Prepare for Rails 4:

loosen AR version dependencies;
implement gemfiles testing pattern;
improve readme;
add rake task for running tests against all supported AR versions;
update travis.yml;
require library being tested last in test_helper;

.gitignore

@@ -18,5 +18,8 @@ test/version_tmp
 tmp
 bin/
 .rbenv-version*
+.ruby-version
+.ruby-gemset
+gemfiles/*.lock
 
 spec/dummy/config/database.yml

.travis.yml

@@ -1,19 +1,19 @@
 rvm:
-- 1.9.3
 - 2.0.0
-- jruby-19mode
+- 2.1.2
+
+gemfile:
+  - gemfiles/Gemfile.activerecord-4.0.x
+  - gemfiles/Gemfile.activerecord-4.1.x
 
 env: DATABASE_URL=postgres://postgres@localhost/postgres_ext_test
 
 before_script:
 - psql -c 'create database postgres_ext_test;' -U postgres -h localhost
-- rake db:migrate
+- bundle exec rake db:migrate
 
 notifications:
   email:
   - git@danmcclain.net
-  hipchat:
-    rooms:
-      secure: gebjx8Q/jmnNmf6l+SyQHHJjGn9RfA6s4e8sIoRBVt9pomkOCBvHq7++AjpVlqkXcvV6rK2L90rAEPKMP0QUS04vRtRY6LvwmjiQHFo99/gktG6LO+5/QGvy9zbK4PxWe35Yr1F98Gs0mQ+y/ZbU6u8rJsI7DM1iPq2ULzo/QUw=
 addons:
   postgresql: '9.3'

README.md

@@ -44,13 +44,17 @@ be adding more datatypes as we come across them.
 
 To work on postgres\_ext locally, follow these steps:
 
- 1. Run `bundle install`, this will install all the development
+ 1. Run `bundle install`, this will install (almost) all the development
     dependencies
- 2. Run `rake setup`, this will set up the `.env` file necessary to run
+ 2. Run `gem install byebug` (not a declared dependency to not break CI)
+ 3. Run `bundle exec rake setup`, this will set up the `.env` file necessary to run
     the tests and set up the database
- 3. Run `rake db:create`, this will create the test database
- 4. Run `rake db:migrate`, this will set up the database tables required
+ 4. Run `bundle exec rake db:create`, this will create the test database
+ 5. Run `bundle exec rake db:migrate`, this will set up the database tables required
     by the test
+ 6. Run `BUNDLE_GEMFILE='gemfiles/Gemfile.activerecord-4.0.x' bundle install --quiet` to create the Gemfile.lock for 4.0.
+ 7. Run `BUNDLE_GEMFILE='gemfiles/Gemfile.activerecord-4.1.x' bundle install --quiet` to create the Gemfile.lock for 4.1.
+ 8. Run `bundle exec rake test:all` to run tests against all supported versions of Active Record
 
 ## Authors
 

Rakefile

@@ -34,6 +34,17 @@ end
 
 task :default => :test
 
+namespace :test do
+  desc 'Test against all supported ActiveRecord versions'
+  task :all do
+    # Currently only supports Active Record v4.0
+    %w(4.0.x 4.1.x).each do |version|
+      sh "BUNDLE_GEMFILE='gemfiles/Gemfile.activerecord-#{version}' bundle install --quiet"
+      sh "BUNDLE_GEMFILE='gemfiles/Gemfile.activerecord-#{version}' bundle exec rake test"
+    end
+  end
+end
+
 task :setup do
   if File.exist?('.env')
     puts 'This will overwrite your existing .env file'

gemfiles/Gemfile.activerecord-4.0.x

@@ -0,0 +1,5 @@
+source "https://rubygems.org"
+
+gemspec :path => '..'
+
+gem "activerecord", "~>4.0.0"

gemfiles/Gemfile.activerecord-4.1.x

@@ -0,0 +1,5 @@
+source "https://rubygems.org"
+
+gemspec :path => '..'
+
+gem "activerecord", "~>4.1.0"

postgres_ext.gemspec

@@ -16,8 +16,8 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.version       = PostgresExt::VERSION
 
-  gem.add_dependency 'activerecord', '~> 4.0.0'
-  gem.add_dependency 'arel', '~> 4.0.1'
+  gem.add_dependency 'activerecord', '>= 4.0.0'
+  gem.add_dependency 'arel', '>= 4.0.1'
   gem.add_dependency 'pg_array_parser', '~> 0.0.9'
 
   gem.add_development_dependency 'rake', '~> 10.1.0'

test/test_helper.rb

@@ -1,7 +1,6 @@
 require 'active_record'
 require 'minitest/autorun'
 require 'bourne'
-require 'postgres_ext'
 require 'database_cleaner'
 unless ENV['CI'] || RUBY_PLATFORM =~ /java/
   require 'byebug'
@@ -10,6 +9,8 @@
 require 'dotenv'
 Dotenv.load
 
+require 'postgres_ext'
+
 ActiveRecord::Base.establish_connection
 
 class Person < ActiveRecord::Base