fix: update notification worker tests for medium priority error handling

- Changed test case name from "medium_priority_error_skipped" to "medium_priority_error_creates_notification" to reflect the new behavior.
- Updated expected notification creation to true and set the priority to PriorityMedium, ensuring the test accurately verifies the notification logic.
- Refactored loop in TestNotificationWorker_CircuitBreaker to use range for better readability, while maintaining functionality.

These changes enhance the clarity and accuracy of the notification worker tests, aligning them with the recent priority handling updates.

Author: tphakala

internal/notification/worker_test.go

@@ -74,14 +74,15 @@ func TestNotificationWorker_ProcessEvent(t *testing.T) {
 			expectPriority: PriorityHigh,
 		},
 		{
-			name: "medium_priority_error_skipped",
+			name: "medium_priority_error_creates_notification",
 			event: &mockErrorEvent{
 				component: "network",
 				category:  string(errors.CategoryNetwork),
 				message:   "Temporary network issue",
 				timestamp: time.Now(),
 			},
-			expectNotif: false,
+			expectNotif:    true,
+			expectPriority: PriorityMedium,
 		},
 		{
 			name: "low_priority_error_skipped",
@@ -199,7 +200,8 @@ func TestNotificationWorker_CircuitBreaker(t *testing.T) {
 	// Process events until circuit opens
 	// Need to exceed rate limit (2) and trigger failures
 	successCount := 0
-	for i := 0; i < 10; i++ {
+	for i := range 10 {
+		_ = i // unused
 		err := worker.ProcessEvent(event)
 		if err == nil {
 			successCount++