Best way to Unit test a repository layer using EF4?

Let's say you have following layers: Controller -> Services -> Repositories.

Let's say you have following layers: Controller -> Services -> Repositories You said you have lot of queries which suppose to be put in the repository classes. To test these queries, integration tests are suitable. To Unit test Services you can use any mock framework like Moq or Rhino Mock to create mock objects of Repositories.

The thing is we don't need to Unit Test repository classes because mostly they delegate the database query to EF or Nbernate so some sort of integration tests are good for them.

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