[openstack|image] Fixed update image and list public images mocks

lib/fog/openstack/requests/image/list_public_images_detailed.rb

@@ -19,7 +19,7 @@ module Fog
       end # class Real
 
       class Mock
-        def list_public_images_detailed
+        def list_public_images_detailed(attribute=nil, query=nil)
           response = Excon::Response.new
           response.status = [200, 204][rand(1)]
           response.body = {"images"=>[{

lib/fog/openstack/requests/image/update_image.rb

@@ -56,7 +56,7 @@ module Fog
                                 "min_ram"=>0,
                                 "owner"=>"728ecc7c10614a1faa6fbabd1a68a4a0",
                                 "properties"=>{}
-                               }
+                               }.merge(Hash[attributes.map { |key, val| [key.to_s, val] }])
                            }
           response
 

tests/openstack/requests/image/image_tests.rb

@@ -56,7 +56,7 @@ Shindo.tests('Fog::Image[:openstack] | image requests', ['openstack']) do
     end
 
     tests('#list_public_images_detailed').formats({'images' => [@image_format]}) do
-      Fog::Image[:openstack].list_public_images.body
+      Fog::Image[:openstack].list_public_images_detailed.body
     end
 
     tests('#create_image').formats({'image' => @image_format}) do