fix: mailer specs for Rails 8- and 8+

spec/isolator/adapters/background_jobs/active_job_spec.rb

@@ -18,7 +18,7 @@
       expect { ActiveJobWorker.perform_later("test") }.to raise_error(Isolator::BackgroundJobError, /ActiveJobWorker.+test/)
     end
 
-    context "with enqueue_after_transaction_commit", :rails72 do
+    context "with enqueue_after_transaction_commit", :rails8 do
       after { reset_enqueue_after_transaction_commit }
 
       context "configured to :always" do
@@ -73,20 +73,11 @@
       private
 
       def set_enqueue_after_transaction_commit_to(value)
-        Rails.application.config.active_job.enqueue_after_transaction_commit = value
-        run_enqueue_after_transaction_commit_initializer
-        ActiveJobWorker.enqueue_after_transaction_commit = value # manually (re)set for subclass
+        ActiveJob::Base.enqueue_after_transaction_commit = value
       end
 
       def reset_enqueue_after_transaction_commit
-        Rails.application.config.active_job.enqueue_after_transaction_commit = :default
-        run_enqueue_after_transaction_commit_initializer
-        ActiveJobWorker.enqueue_after_transaction_commit = :default # manually (re)set for subclass
-        allow(ActiveJob::Base.queue_adapter).to receive(:enqueue_after_transaction_commit?) { true }
-      end
-
-      def run_enqueue_after_transaction_commit_initializer
-        Rails.application.initializers.find { |i| i.name == "active_job.enqueue_after_transaction_commit" }.run
+        ActiveJob::Base.enqueue_after_transaction_commit = :never
       end
     end
   end

spec/spec_helper.rb

@@ -29,9 +29,11 @@
 RSpec.configure do |config|
   config.example_status_persistence_file_path = ".rspec_status"
   config.filter_run focus: true
-  # TODO: replace with `Rails.version >= Gem::Version.new("7.2")` once 7.2 is released
-  unless Rails::VERSION::MAJOR >= 7 && Rails::VERSION::MINOR >= 2
-    config.filter_run_excluding :rails72
+  # TODO: remove first condition once 8.0 is released
+  if (Rails::VERSION::MAJOR >= 7 && Rails::VERSION::MINOR >= 2) || (Rails::VERSION::MAJOR >= 8)
+    config.filter_run_excluding :rails_pre_8
+  else
+    config.filter_run_excluding :rails8
   end
   config.run_all_when_everything_filtered = true
 

spec/support/active_job_init.rb

@@ -5,3 +5,7 @@
 
 ActiveJob::Base.queue_adapter = :test
 ActiveJob::Base.logger = Logger.new(IO::NULL)
+# disable transactional commits by default
+if ActiveJob::Base.respond_to?(:enqueue_after_transaction_commit=)
+  ActiveJob::Base.enqueue_after_transaction_commit = :never
+end