$ bundle exec rake test TEST=test/unit/parameter_filter_test.rb TESTOPTS=-v
#<Mocha::Mock:0x0000557bf12cf750>#test_0002_permits plugin-added attributes from blocks = 0.49 s = .
#<Mocha::Mock:0x0000557bf1f22e30>#test_0001_permits plugin-added attribute = 0.04 s = .