how to Unit test fluent mappings, with in memory sqlite when you got sequences

My Real db is oracle, and has sequences(not under my control). I wanna test the mappings with in memory sqlite db, I thought about a few options, do a sequence conventions(if possible) that will be active only when I'm on oracle, make the Id Mapping call another method that will resolve the id mapping 开发者_运维百科by it self and ask some one about the configured db.

What is the best practice for my problem?

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Use the GenretedBy.Native([seqName]);