rails_ar_pg_array_bug.rb

unless File.exist?('Gemfile')
  File.write('Gemfile', <<-GEMFILE)
    source 'https://rubygems.org'
    gem 'rails', '4.0.2'
    gem 'arel'
    gem 'pg'
  GEMFILE

  system 'bundle'
end

require 'bundler'
Bundler.setup(:default)

require 'active_record'
require 'minitest/autorun'
require 'logger'

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: 'postgresql', database: 'rails_test')
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :comments do |t|
    t.timestamp :timestamps, array: true, default: []
    t.date :dates, array: true, default: []
  end
end

class Post < ActiveRecord::Base
end

class BugTest < MiniTest::Unit::TestCase
  def test_stuff
    time = Time.now
    post = Post.create(timestamps: [time], dates: [Date.today])

    assert_equal [time], post.timestamps
  end
end