feat(admin): 续费缺订阅时 BMPA 提示补齐去订阅管理查找订阅入口

tests/Feature/AdminPlatformOrderShowBmpaGovernanceBlockShouldIncludeFindSubscriptionLinkWhenRenewalMissingSubscriptionTest.php

@@ -0,0 +1,76 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderShowBmpaGovernanceBlockShouldIncludeFindSubscriptionLinkWhenRenewalMissingSubscriptionTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_show_bmpa_governance_block_should_include_find_subscription_link_when_renewal_missing_subscription(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+        $plan = Plan::query()->create([
+            'code' => 'po_show_bmpa_find_sub_renewal_no_sub_plan',
+            'name' => '订单详情 BMPA 治理引导（续费无订阅）测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 30,
+            'list_price' => 30,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        $order = PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_SHOW_BMPA_FIND_SUB_RENEW_NO_SUB_0001',
+            'order_type' => 'renewal',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 30,
+            'paid_amount' => 0,
+            'placed_at' => now(),
+            'meta' => [],
+        ]);
+
+        $res = $this->get('/admin/platform-orders/' . $order->id);
+        $res->assertOk();
+
+        $res->assertSee('BMPA 治理提示', false);
+        $res->assertSee('去订阅管理查找订阅', false);
+
+        // 链接应包含 merchant_id/plan_id，并携带 back 回到当前订单详情
+        $matched = preg_match('/<a[^>]+href="([^"]+)"[^>]*>\s*去订阅管理查找订阅\s*<\/a>/u', (string) $res->getContent(), $m);
+        $this->assertSame(1, $matched, '未找到 BMPA 治理提示中的「去订阅管理查找订阅」链接');
+
+        $url = $m[1] ?? '';
+        $parts = parse_url($url);
+        parse_str($parts['query'] ?? '', $q);
+
+        $this->assertSame((string) $merchant->id, (string) ($q['merchant_id'] ?? ''));
+        $this->assertSame((string) $plan->id, (string) ($q['plan_id'] ?? ''));
+        $this->assertSame('/admin/platform-orders/' . $order->id, (string) ($q['back'] ?? ''));
+    }
+}