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| gem 'activerecord', '3.2.13' | |
| require 'active_record' | |
| require 'minitest/autorun' | |
| require 'logger' | |
| require 'debugger' | |
| ActiveRecord::Base.establish_connection(adapter: 'sqlite3', database: ':memory:') | |
| ActiveRecord::Base.logger = Logger.new(STDOUT) | |
| ActiveRecord::Schema.define do | |
| create_table :users do |t| | |
| t.integer :saved_count | |
| t.timestamps | |
| end | |
| create_table :profiles do |t| | |
| t.integer :user_id | |
| t.integer :post_id | |
| t.timestamps | |
| end | |
| create_table :posts do |t| | |
| t.string :content | |
| t.timestamps | |
| end | |
| end | |
| class User < ActiveRecord::Base | |
| has_many :profiles | |
| has_many :posts, through: :profiles | |
| before_save -> { increment :saved_count } | |
| end | |
| class Profile < ActiveRecord::Base | |
| belongs_to :user | |
| belongs_to :post | |
| end | |
| class Post < ActiveRecord::Base | |
| has_one :profile | |
| has_one :user, through: :profile | |
| end | |
| class BugTest < MiniTest::Unit::TestCase | |
| def test_saving_post_does_not_save_user | |
| user = User.create! | |
| post = Post.create!(content: 'foo') | |
| profile = Profile.create!(post: post, user: user) | |
| post.save | |
| assert_equal 1, user.reload.saved_count | |
| post.user # necessary to create the reference | |
| post.save | |
| assert_equal 1, user.reload.saved_count | |
| end | |
| end |
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