Fixes #9456 - Validate docker registry URL

Author: dLobatog

app/models/docker_registry.rb

@@ -8,6 +8,7 @@ class DockerRegistry < ActiveRecord::Base
 
   validates_lengths_from_database
   validates :name, :presence => true, :uniqueness => true
+  validates :url,  :presence => true, :uniqueness => true
 
   scoped_search :on => :name, :complete_value => true
   scoped_search :on => :url

test/units/docker_registry_test.rb

@@ -22,8 +22,9 @@ class DockerRegistryTest < ActiveSupport::TestCase
     assert registry.is_decryptable?(registry.password_in_db)
   end
 
-  test 'registries need a name' do
-    registry = FactoryGirl.build(:docker_registry, :name => '')
-    refute registry.valid?
+  %w(name url).each do |property|
+    test "registries need a #{property}" do
+      refute FactoryGirl.build(:docker_registry, property.to_sym => '').valid?
+    end
   end
 end