dskecse · June 15, 2017 11:43 · Jun 15, 2017
diff --git a/activerecord_proxy_association_bug.rb b/activerecord_proxy_association_bug.rb
@@ -0,0 +1,56 @@
+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'
+  # Activate the gem you are reporting the issue against.
+  gem 'activerecord', '5.0.3'
+  gem 'sqlite3'
+end
+
+require 'active_record'
+require 'minitest/autorun'
+require 'logger'
+
+# Ensure backward compatibility with Minitest 4
+Minitest::Test = MiniTest::Unit::TestCase unless defined?(Minitest::Test)
+
+# 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 :articles, force: true
+
+  create_table :comments, force: true do |t|
+    t.text :content
+    t.references :article, foreign_key: true
+  end
+end
+
+class Article < ActiveRecord::Base
+  has_many :comments do
+    def build(*args, &block)
+      args << { content: 'Sample' }
+      super
+    end
+  end
+end
+
+class Comment < ActiveRecord::Base
+  belongs_to :article
+end
+
+class BugTest < Minitest::Test
+  def test_association_stuff
+    article = Article.create!
+    comment = article.comments.build
+
+    assert_equal comment,  article.comments.first
+    assert_equal 'Sample', article.comments.first.content
+  end
+end