默认重量

tests/Feature/PurchaseEditTest.php

@@ -282,7 +282,7 @@ class PurchaseEditTest extends ProcurementTestCase
         $this->assertSame('50.00', (string) $order->total_amount);
 
         $purchase = $purchase->fresh();
-        $this->assertSame('4.500', (string) $purchase->total_weight);
+        $this->assertSame('7.500', (string) $purchase->total_weight, '4.500 手动称重 + B 店参考重量 3.000');
         $this->assertSame('80.00', (string) $purchase->estimate_amount, '8 包 × 每包成本 10.00（称重仅参考，不参与金额）');
     }
 
@@ -392,7 +392,7 @@ class PurchaseEditTest extends ProcurementTestCase
         $purchase = $purchase->fresh();
         $this->assertSame('9.00', (string) $purchase->total_quantity, '2+3+4');
         $this->assertSame('82.00', (string) $purchase->estimate_amount, '50+32（4 包 × 成本 8.00）');
-        $this->assertSame('1.500', (string) $purchase->total_weight);
+        $this->assertSame('6.500', (string) $purchase->total_weight, '原有参考重量 2+3 斤 + 新增 1.500');
 
         // 重复添加同一商品 → 拒绝
         $this->postJson("/purchase/order/{$purchase->id}/store/{$stores[0]->id}/item", [
@@ -402,6 +402,28 @@ class PurchaseEditTest extends ProcurementTestCase
             ->assertJsonPath('msg', '该商品已在此门店采购明细中，请直接修改数量');
     }
 
+    /** 门店购买详情-新增单品未传称重：按订货量 × 规格预填参考重量并级联汇总 */
+    public function test_store_item_add_defaults_reference_weight(): void
+    {
+        [$purchase, , $stores] = $this->buildPurchase();
+        $extra = ProductModel::factory()->create([
+            'status' => ProductModel::STATUS_ON,
+            'cost_price' => 8,
+            'spec' => '25斤/袋',
+            'unit' => '袋',
+        ]);
+        $this->actingAsSysUser();
+
+        $this->postJson("/purchase/order/{$purchase->id}/store/{$stores[0]->id}/item", [
+            'product_id' => $extra->id,
+            'quantity' => 2,
+        ])->assertOk()->assertJsonPath('success', true);
+
+        $item = StoreOrderItemModel::where('product_id', $extra->id)->first();
+        $this->assertSame('50.000', (string) $item->weight, '2 袋 × 25斤/袋');
+        $this->assertSame('55.000', (string) $purchase->fresh()->total_weight, '原有参考重量 5.000 + 新增 50.000');
+    }
+
     /** 门店购买详情-修改单品：同商品多笔订单明细合并到最早一条，涉及订单逐一重算 */
     public function test_store_item_update_merges_multi_order_rows(): void
     {