test: export lead_id filter should be precise

tests/Feature/AdminPlatformOrderExportTest.php

@@ -211,7 +211,7 @@ class AdminPlatformOrderExportTest extends TestCase
 
         $this->get('/admin/platform-orders/export')
             ->assertRedirect('/admin/login');
-}
+    }
 
     public function test_platform_admin_can_export_platform_orders_csv_with_lead_id_column(): void
     {
@@ -255,6 +255,32 @@ class AdminPlatformOrderExportTest extends TestCase
             ],
         ]);
 
+        $otherLead = \App\Models\PlatformLead::query()->create([
+            'name' => 'Lead Export Other',
+            'mobile' => '13800000888',
+            'company' => 'Other Inc',
+            'status' => 'new',
+        ]);
+
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_EXPORT_LEAD_0002',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 10,
+            'paid_amount' => 0,
+            'placed_at' => now(),
+            'meta' => [
+                'platform_lead_id' => $otherLead->id,
+            ],
+        ]);
+
         $res = $this->get('/admin/platform-orders/export?download=1&lead_id=' . $lead->id);
         $res->assertOk();
 
@@ -262,6 +288,23 @@ class AdminPlatformOrderExportTest extends TestCase
         $this->assertStringContainsString('线索ID', $content);
         $this->assertStringContainsString('PO_EXPORT_LEAD_0001', $content);
         $this->assertStringContainsString((string) $lead->id, $content);
+
+        // lead_id 精确过滤：不应导出其它线索的订单
+        $this->assertStringNotContainsString('PO_EXPORT_LEAD_0002', $content);
+
+        // 更稳健断言：逐行解析 CSV，确保“线索ID”列全部等于目标 lead_id
+        $contentNoBom = ltrim($content, "\xEF\xBB\xBF");
+        $lines = array_values(array_filter(preg_split("/\r\n|\n|\r/", $contentNoBom)));
+        $this->assertGreaterThanOrEqual(2, count($lines));
+
+        $headers = str_getcsv($lines[0]);
+        $leadIdx = array_search('线索ID', $headers, true);
+        $this->assertNotFalse($leadIdx);
+
+        for ($i = 1; $i < count($lines); $i++) {
+            $row = str_getcsv($lines[$i]);
+            $this->assertSame((string) $lead->id, (string) ($row[$leadIdx] ?? ''));
+        }
     }
 
 }