reminder name refactor

test/workers/candidate_reminder_test.rb

@@ -1,14 +1,14 @@
 # frozen_string_literal: true
 require 'test_helper'
 
-class ReminderTest < ActiveSupport::TestCase
+class CandidateReminderTest < ActiveSupport::TestCase
   test "collection is created with one result" do
-    reminders = Reminder.new
+    reminders = CandidateReminder.new
     assert_equal 1, reminders.size
   end
 
   test "each candidate has needed attributes" do
-    reminders = Reminder.new
+    reminders = CandidateReminder.new
 
     assert_instance_of String, reminders.candidates.first.name
     assert_instance_of String, reminders.candidates.first.test_hash
@@ -16,7 +16,7 @@ class ReminderTest < ActiveSupport::TestCase
   end
 
   test "send reminders sends email, and flags reminded" do
-    reminders = Reminder.new
+    reminders = CandidateReminder.new
     pre_reminded = Candidate.find(reminders.candidates.first.id).reminded
 
     assert_difference("ActionMailer::Base.deliveries.size", reminders.count) do