ActiveRecord Primary Key Test Case

bug-report.rb

# frozen_string_literal: true

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
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem 'rails', '5.1.6'
  gem "sqlite3"
end

require "active_record"
require "minitest/autorun"
require "logger"

# This connection will do for database-independent bug reports.
ActiveRecord::Base.establish_connection(adapter: "sqlite3", database: ":memory:")
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :samples, primary_key: 'sample_id', force: true do |t|
    t.string 'comment'
  end
end

class Sample < ActiveRecord::Base
end

class BugTest < Minitest::Test
  def test_association_stuff
    Sample.find_or_create_by(sample_id: 1)

    ActiveRecord::Base.connection.add_column :samples, :id, :integer
    Sample.reset_column_information
    record = Sample.first
    assert_equal 1, record.sample_id
    assert_nil Sample.first.id
  end
end