test(billing): lock SOP to require receipt audits

tests/Feature/AdminBillingClosedLoopNewPurchaseSopShouldWriteReceiptAuditsTest.php

@@ -0,0 +1,95 @@
+<?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 AdminBillingClosedLoopNewPurchaseSopShouldWriteReceiptAuditsTest 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_sop_new_purchase_should_write_audit_entries_for_receipts(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+
+        $plan = Plan::query()->create([
+            'code' => 'sop_new_purchase_audit_receipts_monthly',
+            'name' => 'SOP新购（回执审计）月付',
+            'billing_cycle' => 'monthly',
+            'price' => 30,
+            'list_price' => 30,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        // 1) 创建平台订单（新购）
+        $this->post('/admin/platform-orders', [
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_type' => 'new_purchase',
+            'quantity' => 1,
+            'discount_amount' => 0,
+            'payment_channel' => 'bank_transfer',
+            'remark' => 'SOP 新购（回执审计）',
+        ])->assertRedirect();
+
+        /** @var PlatformOrder $order */
+        $order = PlatformOrder::query()->latest('id')->firstOrFail();
+
+        // 2) 追加支付回执
+        $this->post('/admin/platform-orders/' . $order->id . '/add-payment-receipt', [
+            'type' => 'bank_transfer',
+            'channel' => 'icbc',
+            'amount' => 30,
+            'paid_at' => now()->format('Y-m-d H:i:s'),
+            'note' => '线下转账，财务已确认',
+        ])->assertRedirect();
+
+        $order->refresh();
+        $audit = (array) (data_get($order->meta, 'audit', []) ?? []);
+        $this->assertNotEmpty($audit);
+        $last = end($audit);
+        $this->assertSame('add_payment_receipt', (string) data_get($last, 'action'));
+        $this->assertSame(30.0, (float) data_get($last, 'snapshot.amount'));
+
+        // 3) BMPA
+        $this->post('/admin/platform-orders/' . $order->id . '/mark-paid-and-activate')
+            ->assertRedirect();
+
+        $order->refresh();
+        $this->assertSame('paid', (string) $order->payment_status);
+
+        // 4) 追加退款回执（部分退款）
+        $this->post('/admin/platform-orders/' . $order->id . '/add-refund-receipt', [
+            'type' => 'refund',
+            'channel' => 'icbc',
+            'amount' => 10,
+            'refunded_at' => now()->format('Y-m-d H:i:s'),
+            'note' => '部分退款（测试）',
+        ])->assertRedirect();
+
+        $order->refresh();
+        $audit = (array) (data_get($order->meta, 'audit', []) ?? []);
+        $this->assertNotEmpty($audit);
+        $last = end($audit);
+        $this->assertSame('add_refund_receipt', (string) data_get($last, 'action'));
+        $this->assertSame(10.0, (float) data_get($last, 'snapshot.amount'));
+    }
+}