fix notification_service specs

app/services/notification_service.rb

@@ -148,7 +148,6 @@ class NotificationService
 
     # build notify method like 'note_commit_email'
     notify_method = "note_#{note.noteable_type.underscore}_email".to_sym
-
     recipients.each do |recipient|
       mailer.send(notify_method, recipient.id, note.id).deliver_later
     end
@@ -371,7 +370,7 @@ class NotificationService
     recipients = build_recipients(target, project, current_user)
 
     recipients.each do |recipient|
-      mailer.send(method, recipient.id, target.id, current_user.id).deliver
+      mailer.send(method, recipient.id, target.id, current_user.id).deliver_later
     end
   end
 
@@ -396,7 +395,7 @@ class NotificationService
     recipients = build_recipients(target, project, current_user)
 
     recipients.each do |recipient|
-      mailer.send(method, recipient.id, target.id, status, current_user.id).deliver
+      mailer.send(method, recipient.id, target.id, status, current_user.id).deliver_later
     end
   end
 

config/environments/test.rb

@@ -32,4 +32,6 @@ Rails.application.configure do
   config.eager_load = false
 
   config.cache_store = :null_store
+
+  config.active_job.queue_adapter = :test
 end

spec/spec_helper.rb

@@ -31,6 +31,7 @@ RSpec.configure do |config|
   config.include StubConfiguration
   config.include RelativeUrl,         type: feature
   config.include TestEnv
+  config.include ActiveJob::TestHelper
   config.include StubGitlabCalls
   config.include StubGitlabData
   config.include BenchmarkMatchers, benchmark: true