Report rescued recurring enqueue errors to Rails.error

RecurringTask#enqueue rescues Job::EnqueueError (and other-adapter enqueue
failures) but forwarded only the message string to the notification payload,
never calling Rails.error.report. Reporters subscribed via
ActiveSupport::ErrorReporter (Sentry, etc.) therefore never saw recurring
enqueue failures — only a log line — so DB write failures during recurring
enqueue produced missed ticks with no alerting.

Report the rescued exception via Rails.error.report(handled: true) from both the
Solid Queue and other-adapter paths, keeping the non-bubbling behavior and the
notification payload. This aligns the recurring path with the gem's default
on_thread_error reporting.

Fixes #746.

Author: Pissardo

app/models/solid_queue/recurring_task.rb

@@ -86,6 +86,7 @@ def enqueue(at:)
 
           perform_later.tap do |job|
             unless job.successfully_enqueued?
+              report_enqueue_error(job.enqueue_error, at: at)
               payload[:enqueue_error] = job.enqueue_error&.message
             end
           end
@@ -98,6 +99,7 @@ def enqueue(at:)
         payload[:skipped] = true
         false
       rescue Job::EnqueueError => error
+        report_enqueue_error(error, at: at)
         payload[:enqueue_error] = error.message
         false
       end
@@ -198,5 +200,11 @@ def enqueue_options
       def default_time_zone
         SolidQueue.time_zone
       end
+
+      def report_enqueue_error(error, at:)
+        if error
+          Rails.error.report(error, handled: true, source: "application.solid_queue", context: { task: key, at: at })
+        end
+      end
   end
 end

test/models/solid_queue/recurring_task_test.rb

@@ -307,6 +307,46 @@ def perform
     end
   end
 
+  test "reports Job::EnqueueError to Rails.error when enqueuing via Solid Queue" do
+    SolidQueue::Job.stubs(:create!).raises(ActiveRecord::Deadlocked)
+    subscriber = ErrorBuffer.new
+    at = Time.now
+
+    with_error_subscriber(subscriber) do
+      task = recurring_task_with(class_name: "JobWithoutArguments")
+      task.enqueue(at: at)
+    end
+
+    assert_equal 1, subscriber.errors.count
+    error, options = subscriber.errors.first
+    assert_kind_of SolidQueue::Job::EnqueueError, error
+    assert_match "ActiveRecord::Deadlocked", error.message
+    assert_equal true, options[:handled]
+    assert_equal "application.solid_queue", options[:source]
+    assert_equal "task-id", options[:context][:task]
+    assert_equal at, options[:context][:at]
+  end
+
+  test "reports enqueue error to Rails.error when using another adapter" do
+    ActiveJob::QueueAdapters::AsyncAdapter.any_instance.stubs(:enqueue).raises(ActiveJob::EnqueueError.new("All is broken"))
+    subscriber = ErrorBuffer.new
+    at = Time.now
+
+    with_error_subscriber(subscriber) do
+      task = recurring_task_with(class_name: "JobUsingAsyncAdapter")
+      task.enqueue(at: at)
+    end
+
+    assert_equal 1, subscriber.errors.count
+    error, options = subscriber.errors.first
+    assert_kind_of ActiveJob::EnqueueError, error
+    assert_equal "All is broken", error.message
+    assert_equal true, options[:handled]
+    assert_equal "application.solid_queue", options[:source]
+    assert_equal "task-id", options[:context][:task]
+    assert_equal at, options[:context][:at]
+  end
+
   private
     def with_time_zone(zone)
       previous = SolidQueue.time_zone
@@ -344,4 +384,11 @@ def run_all_jobs_inline
         worker.start
       end
     end
+
+    def with_error_subscriber(subscriber)
+      Rails.error.subscribe(subscriber)
+      yield
+    ensure
+      Rails.error.unsubscribe(subscriber) if Rails.error.respond_to?(:unsubscribe)
+    end
 end