WpItem::Findable#Found_From= specs

lib/common/models/wp_item/findable.rb

@@ -3,10 +3,9 @@
 class WpItem
   attr_reader :found_from
 
-  #def allowed_options; super << :found_from end
-
   def found_from=(method)
-    @found_from = method[%r{find_from_(.*)}, 1].gsub('_', ' ')
+    found       = method[%r{find_from_(.*)}, 1]
+    @found_from = found.gsub('_', ' ') if found
   end
 
   module Findable

spec/lib/common/models/wp_item_spec.rb

@@ -4,6 +4,7 @@ require 'spec_helper'
 
 describe WpItem do
   it_behaves_like 'WpItem::Existable'
+  it_behaves_like 'WpItem::Findable#Found_From='
 
   subject(:wp_item) { WpItem.new(uri, options) }
   let(:uri)         { URI.parse('http://example.com') }

spec/shared_examples/wp_item_findable_found_from.rb

@@ -0,0 +1,23 @@
+# encoding: UTF-8
+
+shared_examples 'WpItem::Findable#Found_From=' do
+
+  describe '#found_from=' do
+    after do
+      subject.found_from = @method
+      subject.found_from.should == @expected
+    end
+    context 'when the pattern is not found' do
+      it 'returns nil' do
+        @method   = 'I_do_not_match'
+        @expected = nil
+      end
+    end
+
+    it 'replaces _ by space' do
+      @method   = 'find_from_some_detection_method'
+      @expected = 'some detection method'
+    end
+  end
+
+end