[branko_d]

We make tests robust in the face of existing data. For example, each name is "GUID-ified", we only compare specific subsets of rows that we know will be isolated from the rest etc...

We still use transaction rollback for most of our tests, but all tests are written with the assumption of existing data, to accommodate for the few tests that must commit their transactions (such as concurrency tests).

[augustl]

This is the way to go imo!

It also enables parallelization of test runs :)

And it also makes testing databases with limited transaction APIs (like DynamoDB) much easier.