Move spec/rubyspec to spec/ruby for consistency

* Other ruby implementations use the spec/ruby directory.
  [Misc #13792] [ruby-core:82287]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/ruby/library/stringio/getch_spec.rb

@@ -0,0 +1,46 @@
+# -*- encoding: utf-8 -*-
+require File.expand_path('../../../spec_helper', __FILE__)
+require 'stringio'
+require File.expand_path('../shared/getc', __FILE__)
+
+# This method is added by io/console on require.
+describe "StringIO#getch" do
+  require 'io/console'
+
+  it_behaves_like :stringio_getc, :getch
+
+  it "returns the charactor at the current position" do
+    io = StringIO.new("example")
+
+    io.send(@method).should == ?e
+    io.send(@method).should == ?x
+    io.send(@method).should == ?a
+  end
+
+  with_feature :encoding do
+    it "increments #pos by the byte size of the character in multibyte strings" do
+      io = StringIO.new("föóbar")
+
+      io.send(@method); io.pos.should == 1 # "f" has byte size 1
+      io.send(@method); io.pos.should == 3 # "ö" has byte size 2
+      io.send(@method); io.pos.should == 5 # "ó" has byte size 2
+      io.send(@method); io.pos.should == 6 # "b" has byte size 1
+    end
+  end
+
+  it "returns nil at the end of the string" do
+    # empty string case
+    io = StringIO.new("")
+    io.send(@method).should == nil
+    io.send(@method).should == nil
+
+    # non-empty string case
+    io = StringIO.new("a")
+    io.send(@method) # skip one
+    io.send(@method).should == nil
+  end
+
+  describe "StringIO#getch when self is not readable" do
+    it_behaves_like :stringio_getc_not_readable, :getch
+  end
+end