don't risk being stuck in readonly

spec/models/application_request_spec.rb

@@ -19,6 +19,11 @@ describe ApplicationRequest do
     ApplicationRequest.last_flush = Time.now.utc
   end
 
+  context "readonly test" do
+    after do
+      $redis.slaveof("no", "one")
+    end
+
     it 'works even if redis is in readonly' do
       disable_date_flush!
 
@@ -34,6 +39,7 @@ describe ApplicationRequest do
       inc(:http_total, autoflush: 3)
       expect(ApplicationRequest.http_total.first.count).to eq(3)
     end
+  end
 
   it 'logs nothing for an unflushed increment' do
     ApplicationRequest.increment!(:anon)