build_rake_in()
Allows the proper version of rake to be used for the test.
# File lib/rubygems/test_case.rb, line 786 def build_rake_in gem_ruby = Gem.ruby Gem.ruby = @@ruby env_rake = ENV["rake"] ENV["rake"] = @@rake yield @@rake ensure Gem.ruby = gem_ruby if env_rake ENV["rake"] = env_rake else ENV.delete("rake") end end