Trigger error on hash collision in jsonapi-resources

test-error-hash.rb

# run this some hundred times per:
#    while ruby test-error-hash.rb ; do echo; done
#

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

gemfile(true, ui: ENV['SILENT'] ? Bundler::UI::Silent.new : Bundler::UI::Shell.new) do
  source 'https://rubygems.org'

  gem 'rails', require: false
  gem 'sqlite3', platform: :mri

  gem 'jsonapi-resources', require: false
end

# prepare active_record database
require 'active_record'

class NullLogger < Logger
  def initialize(*_args)
  end

  def add(*_args, &_block)
  end
end

ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:')
ActiveRecord::Base.logger = ENV['SILENT'] ? NullLogger.new : Logger.new(STDOUT)
ActiveRecord::Migration.verbose = !ENV['SILENT']

ActiveRecord::Schema.define do
  # Add your schema here
  create_table :posts, force: true do |t|
    t.string :text
  end
  create_table :comments, force: true do |t|
    t.string :text
    t.references :post
  end
end

# create models
class Post < ActiveRecord::Base
  has_many :comments
end

class Comment < ActiveRecord::Base
  belongs_to :posts
end

# prepare rails app
require 'action_controller/railtie'
# require 'action_view/railtie'
require 'jsonapi-resources'

class ApplicationController < ActionController::Base
end

# prepare jsonapi resources and controllers
class PostsController < ApplicationController
  include JSONAPI::ActsAsResourceController
end
class CommentsController < ApplicationController
  include JSONAPI::ActsAsResourceController
end

class PostResource < JSONAPI::Resource
  attribute :text
  filter :text
  has_many :comments
end

class CommentResource < JSONAPI::Resource
  has_one :post
  attribute :text
  filter :text
end

class TestApp < Rails::Application
  config.root = File.dirname(__FILE__)
  config.logger = ENV['SILENT'] ? NullLogger.new : Logger.new(STDOUT)
  Rails.logger = config.logger

  secrets.secret_token = 'secret_token'
  secrets.secret_key_base = 'secret_key_base'

  config.eager_load = false
  config.hosts << "example.org"
end

# initialize app
Rails.application.initialize!

JSONAPI.configure do |config|
  config.json_key_format = :underscored_key
  config.route_format = :underscored_key
end

# draw routes
Rails.application.routes.draw do
  jsonapi_resources :posts, only: [:index, :create]
  jsonapi_resources :comments, only: [:index, :create]
end

# prepare tests
require 'minitest/autorun'
require 'rack/test'

# Replace this with the code necessary to make your test fail.
class BugTest < Minitest::Test
  include Rack::Test::Methods

  def json_api_headers
    {'Accept' => JSONAPI::MEDIA_TYPE, 'CONTENT_TYPE' => JSONAPI::MEDIA_TYPE}
  end

  def test_index_your_models
    1.times do
      record = Post.new text: 'My post'
      record.comments.build(text: 'My comment')
      record.save!

      get "/posts/#{record.id}/comments", nil, json_api_headers
      assert last_response.ok?
    end
  end

  private

  def app
    Rails.application
  end
end