converted the document_category_test to rspec.

spec/models/document_category_spec.rb

@@ -0,0 +1,40 @@
+#-- copyright
+# OpenProject is a project management system.
+#
+# Copyright (C) 2012-2013 the OpenProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+require File.dirname(__FILE__) + '/../spec_helper'
+
+
+describe DocumentCategory do
+
+  let(:project) {FactoryGirl.create(:project)}
+
+  it "should be an enumeration" do
+    expect(DocumentCategory.ancestors).to include Enumeration
+  end
+
+  it "should order documents by the category they are created with" do
+    uncategorized  = FactoryGirl.create :document_category, :name => "Uncategorized", :project => project
+    user_documentation = FactoryGirl.create :document_category, :name => "User documentation"
+
+    FactoryGirl.create_list :document, 2, :category => uncategorized, :project => project
+
+    expect(DocumentCategory.find_by_name(uncategorized.name).objects_count).to eql 2
+    expect(DocumentCategory.find_by_name(user_documentation.name).objects_count).to eql 0
+
+  end
+
+  it "should file the categorizations under the option name :enumeration_doc_categories" do
+    expect(DocumentCategory.new.option_name).to eql  :enumeration_doc_categories
+  end
+
+end
+
+
+