added test for jobs, validators and helper

test/jobs/domain_delete_job_test.rb

@@ -0,0 +1,20 @@
+require "test_helper"
+
+class DomainDeleteJobTest < ActiveSupport::TestCase
+  setup do
+    travel_to Time.zone.parse('2010-07-05')
+    @domain = domains(:shop)
+    @domain.update!(delete_date:'2010-07-05')
+    @domain.reload
+  end
+
+  def test_delete_domain
+    dom = Domain.find_by(id: @domain.id)
+    assert dom
+
+    DomainDeleteJob.run(@domain.id)
+
+    dom = Domain.find_by(id: @domain.id)
+    assert_nil dom
+  end
+end