RSpec fails testing on ActiveRecord

Hi,

I’m new to RoR, and following the RoR 3.2 Tutorial from Michael H…

When it comes to execute testing (chap. 3.2.1), RSpec returns a hundred
of errors starting with this one (and all looking the same more or
less):

/home/fred/.rvm/gems/ruby-1.9.3-p0@ODQ/gems/activerecord-3.2.1/lib/active_record/connection_adapters/abstract/connection_specification.rb:45:in
`resolve_hash_connection’: database configuration does not specify
adapter (ActiveRecord::AdapterNotSpecified)

My DEV database is PostgreSQL and looks to work fine.

Can some help me to understand what’s wrong and solve it ?

Thanks.