-1 for the current version. I agree with you that some cleaning must be done in the DataMapper.Test but the most popular database used in Windows environment is SQL Server (there is free version and it is very easy to install) and the core test must be done on it . In the V2, the Test project will be split by database. The core test will be done against Sql Server and specific test will be done on other database in specific test project
-- Cheers, Gilles