dev or production database to ensure you don't have any collisions or pollution of your database. I can try to add an e2e sample for mongo though

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Add a new cats.e2e-spec.ts. I'm pretty sure that's what the TypeORM sample does

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Hey guys :)

@jmcdo29 well done with the repo!
Actually, when I looked at the tests I was looking exactly for what you have described here.

Thought about adding this e2e test, from the controller to an in-memory DB, what do you think?

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@omermorad thanks for looking to continue! You can either use an in memory database, or you can add the mongo image to the docker-compose. Either way I look forward to the contribution

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Great, I will work on something and send you a PR

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Should I modify this test? Or work on a new one?

https://github.com/jmcdo29/testing-nestjs/blob/dff1168a019bd30458b1d8bae58bf8985a267095/apps/mongo-sample/test/app.e2e-spec.ts

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