fix: 识别失效商品链接返回首页 (#111)

client/test/test_collect_task_service.py

@@ -164,6 +164,19 @@ class CollectTaskServiceTest(unittest.TestCase):
         )
         self.assertEqual(self.gateway.submission_count, 1)
 
+    def test_unavailable_goods_is_terminal_but_allows_next_task(self):
+        message = "商品链接已失效，PDD 无法打开商品详情页并返回了首页"
+        outcome = self._service(
+            [], PddCollectError("PDD_GOODS_UNAVAILABLE", message)
+        ).execute_one()
+
+        self.assertEqual("business_failed", outcome.kind)
+        self.assertEqual(message, outcome.message)
+        detail = self.repository.get_task("COL-001")
+        self.assertEqual(TaskStatus.FAILED, detail.status)
+        self.assertEqual("PDD_GOODS_UNAVAILABLE", detail.last_error_code)
+        self.assertEqual(1, self.gateway.submission_count)
+
     def test_execute_selected_only_runs_requested_local_task(self):
         for task_id in ("COL-SELECTED", "COL-OTHER"):
             self.repository.add_claimed_task(