ActiveResource validation tests did not test ActiveModel validations. Adjust...

ActiveResource validation tests did not test ActiveModel validations. Adjust the test to be done the Rails3 way.
Signed-off-by: NSantiago Pastorino <santiago@wyeworks.com>

activeresource/test/cases/validations_test.rb

@@ -48,6 +48,12 @@ def test_validate_callback
     assert p.save, "should have saved after fixing the validation, but had: #{p.errors.inspect}"
   end
 
+  def test_client_side_validation_maximum
+    project = Project.new(:description => '123456789012345')
+    assert ! project.valid?
+    assert_equal ['is too long (maximum is 10 characters)'], project.errors[:description]
+  end
+
   protected
 
   # quickie helper to create a new project with all the required

activeresource/test/fixtures/project.rb

 # used to test validations
 class Project < ActiveResource::Base
   self.site = "http://37s.sunrise.i:3000"
+  schema do
+    string  :email
+    string  :name
+  end
 
-  validates_presence_of :name
+  validates :name, :presence => true
+  validates :description, :presence => false, :length => {:maximum => 10}
   validate :description_greater_than_three_letters
 
   # to test the validate *callback* works
   def description_greater_than_three_letters
     errors.add :description, 'must be greater than three letters long' if description.length < 3 unless description.blank?
   end
-
-
-  # stop-gap accessor to default this attribute to nil
-  # Otherwise the validations fail saying that the method does not exist.
-  # In future, method_missing will be updated to not explode on a known
-  # attribute.
-  def name
-    attributes['name'] || nil
-  end
-  def description
-    attributes['description'] || nil
-  end
 end