decimal.pg.rb

# Activate the gem you are reporting the issue against.
gem 'activerecord', '4.0.2'
require 'active_record'
require 'minitest/autorun'
require 'logger'

require 'bigdecimal'

# Ensure backward compatibility with Minitest 4
Minitest::Test = MiniTest::Unit::TestCase unless defined?(Minitest::Test)

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

ActiveRecord::Schema.define do
  create_table "items" do |t|
    t.decimal  "delta"
  end
end

class Item < ActiveRecord::Base
end

class BugTest < Minitest::Test
  def test_association_stuff
    arr = ["-100", "10", "1", "0.1", "5", "-10", "-1", "1", "-10", "113"]
    arr.each do |val|
      item = { delta: val }
      Item.create! item
    end
    assert_equal BigDecimal.new("9.1"), Item.sum('delta')
  end
end