gitlab-org--gitlab-foss/spec/support/database_connection_helpers.rb

module DatabaseConnectionHelpers
  def run_with_new_database_connection
    pool = ActiveRecord::Base.connection_pool
    conn = pool.checkout
    yield conn
  ensure
    pool.checkin(conn)
  end
end
Write a spec covering the race condition during group deletion. - Use multiple threads / database connections to: 1. Escape the transaction the spec seems to be running in (`config.use_transactional_fixtures` is off, but `ActiveRecord::Base.connection.open_transactions` is not empty at the beginning of the spec. 2. Simulate a Sidekiq worker performing the hard delete outside of the soft-delete transaction. - The spec is a little clunky, but it was the smallest thing I could get working - and even this took a couple of hours. Let me know if you have any suggestions to improve it! 2016-11-17 13:53:42 +00:00			`module DatabaseConnectionHelpers`
			`def run_with_new_database_connection`
			`pool = ActiveRecord::Base.connection_pool`
			`conn = pool.checkout`
			`yield conn`
			`ensure`
			`pool.checkin(conn)`
			`end`
			`end`