diff --git a/plugins/metadata/test/functional/home_controller_test.rb b/plugins/metadata/test/functional/home_controller_test.rb
index b9f75d4..b3c8c24 100644
--- a/plugins/metadata/test/functional/home_controller_test.rb
+++ b/plugins/metadata/test/functional/home_controller_test.rb
@@ -11,8 +11,9 @@ class HomeControllerTest < ActionController::TestCase
     @request    = ActionController::TestRequest.new
     @response   = ActionController::TestResponse.new
 
-    Noosfero::Plugin.stubs(:all).returns([MetadataPlugin.name])
-    Noosfero::Plugin::Manager.any_instance.stubs(:enabled_plugins).returns([MetadataPlugin.new(@controller)])
+    @environment = Environment.default
+    @environment.enabled_plugins += ['MetadataPlugin']
+    @environment.save!
   end
 
   should 'display meta tags for social media' do
diff --git a/plugins/metadata/test/functional/manage_products_controller_test.rb b/plugins/metadata/test/functional/manage_products_controller_test.rb
index 3c4be1e..bc39504 100644
--- a/plugins/metadata/test/functional/manage_products_controller_test.rb
+++ b/plugins/metadata/test/functional/manage_products_controller_test.rb
@@ -16,8 +16,8 @@ class ManageProductsControllerTest < ActionController::TestCase
     @environment.enable('products_for_enterprises')
     login_as :test_user
 
-    Noosfero::Plugin.stubs(:all).returns([MetadataPlugin.name])
-    Noosfero::Plugin::Manager.any_instance.stubs(:enabled_plugins).returns([MetadataPlugin.new(@controller)])
+    @environment.enabled_plugins += ['MetadataPlugin']
+    @environment.save!
   end
 
   should "not crash on new products" do
--
libgit2 0.21.2