[koblas]

For golang, but would work in any language. What's really worked is the idea that your main loads configuration and injects all of the configured interfaces into your handler.

You then can build all of the testing on mocks/stubs to test the behavior. If you access a database you access in through the interface which can mimic the appropriate behavior for your code in test vs production. If you need to you can do local integration testing of the db access layer.