Fix issue with Binary properties being treated like normal Strings, w…

…hich breaks dm-validations since it uses =~ /\S/ assuming valid UTF-8

lib/dm-core/property/binary.rb

@@ -2,6 +2,15 @@ module DataMapper
   class Property
     class Binary < String
       include PassThroughLoadDump
+
+      def load(value)
+        super.force_encoding("BINARY") if value
+      end
+
+      def dump(value)
+        super.force_encoding("BINARY") if value
+      end
+
     end # class Binary
   end # class Property
 end # module DataMapper

spec/public/property/binary_spec.rb

@@ -19,4 +19,21 @@
 
     it { should eql(:primitive => @primitive, :length => 50) }
   end
+
+  describe 'encoding' do
+    let(:model) do
+      Class.new do
+        include ::DataMapper::Resource
+        property :bin_data, ::DataMapper::Property::Binary
+      end
+    end
+
+    it 'should always dump with BINARY' do
+      model.bin_data.dump("foo").encoding.names.should include("BINARY")
+    end
+
+    it 'should always load with BINARY' do
+      model.bin_data.load("foo").encoding.names.should include("BINARY")
+    end
+  end
 end