datetypecast_edge.rb

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

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

  gem "rails", github: "rails/rails"
  gem "pg"
end

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

ActiveRecord::Base.establish_connection(adapter: "postgresql", database: "postgres")
ActiveRecord::Base.connection.execute("DROP DATABASE IF EXISTS typecast_test")
ActiveRecord::Base.connection.execute("CREATE DATABASE typecast_test")
ActiveRecord::Base.establish_connection(adapter: "postgresql", database: "typecast_test")
ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :posts, force: true do |t|
    t.date :some_date
  end
end

class Post < ActiveRecord::Base
end

class BugTest < Minitest::Test
  def test_date_typecasting
    Post.create!(some_date: 1.year.ago.to_date)
    Post.create!(some_date: 1.month.ago.to_date)
    max_date = Post.maximum(:some_date)

    assert_equal Date, max_date.class
  end
end