lib/dm/matchers/validate_presence_of.rb in dm-rspec-0.1.2 vs lib/dm/matchers/validate_presence_of.rb in dm-rspec-0.2.0

@@ -6,10 +6,12 @@
 
     class ValidatePresenceOf < ValidationMatcher
       set_validation_subject "presence"
 
       def matches?(model)
-        validators = model.validators.contexts[:default]
+        model_class = model.is_a?(Class) ? model : model.class
+
+        validators = model_class.validators.contexts[:default]
         presence_of = validators.find do |validator|
           validator.is_a? DataMapper::Validations::PresenceValidator and validator.field_name == @property
         end
         return false unless presence_of
         return false if @msg and @msg != presence_of.options[:message]