Fix specs.

spec/components/post_creator_spec.rb

@@ -301,13 +301,11 @@ describe PostCreator do
 
         it "updates topic's auto close date when it's based on last post" do
           Timecop.freeze do
-            topic = Fabricate(:topic,
-              topic_timers: [Fabricate(:topic_timer,
-                based_on_last_post: true,
-                execute_at: Time.zone.now - 12.hours,
-                created_at: Time.zone.now - 24.hours
-              )]
-            )
+            topic = Fabricate(:topic_timer,
+              based_on_last_post: true,
+              execute_at: Time.zone.now - 12.hours,
+              created_at: Time.zone.now - 24.hours
+            ).topic
 
             Fabricate(:post, topic: topic)
 

spec/integration/managing_topic_status_spec.rb

@@ -60,7 +60,7 @@ RSpec.describe "Managing a topic's status update", type: :request do
     end
 
     it 'should be able to delete a topic status update' do
-      topic.update!(topic_timers: [Fabricate(:topic_timer)])
+      Fabricate(:topic_timer, topic: topic)
 
       post "/t/#{topic.id}/timer.json",
         time: nil,

spec/jobs/toggle_topic_closed_spec.rb

@@ -60,9 +60,7 @@ describe Jobs::ToggleTopicClosed do
 
   describe 'when user is not authorized to close topics' do
     let(:topic) do
-      Fabricate(:topic,
-        topic_timers: [Fabricate(:topic_timer, execute_at: 2.hours.from_now)]
-      )
+      Fabricate(:topic_timer, execute_at: 2.hours.from_now).topic
     end
 
     it 'should not do anything' do

spec/models/topic_spec.rb

@@ -1155,9 +1155,7 @@ describe Topic do
     let(:topic) { Fabricate.build(:topic) }
 
     let(:closing_topic) do
-      Fabricate(:topic,
-        topic_timers: [Fabricate(:topic_timer, execute_at: 5.hours.from_now)]
-      )
+      Fabricate(:topic_timer, execute_at: 5.hours.from_now).topic
     end
 
     let(:admin) { Fabricate(:admin) }