Add a method for running the specs on different database adapters

seed-fu.gemspec

@@ -15,13 +15,11 @@ Gem::Specification.new do |s|
   s.description = "Seed Fu is an attempt to once and for all solve the problem of inserting and maintaining seed data in a database. It uses a variety of techniques gathered from various places around the web and combines them to create what is hopefully the most robust seed data system around."
 
   s.add_dependency "activerecord", "~> 3.0.0"
-  s.add_development_dependency "rspec", "~> 2.0.0"
 
-  if RUBY_VERSION >= '1.9.1'
-    s.add_development_dependency "sqlite3"
-  else
-    s.add_development_dependency "sqlite3-ruby"
-  end
+  s.add_development_dependency "rspec", "~> 2.0.0"
+  s.add_development_dependency "pg"
+  s.add_development_dependency "mysql2"
+  s.add_development_dependency(RUBY_VERSION >= '1.9.1' ? "sqlite3" : "sqlite3-ruby")
 
   s.files        = Dir.glob("{lib}/**/*") + %w(LICENSE README.md CHANGELOG.md)
   s.require_path = 'lib'

spec/README

@@ -0,0 +1,16 @@
+To run the specs:
+
+  gem install bundler # If not already installed
+  bundle install      # Install the dependencies
+  rspec spec/         # Run the specs
+
+By default an sqlite3 database is used.
+
+To test others:
+
+  DB=mysql rspec spec/
+  DB=postgresql rspec spec/
+
+In each of these cases, you'll need to create a database named "spec_fu_test".
+
+The connection paramaters for each of these are specified in spec/connections/, which you can edit if necessary (for example to change the username/password).

spec/connections/mysql.rb

@@ -0,0 +1,5 @@
+ActiveRecord::Base.establish_connection(
+  :adapter  => "mysql2",
+  :database => "seed_fu_test",
+  :username => "root"
+)

spec/connections/postgresql.rb

@@ -0,0 +1,5 @@
+ActiveRecord::Base.establish_connection(
+  :adapter  => "postgresql",
+  :database => "seed_fu_test",
+  :username => "postgres"
+)

spec/connections/sqlite3.rb

@@ -0,0 +1,4 @@
+ActiveRecord::Base.establish_connection(
+  :adapter => "sqlite3",
+  :database => File.dirname(__FILE__) + "/test.sqlite3"
+)

spec/spec_helper.rb

@@ -3,19 +3,13 @@
 require 'seed-fu'
 require 'logger'
 
-RSpec.configure do |config|
-  config.before do
-    SeededModel.delete_all
-  end
-end
-
 SeedFu.quiet = true
 
 ActiveRecord::Base.logger = Logger.new(File.dirname(__FILE__) + "/../debug.log")
-ActiveRecord::Base.establish_connection(
-  :adapter => "sqlite3",
-  :database => File.dirname(__FILE__) + "/test.sqlite3"
-)
+
+ENV["DB"] ||= 'sqlite3'
+puts "Using #{ENV["DB"]} to run the tests."
+require File.dirname(__FILE__) + "/connections/#{ENV["DB"]}.rb"
 
 ActiveRecord::Schema.define :version => 0 do
   create_table :seeded_models, :force => true do |t|
@@ -30,3 +24,9 @@ class SeededModel < ActiveRecord::Base
   validates_presence_of :title
   attr_protected :first_name
 end
+
+RSpec.configure do |config|
+  config.before do
+    SeededModel.delete_all
+  end
+end