pry-byebug-power_assert shows Power Assert style inspection message when you run 'next' command of pry-byebug.
Add this line to your application's Gemfile:
gem 'pry-byebug-power_assert'
And then execute:
$ bundle
Or install it yourself as:
$ gem install pry-byebug-power_assert
Just type next
in pry-byebug session.
Bug reports and pull requests are welcome on GitHub at https://github.com/k-tsj/pry-byebug-power_assert.