To run the specs first run the bundle command to install the necessary gems and the rake command to run the specs.
bundle
Then run the appraisal command to install all the necssary test sets:
appraisal install
You can then run all test sets:
appraisal rake
Or individual ones:
appraisal rails_3.0 rake
A list of the tests is in the Appraisal file.
The specs support Ruby 1.8.7+
The model adapter ENV setting has been removed and replaced with the Appraisal file.