Import rubygems 1.5.0 (release candidate @ 09893d9)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30717 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

lib/rubygems/mock_gem_ui.rb

@@ -0,0 +1,69 @@
+######################################################################
+# This file is imported from the rubygems project.
+# DO NOT make modifications in this repo. They _will_ be reverted!
+# File a patch instead and assign it to Ryan Davis or Eric Hodel.
+######################################################################
+
+require 'stringio'
+require 'rubygems/user_interaction'
+
+##
+# This Gem::StreamUI subclass records input and output to StringIO for
+# retrieval during tests.
+
+class Gem::MockGemUi < Gem::StreamUI
+  class TermError < RuntimeError; end
+
+  module TTY
+
+    attr_accessor :tty
+
+    def tty?()
+      @tty = true unless defined?(@tty)
+      @tty
+    end
+
+    def noecho
+      yield self
+    end
+  end
+
+  def initialize(input = "")
+    ins = StringIO.new input
+    outs = StringIO.new
+    errs = StringIO.new
+
+    ins.extend TTY
+    outs.extend TTY
+    errs.extend TTY
+
+    super ins, outs, errs
+
+    @terminated = false
+  end
+
+  def input
+    @ins.string
+  end
+
+  def output
+    @outs.string
+  end
+
+  def error
+    @errs.string
+  end
+
+  def terminated?
+    @terminated
+  end
+
+  def terminate_interaction(status=0)
+    @terminated = true
+
+    raise TermError unless status == 0
+    raise Gem::SystemExitException, status
+  end
+
+end
+