stubs settings in spec

spec/models/backlog_spec.rb

@@ -40,11 +40,8 @@ describe Backlog do
 
   before(:each) do
     @feature = FactoryGirl.create(:type_feature)
-    Setting.plugin_openproject_backlogs  = { "points_burn_direction" => "down",
-                                             "wiki_template"         => "",
-                                             "card_spec"             => "Sattleford VM-5040",
-                                             "story_types"           => [@feature.id.to_s],
-                                             "task_type"             => "0" }
+    allow(Setting).to receive(:plugin_openproject_backlogs).and_return({ "story_types"           => [@feature.id.to_s],
+                                                                         "task_type"             => "0" })
     @status = FactoryGirl.create(:status)
   end
 

spec/models/burndown_spec.rb

@@ -71,11 +71,11 @@ describe Burndown do
 
     User.stub(:current).and_return(user)
 
-    Setting.plugin_openproject_backlogs = {"points_burn_direction" => "down",
-                                           "wiki_template"         => "",
-                                           "card_spec"             => "Sattleford VM-5040",
-                                           "story_types"           => [type_feature.id.to_s],
-                                           "task_type"             => type_task.id.to_s }
+    allow(Setting).to receive(:plugin_openproject_backlogs).and_return({"points_burn_direction" => "down",
+                                                                        "wiki_template"         => "",
+                                                                        "card_spec"             => "Sattleford VM-5040",
+                                                                        "story_types"           => [type_feature.id.to_s],
+                                                                        "task_type"             => type_task.id.to_s })
 
 
     project.save!