feat: dashboard add platform order trend 7d

tests/Feature/AdminDashboardPlatformOrderTrend7dShouldRenderTest.php

@@ -0,0 +1,90 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Admin;
+use App\Models\Merchant;
+use App\Models\PlatformOrder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Cache;
+use Tests\TestCase;
+
+class AdminDashboardPlatformOrderTrend7dShouldRenderTest 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_dashboard_platform_order_trend_7d_should_render(): void
+    {
+        Cache::flush();
+
+        $this->loginAsPlatformAdmin();
+
+        $merchantId = (int) Merchant::query()->value('id');
+        $platformAdminId = (int) Admin::query()->where('email', 'platform.admin@demo.local')->value('id');
+
+        $d3 = now()->subDays(3)->format('Y-m-d');
+        $d0 = now()->format('Y-m-d');
+
+        $po1 = PlatformOrder::query()->create([
+            'merchant_id' => $merchantId,
+            'plan_id' => null,
+            'site_subscription_id' => null,
+            'created_by_admin_id' => $platformAdminId ?: null,
+            'order_no' => 'PO_TREND_D3',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'paid',
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+        ]);
+
+        $po2 = PlatformOrder::query()->create([
+            'merchant_id' => $merchantId,
+            'plan_id' => null,
+            'site_subscription_id' => null,
+            'created_by_admin_id' => $platformAdminId ?: null,
+            'order_no' => 'PO_TREND_D0',
+            'order_type' => 'new_purchase',
+            'status' => 'pending',
+            'payment_status' => 'unpaid',
+            'payable_amount' => 20,
+            'paid_amount' => 0,
+        ]);
+
+        // 强制把 created_at 调整到目标日期（避免依赖 create() 的当前时间）
+        PlatformOrder::query()->where('id', $po1->id)->update([
+            'created_at' => now()->subDays(3)->startOfDay(),
+            'updated_at' => now()->subDays(3)->startOfDay(),
+        ]);
+
+        PlatformOrder::query()->where('id', $po2->id)->update([
+            'created_at' => now()->startOfDay(),
+            'updated_at' => now()->startOfDay(),
+        ]);
+
+        Cache::flush();
+
+        $res = $this->get('/admin');
+        $res->assertOk();
+
+        $res->assertSee('data-role="platform-order-trend-7d"', false);
+        $res->assertSee('近7天平台订单（按天）');
+
+        // 断言日期行出现（只验证两个代表点）
+        $res->assertSee($d3, false);
+        $res->assertSee($d0, false);
+
+        // 已付金额：PO_TREND_D3 10 元应进入 paid_sum
+        $res->assertSee('¥10.00');
+    }
+}