Test case of AR 4.2.5 and Oracle (oracle-enhanced/issues/755)

test_find_by_created_at.rb

# Activate the gem you are reporting the issue against.
gem 'activerecord', '4.2.5'
gem 'activerecord-oracle_enhanced-adapter', '1.6.5'
require 'active_record'
require 'minitest/autorun'
require 'logger'
require 'active_record/connection_adapters/oracle_enhanced_adapter'

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

# Set Oracle enhanced adapter specific connection parameters
DATABASE_NAME = ENV['DATABASE_NAME'] || 'orcl'
DATABASE_HOST = ENV['DATABASE_HOST']
DATABASE_PORT = ENV['DATABASE_PORT']
DATABASE_USER = ENV['DATABASE_USER'] || 'oracle_enhanced'
DATABASE_PASSWORD = ENV['DATABASE_PASSWORD'] || 'oracle_enhanced'
DATABASE_SYS_PASSWORD = ENV['DATABASE_SYS_PASSWORD'] || 'admin'

CONNECTION_PARAMS = {
  :adapter => "oracle_enhanced",
  :database => DATABASE_NAME,
  :host => DATABASE_HOST,
  :port => DATABASE_PORT,
  :username => DATABASE_USER,
  :password => DATABASE_PASSWORD
}

ActiveRecord::Base.establish_connection(CONNECTION_PARAMS)

ActiveRecord::Base.logger = Logger.new(STDOUT)

ActiveRecord::Schema.define do
  create_table :posts, :force => true do |t|
    t.timestamps null: false
  end
end

class Post < ActiveRecord::Base
end

class BugTest < Minitest::Test
  def test_find_by_created_at
    post = Post.create!

    created_at = post.created_at

    assert_equal post, Post.find_by(created_at: created_at)
  end
end