perf: 减少采购重复前台查询 (#120)

client/test/test_pdd_u2_purchase_adapter.py

@@ -6,6 +6,7 @@ import unittest
 
 from src.pdd_device_service import PddDeviceService
 from src.pdd_purchase_adapter import PddPurchaseError
+from src.performance_timing import TaskPerformanceTrace
 from src.pdd_u2_purchase_adapter import U2PddPurchaseAdapter
 from src.pdd_u2_purchase_adapter import U2PddLivePurchaseAdapter
 
@@ -251,6 +252,54 @@ class U2PddPurchaseAdapterTest(unittest.TestCase):
         self.assertEqual(device.editor_values, [])
         self.assertEqual(device.app_wait_calls, 0)
 
+    def test_reliable_pdd_tree_skips_repeated_app_current(self):
+        device = FakeDevice()
+        adapter = self._adapter(device, [])
+        adapter.open_goods(GOODS_URL)
+        calls_after_open = device.app_current_calls
+
+        state = adapter.read_state()
+
+        self.assertEqual(state.page_kind, "goods")
+        self.assertEqual(device.app_current_calls, calls_after_open)
+        adapter.close()
+
+    def test_ambiguous_tree_falls_back_to_app_current(self):
+        device = FakeDevice()
+        adapter = self._adapter(device, [])
+        adapter.open_goods(GOODS_URL)
+        calls_after_open = device.app_current_calls
+        device.mode = "special"
+        device.special_xml = (
+            '<hierarchy><node package="com.xunmeng.pinduoduo" '
+            'text="占位"/></hierarchy>'
+        )
+
+        adapter.read_state()
+
+        self.assertEqual(device.app_current_calls, calls_after_open + 1)
+        adapter.close()
+
+    def test_purchase_state_and_option_stages_are_recorded(self):
+        device = FakeDevice()
+        adapter = self._adapter(device, [])
+        records = []
+        trace = TaskPerformanceTrace(sink=records.append)
+        trace.bind_task("PUR-PERFORMANCE")
+
+        with trace.activate():
+            adapter.open_goods(GOODS_URL)
+            adapter.read_state()
+            adapter.select_options(
+                {"color": "黑色", "size": "3XL【140-165斤】"}
+            )
+
+        operations = [record["operation"] for record in records]
+        self.assertIn("purchase_read_state", operations)
+        self.assertIn("purchase_select_color", operations)
+        self.assertIn("purchase_select_size", operations)
+        adapter.close()
+
     def test_same_quantity_does_not_focus_editor(self):
         device = FakeDevice()
         adapter = self._adapter(device, [])
@@ -517,11 +566,13 @@ class U2PddPurchaseAdapterTest(unittest.TestCase):
         adapter.set_quantity(2)
 
         state = adapter.read_state()
+        calls_before_submit = device.app_current_calls
         adapter.submit_order_once()
         with self.assertRaises(PddPurchaseError) as raised:
             adapter.submit_order_once()
 
         self.assertEqual(state.submit_candidate_count, 1)
+        self.assertEqual(device.app_current_calls, calls_before_submit + 1)
         self.assertEqual(raised.exception.code, "PURCHASE_SUBMIT_ALREADY_ATTEMPTED")
         # 依次点击采购入口、数量加号和最终提交。
         self.assertEqual(len(device.clicks), 3)