Avoid raise_in_transactional_callbacks warning

test/paranoia_test.rb

@@ -5,6 +5,10 @@ require 'paranoia'
 
 test_framework = defined?(MiniTest::Test) ? MiniTest::Test : MiniTest::Unit::TestCase
 
+if ActiveRecord::Base.respond_to?(:raise_in_transactional_callbacks=)
+  ActiveRecord::Base.raise_in_transactional_callbacks = true
+end
+
 def connect!
   ActiveRecord::Base.establish_connection :adapter => 'sqlite3', database: ':memory:'
 end