补强回执筛选说明链接回跳护栏

tests/Feature/AdminPlatformOrderFiltersReceiptStatusHintLinkShouldKeepBackTest.php

@@ -0,0 +1,43 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Arr;
+use Tests\TestCase;
+
+class AdminPlatformOrderFiltersReceiptStatusHintLinkShouldKeepBackTest 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_receipt_status_hint_link_should_keep_back_query(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $res = $this->get('/admin/platform-orders?' . Arr::query([
+            'merchant_id' => 2,
+            'plan_id' => 3,
+            'keyword' => 'alpha',
+            'back' => '/admin/plans',
+        ]));
+        $res->assertOk();
+
+        $html = (string) $res->getContent();
+        preg_match('/data-role="po-receipt-status-broad-none-go-paid-no-receipt"[^>]*href="([^"]+)"/u', $html, $m);
+        $href = html_entity_decode($m[1] ?? '');
+        $query = parse_url($href, PHP_URL_QUERY) ?: '';
+        parse_str($query, $q);
+
+        $this->assertSame('/admin/plans', (string) ($q['back'] ?? ''));
+    }
+}