Create a rails 3 plugin with RSpec

The question explains itself...

I wanna test a new rails plugin with rspec, are there any specific generators, gems?

I used rails g plugin blabla and I got an error on rspec generator: error rspec [not fou开发者_如何学Gond].

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FYI - there is an open github issue about this: https://github.com/rspec/rspec-rails/issues/#issue/258.