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/delete_attribute_spec.rb

@@ -0,0 +1,39 @@
+require 'rexml/document'
+require File.expand_path('../../../../spec_helper', __FILE__)
+
+describe "REXML::Element#delete_attribute" do
+  before :each do
+    @e = REXML::Element.new("Person")
+    @attr = REXML::Attribute.new("name", "Sean")
+    @e.add_attribute(@attr)
+  end
+
+  it "deletes an attribute from the element" do
+    @e.delete_attribute("name")
+    @e.attributes["name"].should be_nil
+  end
+
+#  Bug was filled with a patch in Ruby's tracker #20298
+  quarantine! do
+    it "receives an Attribute" do
+      @e.add_attribute(@attr)
+      @e.delete_attribute(@attr)
+      @e.attributes["name"].should be_nil
+    end
+  end
+
+  # Docs say that it returns the removed attribute but then examples
+  # show it returns the element with the attribute removed.
+  # Also fixed in #20298
+  it "returns the element with the attribute removed" do
+    elem = @e.delete_attribute("name")
+    elem.attributes.should be_empty
+    elem.to_s.should eql("<Person/>")
+  end
+
+  it "returns nil if the attribute does not exist" do
+    @e.delete_attribute("name")
+    at = @e.delete_attribute("name")
+    at.should be_nil
+  end
+end