Add in-tree mspec and ruby/spec

* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

spec/rubyspec/library/rexml/attributes/each_spec.rb

@@ -0,0 +1,25 @@
+require File.expand_path('../../../../spec_helper', __FILE__)
+require 'rexml/document'
+
+describe "REXML::Attributes#each" do
+  before :each do
+    @e = REXML::Element.new("root")
+    @name = REXML::Attribute.new("name", "Joe")
+    @ns_uri = REXML::Attribute.new("xmlns:ns", "http://some_uri")
+    @e.add_attribute @name
+    @e.add_attribute @ns_uri
+  end
+
+  it "iterates over the attributes yielding expanded-name/value" do
+    attributes = []
+    @e.attributes.each do |attr|
+      attr.should be_kind_of(Array)
+      attributes << attr
+    end
+    attributes = attributes.sort_by {|a| a.first }
+    attributes.first.should == ["name", "Joe"]
+    attributes.last.should == ["xmlns:ns", "http://some_uri"]
+  end
+end
+
+