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/rexml/element/add_namespace_spec.rb

@@ -0,0 +1,24 @@
+require 'rexml/document'
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe "REXML::Element#add_namespace" do
+  before :each do
+    @elem = REXML::Element.new("person")
+  end
+
+  it "adds a namespace to element" do
+    @elem.add_namespace("foo", "bar")
+    @elem.namespace("foo").should == "bar"
+  end
+
+  it "accepts a prefix string as prefix" do
+    @elem.add_namespace("xmlns:foo", "bar")
+    @elem.namespace("foo").should == "bar"
+  end
+
+  it "uses prefix as URI if uri is nil" do
+    @elem.add_namespace("some_uri", nil)
+    @elem.namespace.should == "some_uri"
+  end
+end
+