[ActiveJob] Add hook for test_framework and test templates

activejob/lib/rails/generators/job/job_generator.rb

@@ -7,12 +7,14 @@ class JobGenerator < Rails::Generators::NamedBase # :nodoc:
 
       class_option :queue, type: :string, default: 'default', desc: 'The queue name for the generated job'
 
+      check_class_collision suffix: 'Job'
+
+      hook_for :test_framework
+
       def self.default_generator_root
         File.dirname(__FILE__)
       end
 
-      check_class_collision suffix: 'Job'
-
       def create_job_file
         template 'job.rb', File.join('app/jobs', class_path, "#{file_name}_job.rb")
       end

railties/lib/rails/generators/test_unit/job/job_generator.rb

+require 'rails/generators/test_unit'
+
+module TestUnit # :nodoc:
+  module Generators # :nodoc:
+    class JobGenerator < Base # :nodoc:
+      check_class_collision suffix: 'JobTest'
+
+      def create_test_file
+        template 'unit_test.rb.erb', File.join('test/job', class_path, "#{file_name}_test.rb")
+      end
+    end
+  end
+end

railties/lib/rails/generators/test_unit/job/templates/unit_test.rb.erb

+require 'test_helper'
+
+<% module_namespacing do -%>
+class <%= class_name %>JobTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end
+<% end -%>