spec: Add test for checkpoints created notification.

closes VICE-4038
flag=discussion_checkpoints

Test plan:
 - Specs pass.

Change-Id: I872382039db82fa9292ae015c259b4e33c9ba80f
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/346553
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: Jason Gillett <jason.gillett@instructure.com>
QA-Review: Jason Gillett <jason.gillett@instructure.com>
Product-Review: Omar Soto-Fortuño <omar.soto@instructure.com>

spec/messages/checkpoints_created.erb_spec.rb

@@ -0,0 +1,85 @@
+# frozen_string_literal: true
+
+#
+# Copyright (C) 2024 - 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/>.
+#
+
+require_relative "messages_helper"
+
+describe "checkpoints_created" do
+  include TextHelper
+
+  before :once do
+    course_model
+    @course.root_account.enable_feature!(:discussion_checkpoints)
+
+    topic = graded_discussion_topic(context: @course)
+
+    @reply_to_topic_due_date = 2.days.from_now
+    @reply_to_entry_due_date = 5.days.from_now
+    @replies_required = 3
+
+    @reply_to_topic_checkpoint = Checkpoints::DiscussionCheckpointCreatorService.call(
+      discussion_topic: topic,
+      checkpoint_label: CheckpointLabels::REPLY_TO_TOPIC,
+      dates: [{ type: "everyone", due_at: @reply_to_topic_due_date }],
+      points_possible: 5
+    )
+
+    Checkpoints::DiscussionCheckpointCreatorService.call(
+      discussion_topic: topic,
+      checkpoint_label: CheckpointLabels::REPLY_TO_ENTRY,
+      dates: [{ type: "everyone", due_at: @reply_to_entry_due_date }],
+      points_possible: 15,
+      replies_required: @replies_required
+    )
+  end
+
+  let(:asset) { @reply_to_topic_checkpoint }
+  let(:notification_name) { :checkpoints_created }
+
+  include_examples "a message"
+
+  describe "email" do
+    let(:path_type) { :email }
+
+    it "renders" do
+      msg = generate_message(notification_name, path_type, asset)
+      expect(msg.subject).to include "Assignment Created - #{asset.parent_assignment.discussion_topic.title}, #{@context.name}"
+
+      expect(msg.body).to include "A new assignment has been created for your course, #{asset.context.name}"
+      expect(msg.body).to include asset.parent_assignment.discussion_topic.title
+      expect(msg.body).to include "due: reply to topic: #{datetime_string(@reply_to_topic_due_date)}"
+      expect(msg.body).to include "additional replies (#{@replies_required}): #{datetime_string(@reply_to_entry_due_date)}"
+    end
+
+    it "renders No Due Date if due dates are nil" do
+      parent_assignment = asset.parent_assignment
+
+      reply_to_topic_checkpoint = parent_assignment.sub_assignments.find_by(sub_assignment_tag: CheckpointLabels::REPLY_TO_TOPIC)
+      reply_to_entry_checkpoint = parent_assignment.sub_assignments.find_by(sub_assignment_tag: CheckpointLabels::REPLY_TO_ENTRY)
+
+      reply_to_topic_checkpoint.update!(due_at: nil)
+      reply_to_entry_checkpoint.update!(due_at: nil)
+
+      msg = generate_message(notification_name, path_type, asset)
+
+      expect(msg.body).to include "due: reply to topic: No Due Date"
+      expect(msg.body).to include "additional replies (#{@replies_required}): No Due Date"
+    end
+  end
+end