Remove activerecord dependency

features/fixtures/que/app/Gemfile

@@ -6,7 +6,6 @@ que_version = ENV.fetch("QUE_VERSION")
 gem "que", "~> #{que_version}"
 
 gem "pg", RUBY_VERSION < "2.2.0" ? "0.21.0" : "> 0.21.0"
-gem "activerecord", RUBY_VERSION < "2.2.0" ? "4.2.11" : "> 4.2.11"
 
 # Install a compatible Minitest version on Ruby <2.3
 gem 'minitest', '5.11.3' if RUBY_VERSION < '2.3.0'

features/fixtures/que/app/setup-que.rb

@@ -2,7 +2,6 @@
 require 'que'
 require 'socket'
 require 'bugsnag'
-require 'active_record'
 
 QUE_VERSION = ENV.fetch("QUE_VERSION")
 
@@ -30,15 +29,20 @@
 
 raise 'postgres was not ready in time!' unless postgres_ready
 
-ActiveRecord::Base.establish_connection(
-  adapter: 'postgresql',
-  database: 'postgres',
-  username: 'postgres',
+connection = PG::Connection.open(
+  host: 'postgres',
+  user: 'postgres',
   password: 'test_password',
-  host: 'postgres'
+  dbname: 'postgres'
 )
 
-Que.connection = ActiveRecord
+if QUE_VERSION < '1'
+  Que.connection = connection
+else
+  Que.connection_proc = do |block|
+    block.call(connection)
+  end
+end
 
 # Workaround a bug in que/pg
 # see https://github.com/que-rb/que/issues/247