class RSpec::Core::Configuration

- called after verify_mocks_for_rspec (even if there are errors)
teardown_mocks_for_rspec

when expectations fail
- called after each example. Framework should raise an exception
verify_mocks_for_rspec

- called before each example
setup_mocks_for_rspec

should adhere to RSpec's mock framework adapter API:
Given a Module, includes that module in every example group. The module

mocking framework to save a little bit of overhead.
Given :nothing, configures no framework. Use this if you don't use any

framework.
Given any of :rspec, :mocha, :flexmock, or :rr, configures the named

+framework+ can be a Symbol or a Module.

Sets the mock framework adapter module.

def mock_framework=(framework)
  case framework
  when Module
    settings[:mock_framework] = framework
  when String, Symbol
    require case framework.to_s
            when /rspec/i
              'rspec/core/mocking/with_rspec'
            when /mocha/i
              'rspec/core/mocking/with_mocha'
            when /rr/i
              'rspec/core/mocking/with_rr'
            when /flexmock/i
              'rspec/core/mocking/with_flexmock'
            else
              'rspec/core/mocking/with_absolutely_nothing'
            end
    settings[:mock_framework] = RSpec::Core::MockFrameworkAdapter
  else
  end
end