# File activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb, line 356
356:       def initialize(app)
357:         @app = app
358:       end

     # File activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb, line 360
360:       def call(env)
361:         @app.call(env)
362:       ensure
363:         # Don't return connection (and peform implicit rollback) if
364:         # this request is a part of integration test
365:         unless env.key?("rack.test")
366:           ActiveRecord::Base.clear_active_connections!
367:         end
368:       end