Make #unmatching_mail_jobs working with frozen warning in Ruby 3.4

rspec · Dec 20, 2024 · 11b5ced · 11b5ced
1 parent a0dc958
commit 11b5ced
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/lib/rspec/rails/matchers/have_enqueued_mail.rb b/lib/rspec/rails/matchers/have_enqueued_mail.rb
@@ -129,13 +129,13 @@ def unmatching_mail_jobs
         end
 
         def unmatching_mail_jobs_message
-          msg = "Queued deliveries:"
+          messages = ["Queued deliveries:"]
 
           unmatching_mail_jobs.each do |job|
-            msg << "\n  #{mail_job_message(job)}"
+            messages << "  #{mail_job_message(job)}"
           end
 
-          msg
+          messages.join("\n")
         end
 
         def mail_job_message(job)