diff --git a/.github/workflows/rubyonrails.yml b/.github/workflows/rubyonrails.yml
index 250f572c..0677f3bb 100644
--- a/.github/workflows/rubyonrails.yml
+++ b/.github/workflows/rubyonrails.yml
@@ -21,9 +21,9 @@
 name: "GitHub CI"
 on:
   push:
-    branches: ["devel"]
+    branches: ["test"]
   pull_request:
-    branches: ["devel"]
+    branches: ["test"]
 jobs:
   plugin_tests:
     strategy:
diff --git a/app/models/dmsf_mailer.rb b/app/models/dmsf_mailer.rb
index 044c3f80..f3c907fb 100644
--- a/app/models/dmsf_mailer.rb
+++ b/app/models/dmsf_mailer.rb
@@ -166,18 +166,23 @@ class DmsfMailer < Mailer
 
   # force_notification = true => approval workflow's notifications
   def self.get_notify_users(project, file, force_notification: false)
+    puts ">>> self.get_notify_users"
     return [] unless project.active?
-
+    puts ">>> ok1"
     # Notifications
     if (force_notification && Setting.notified_events.include?('dmsf_workflow_plural')) ||
        (Setting.notified_events.include?('dmsf_legacy_notifications') && file&.notify?)
+      puts ">>> ok2"
       notify_members = project.members.active.select do |notify_member|
         notify_user = notify_member.user
         if notify_user == User.current && notify_user.pref.no_self_notified
+          puts ">>> nok1"
           false
         elsif notify_member.dmsf_mail_notification.nil?
+          puts ">>> #{notify_user.mail_notification}"
           case notify_user.mail_notification
           when 'all'
+            puts ">>> ok3"
             true
           when 'selected'
             notify_member.mail_notification?
@@ -188,6 +193,7 @@ class DmsfMailer < Mailer
           when 'only_assigned'
             file.assigned? notify_user
           else
+            puts ">>> nok2"
             false
           end
         else
diff --git a/test/unit/dmsf_mailer_test.rb b/test/unit/dmsf_mailer_test.rb
index eadffa2f..aa671a64 100644
--- a/test/unit/dmsf_mailer_test.rb
+++ b/test/unit/dmsf_mailer_test.rb
@@ -105,6 +105,8 @@ class DmsfMailerTest < RedmineDmsf::Test::UnitTest
 
   def test_get_notify_users
     with_settings notified_events: ['dmsf_legacy_notifications'] do
+      puts ">>> #{Setting.notified_events}"
+      puts ">>> #{@file1.notify?}"
       users = DmsfMailer.get_notify_users(@project1, @file1)
       assert users.present?
     end