spec: Manually create a delayed job in a fixture file

Having a delayed job with an id of 1 causes a conflict later when
inst-jobs automatically creates a job also with an id of 1. As a
workaround, manually create one with an id of 2.

fixes INTEROP-6439

Change-Id: I3a8842bf0073972293cc83c3bfd263ab1fa57053
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/256383
Reviewed-by: Wagner Goncalves <wagner.goncalves@instructure.com>
QA-Review: Tucker Mcknight <tmcknight@instructure.com>
Product-Review: Tucker Mcknight <tmcknight@instructure.com>
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>

lib/cdc_migration_testing/fixtures/delayed/backend/active_record/job.rb

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+#
+# Copyright (C) 2020 - present Instructure, Inc.
+#
+# This file is part of Canvas.
+#
+# Canvas is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the Free
+# Software Foundation, version 3 of the License.
+#
+# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Affero General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+module CdcFixtures
+  def self.create_job
+    # The model-generator can successfully auto-create a delayed job model.
+    # However, this causes a problem when a PluginSetting model is created.
+    # When a PluginSetting is created, it also creates a delayed job (the
+    # inst-jobs gem does this automatically), and that job gets an id of 1
+    # for some reason, even though a job with id=1 already exists. The new job
+    # id doesn't get auto-incremented to 2.
+    # I couldn't figure out why that was happening, so this is a workaround.
+    # Manually create a delayed job here, with an id of 2, so that the
+    # other job created along with the PluginSetting can use id 1.
+    return Delayed::Backend::ActiveRecord::Job.new(
+      id: 2,
+      run_at: Time.zone.now,
+    )
+  end
+end