How can I mute Rails 3 deprecation warnings selectively?

Question

I am upgrading a Rails 2 to Rails 3 application (code not written by me). The (well tested code) uses shoulda and Test::Unit, and extensively uses the macros should_create and should_change.

I understand from this discussion that the shoulda maintainers want to get rid of both methods but that people using Test::Unit don't find it necessary (not sure I am grasping the whole discussion though).

Anaway, is there a way to selectively turn of the deprecation warnings for specified macros? I already know from this posting that you can turn off the deprecation warnings in the Rake test output entirely by setting:

ActiveSupport::Deprecation.silenced = true

in your the test environment file and I also know that you can put specific pieces of code in a block to get them silenced:

ActiveSupport::Deprecation.silence do
# no warnings for any use of deprecated methods here
end

The latter is an option but would require me to go over all the tests and enclose the should_create macros in such a block. So I was wondering there was a way to eliminate warnings for specific macros entirely with one configuration setting?

Answer 1

Old question - but if you have new depreciations you'd like to selectively ignore:

ActiveSupport::Deprecation.behavior = lambda do |msg, stack| 
  unless /LIBRARY_NAME/ =~ msg
    ActiveSupport::Deprecation::DEFAULT_BEHAVIORS[:stderr].call(msg,stack) # whichever handlers you want - this is the default
  end
end

This is for ActiveSupport 3.