Padrino and RSpec don't work with Sequel?

Question

Recently, I've started diving into Ruby MVCs, in order to find the best, fastest, most minimal framework to build my app. Being unsatisfied with Rails, I decided to try out Padrino. I'm also trying out Outside-in TDD for a full app for the first time, so being able to write tests for all components is critical. Unfortunately, I cannot get past making models in Padrino, so I'm wondering if it's just a cause of beta software, or just error on my part.

I start off by creating my project with Cucumber and RSpec for testing and Sequel for my ORM.

$ padrino g project test -d sequel -t cucumber -c sass -b

Next, I create some model and migration:

$ padrino g model user

# ./db/migrate/001_create_users.rb
Sequel.migration do
  change do
    create_table :users do
      primary_key :id
      String :name
      String :password
    end
  end
end

Next, of course, comes the spec. For sake of example, just something simple:

# ./spec/models/user_spec.rb
require 'spec_helper'

describe User do
  it 'can be created' do
    user = User.create
  end
end

Now, migrate and run the spec:

$ padrino rake sq:migrate:up
$ rspec spec

F

Failures:

  1) User can be created
     Failure/Error: user = User.create
     Sequel::DatabaseError:
       SQLite3::SQLException: no such table: users
     # ./spec/models/user_spec.rb:5:in `block (2 levels) in <top (required)>'

Finished in 0.00169 seconds
1 example, 1 failure

Failed examples:

rspec ./spec/models/user_spec.rb:4 # User can be created

This is very confusing. It was at this point that I thought going into the Padrino console would help me solve this strange issue. I was wrong.

$ padrino c
> User.create
  => #<User @values={:id=>1, :name=>nil, :password=>nil}>
> User.all
  => [#<User @values={:id=>1, :name=>nil, :password=>nil}>]

Fair enough results, but then I try it with the test environment:

$ padrino c -e test
> User.create
  Sequel::DatabaseError: SQLite3::SQLException: no such table: users

I know that in RoR, to get integrated models to run, you have to do something like rake db:test:prepare, but doing padrino rake -T doesn't seem to reveal any equivalent (tested with Sequel, DataMapper, and ActiveRecord; none seem to have the db:test:prepare). So, my question is: how do I get integrated database tests running within Padrino?

Answer 1

From this forum post, I discovered why db:test:prepare is this weird, arbitrary rake task one needs to run: it has to do with the test environment (versus development and production). In Padrino, this translates to the following code, which is a bit more obscure, but more intuitive as well:

$ padrino rake sq:migrate:up -e test

This tells Padrino to create the table for the test database, which allows the spec(s) to pass.