Bug report : Enum and PaperTrail

bug_report_enum_and_paper_trail.rb

# Issues https://github.com/airblade/paper_trail/issues/798

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do
  ruby "2.2.5"
  source "https://rubygems.org"
  gem "activerecord", "4.2.6"
  gem "minitest", "5.8.4"
  gem "paper_trail", "5.0.1", require: false
  gem "sqlite3"
end

require "active_record"
require "minitest/autorun"
require "logger"
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :users, force: true do |t|
    t.string :email, null: false
    t.integer :gender, default: 0
    t.timestamps null: false
  end
  create_table :versions do |t|
    t.string :item_type, null: false
    t.integer :item_id, null: false
    t.string :event, null: false
    t.string :whodunnit
    t.text :object, limit: 1_073_741_823
    t.text :object_changes, limit: 1_073_741_823
    t.integer :transaction_id
    t.datetime :created_at
  end
  add_index :versions, [:item_type, :item_id]
  add_index :versions, [:transaction_id]

  create_table :version_associations do |t|
    t.integer  :version_id
    t.string   :foreign_key_name, null: false
    t.integer  :foreign_key_id
  end
  add_index :version_associations, [:version_id]
  add_index :version_associations, [:foreign_key_name, :foreign_key_id],
    name: "index_version_associations_on_foreign_key"
end

# Require `paper_trail.rb` after the `version_associations` table
# exists so that PT will track associations.
require "paper_trail"

PaperTrail.config.track_associations = true

# Include your models here. Please only include the minimum code necessary to
# reproduce your issue.
class User < ActiveRecord::Base
  has_paper_trail
  enum gender: { male: 0, female: 1 }
end

class BugTest < ActiveSupport::TestCase
  def test_enum
    user = User.create(email: "user@example.com", gender: :male)
    user.save

    assert_equal 1, user.versions.count
    assert_equal "male", user.gender

    user.touch_with_version

    assert_equal 2, user.versions.count
    # Fails: expected to be "male" but it returns nil
    assert_equal "male", user.previous_version.gender
  end
end

bug_report_enum_and_paper_trail_2.rb

# Issues https://github.com/airblade/paper_trail/issues/798

begin
  require "bundler/inline"
rescue LoadError => e
  $stderr.puts "Bundler version 1.10 or later is required. Please update your Bundler"
  raise e
end

gemfile(true) do
  ruby "2.3.1"
  source "https://rubygems.org"
  gem "activerecord", "4.2.6"
  gem "minitest", "5.8.4"
  gem "paper_trail", "5.0.1", require: false
  gem "sqlite3"
end

require "active_record"
require "minitest/autorun"
require "logger"
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :posts, force: true do |t|
    t.integer :status, default: 0
    t.timestamps null: false
  end
  create_table :versions do |t|
    t.string :item_type, null: false
    t.integer :item_id, null: false
    t.string :event, null: false
    t.string :whodunnit
    t.text :object, limit: 1_073_741_823
    t.text :object_changes, limit: 1_073_741_823
    t.integer :transaction_id
    t.datetime :created_at
  end
  add_index :versions, [:item_type, :item_id]
  add_index :versions, [:transaction_id]

  create_table :version_associations do |t|
    t.integer  :version_id
    t.string   :foreign_key_name, null: false
    t.integer  :foreign_key_id
  end
  add_index :version_associations, [:version_id]
  add_index :version_associations, [:foreign_key_name, :foreign_key_id],
    name: "index_version_associations_on_foreign_key"
end

# Require `paper_trail.rb` after the `version_associations` table
# exists so that PT will track associations.
require "paper_trail"

PaperTrail.config.track_associations = true

# Include your models here. Please only include the minimum code necessary to
# reproduce your issue.
class Post < ActiveRecord::Base
  has_paper_trail
  enum status: { draft: 0, published: 1, unpublished: 2 }
end

class BugTest < ActiveSupport::TestCase
  def test_post_with_status_enum
    post = Post.create!(status: "draft") # enum 0
    assert_equal 1, post.versions.count

    post.published!
    assert_equal 2, post.versions.count
    assert_equal 0, post.versions[1].object_deserialized["status"]  # draft

    # Not need it because im using sqlite3
    #Timecop.travel 1.second.since # because MySQL doesn't do fractional seconds

    post.touch_with_version
    assert_equal 3, post.versions.count
    assert_equal 1, post.versions[2].object_deserialized["status"]  # published

    post.archived!
    assert_equal 4, post.versions.count
    assert_equal 1, post.versions[3].object_deserialized["status"]  # published
    assert_equal true, post.previous_version.published?
  end
end