Fix tests

app/services/send_push_notification_service.rb

@@ -23,6 +23,6 @@ class SendPushNotificationService < BaseService
   end
 
   def remove_bad_ids(bad_ids)
-  	Device.where(registration_id: bad_ids).delete_all
+    Device.where(registration_id: bad_ids).delete_all unless bad_ids.empty?
   end
 end

spec/spec_helper.rb

@@ -13,7 +13,11 @@ RSpec.configure do |config|
     mocks.verify_partial_doubles = true
   end
 
-  config.after(:suite) do
+  config.before :each do
+    stub_request(:post, 'https://fcm.googleapis.com/fcm/send').to_return(status: 200, body: '')
+  end
+
+  config.after :suite do
     FileUtils.rm_rf(Dir["#{Rails.root}/spec/test_files/"])
   end
 end