Import RubyGems trunk revision 1493.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13862 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/rubygems/mockgemui.rb

@@ -0,0 +1,51 @@
+#!/usr/bin/env ruby
+#--
+# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
+# All rights reserved.
+# See LICENSE.txt for permissions.
+#++
+
+
+require 'stringio'
+require 'rubygems/user_interaction'
+
+class MockGemUi < Gem::StreamUI
+  class TermError < RuntimeError; end
+
+  def initialize(input="")
+    super(StringIO.new(input), StringIO.new, StringIO.new)
+    @terminated = false
+    @banged = false
+  end
+  
+  def input
+    @ins.string
+  end
+
+  def output
+    @outs.string
+  end
+
+  def error
+    @errs.string
+  end
+
+  def banged?
+    @banged
+  end
+
+  def terminated?
+    @terminated
+  end
+
+  def terminate_interaction!(status=1)
+    @terminated = true 
+    @banged = true
+    fail TermError
+  end
+
+  def terminate_interaction(status=0)
+    @terminated = true
+    fail TermError
+  end
+end