1 files changed, 15 insertions, 4 deletions
diff --git a/lib/rubygems/test_case.rb b/lib/rubygems/test_case.rb
index 691985dcd2..ebfe979a1b 100644
--- a/lib/rubygems/test_case.rb
+++ b/lib/rubygems/test_case.rb
@@ -78,6 +78,20 @@ module Gem
   end
 end
 
+require "rubygems/command"
+
+class Gem::Command
+
+  ##
+  # Allows resetting the hash of specific args per command.  This method is
+  # available when requiring 'rubygems/test_case'
+
+  def self.specific_extra_args_hash=(value)
+    @specific_extra_args_hash = value
+  end
+
+end
+
 ##
 # RubyGemTestCase provides a variety of methods for testing rubygems and
 # gem-related behavior in a sandbox.  Through RubyGemTestCase you can install
@@ -1246,10 +1260,7 @@ Also, a list:
     end
 
     begin
-      require "rbconfig"
-      File.join(RbConfig::CONFIG["bindir"],
-                RbConfig::CONFIG["ruby_install_name"] +
-                RbConfig::CONFIG["EXEEXT"])
+      Gem.ruby
     rescue LoadError
       "ruby"
     end