Question

Only one line of backtrace is displayed when I run:

rake test

Output:

…

ERROR should get search for keywords (1.93s) 
  NoMethodError: undefined method `features' for #<Transcript:0x00000006243780>
  /usr/lib/ruby/gems/1.9.1/gems/activemodel-3.1.0/lib/active_model/attribute_methods.rb:385:in `method_missing'

…

I need more lines of backtrack information.
I have tried

• rake test –trace

• Rails.backtrace_cleaner.remove_silencers! in config/initializers/backtrace_silencers.rb

• setting global $DEBUG=true

and it didn’t work.

How can I turn it on?

Answer 1

BACKTRACE=blegga rake test

BACKTRACE=blegga rails test # rails 5+

Append --trace if you need rake related log.