tests pass with rake test but fail on gem test

[banister]

relevant test is here: http://test.rubygems.org/gems/pry/v/0.9.1/test_results/1694

running on windows XP with ruby 1.8.7

tests pass np on other platforms

[pierot]

I have the same scenario.
All tests pass in my dev repo, after installation if I go to the directory where the gem is installed 'rake test' will pass, but 'gem test' will generate this result:

/Users/pieterm/.rvm/rubies/ruby-1.9.2-p290/lib/
(in /Volumes/data/Users/pieterm/.rvm/gems/ruby-1.9.2-p290/gems/stockery-0.4.1)

And it says it has failed.