Unit tests
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The unit test coverage is 100%.
To avoid writing nonsense tests,
some files are omitted from the unit test coverage reports.
These files are covered by integration tests, these are:

- `src/dataConnector/*` These files connect the database implementation, and may depend on the databases' behavior, thus unit testing these does not gain us much.

100% coverage is important, because that ensures that there is no dead code left in the system that has no real use.

Integration tests
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These aim to test arbitrary schemas via property based testing.

The goal with these is to enable users to input their schema and have it automatically tested.