what test data approach/framework is recommended for .net unit testing

what test data approach/framework is recommended for .net unit testing? I'm in VS2010, C#开发者_如何学C, doing business logic layer testing.

By approaches I mean like: creating database snapshots, programmatically creating each time, etc etc. Like what approach to use to ensure at the start of each test the database is in a known state.

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Some would say that if you're using the database, then you're doing functional testing, not unit testing.

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This is not directly related to database testing. But in general when we need to setup test data we can use a library called NBuilder. It can create single instance of a calss as well as a list of instances. It uses a very fluent interface and is very easy to use. I had written a blog about the same.