How do I turn on SQL debug logging for ActiveRecord in RSpec tests?

问题

I have some RSpec tests for my models and I would like to turn on SQL ActiveRecord logging just like I see in the Rails server mode. How to do that?

I start my tests with

RAILS_ENV=test bundle exec rspec my/test_spec.rb

Thanks

回答1:

By default, all your db queries will be logged already in test mode. They'll be in log/test.log.

回答2:

You could try setting the ActiveRecord logger to stdout in your test somewhere. If you're using rspec, maybe in the spec helper?

ActiveRecord::Base.logger = Logger.new(STDOUT)

回答3:

set

config.log_level = :info 

in test environment

回答4:

if others answers don't work in your case, please check the 'log level' of your test environment.

its default is 'debug', which will output the SQL generated by Rails. if it was set to "info", the SQL will be missing.

来源：https://stackoverflow.com/questions/5244486/how-do-i-turn-on-sql-debug-logging-for-activerecord-in-rspec-tests