Ruby On Rails 3 and advanced books covering tests [closed]

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I'm a ruby on rails developer for almost 1 year.

I begin to know rather good RoR, and I am looking for some a开发者_运维问答dvanced books covering the tests(including RSpec and Cucumber).

I'm not looking for beginner's books.

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3 books came to mind, hopefully they help you out:

• RSpec book
• Rails Test Prescription
• Continuous Testing with Ruby