[Fix][CachedRouting] Persist route cache in local file store

src/Illuminate/CachedRouting/Router.php

@@ -82,7 +82,7 @@ public function cache($filename, Closure $callback, $cacheMinutes = 1440)
             return null;
         }
 
-        $cacher = $this->container['cache'];
+        $cacher = $this->getRouteCacher();
         $cacheKey = $this->getCacheKey($filename);
 
         // Check if the current route group is cached.
@@ -113,9 +113,20 @@ public function cache($filename, Closure $callback, $cacheMinutes = 1440)
      */
     public function clearCache($filename)
     {
-        $cacher = $this->container['cache'];
+        $this->getRouteCacher()->forget($this->getCacheKey($filename));
+    }
 
-        $cacher->forget($this->getCacheKey($filename));
+    /**
+     * Get the cache store used to persist compiled routes.
+     *
+     * Always the local "file" store so that booting the application (web or
+     * artisan) never depends on a networked cache such as Redis.
+     *
+     * @return \Illuminate\Cache\Repository
+     */
+    protected function getRouteCacher()
+    {
+        return $this->container['cache']->driver('file');
     }
 
     /**

tests/CachedRouting/RoutingIntegrationTest.php

@@ -37,6 +37,7 @@
 use Illuminate\Cache\CacheManager;
 use Illuminate\CachedRouting\Router;
 use Illuminate\Config\Repository;
+use Illuminate\Filesystem\Filesystem;
 use Illuminate\Foundation\Application;
 use Illuminate\Session\SessionManager;
 use Illuminate\Support\Facades\Facade;
@@ -51,6 +52,8 @@ class RoutingIntegrationTest extends TestCase
      */
     protected ?Application $app = null;
 
+    protected static ?string $cachePath = null;
+
     /**
      * Setup the test environment.
      */
@@ -61,6 +64,13 @@ protected function setUp(): void
         }
     }
 
+    protected function tearDown(): void
+    {
+        if (self::$cachePath !== null) {
+            (new Filesystem)->deleteDirectory(self::$cachePath);
+        }
+    }
+
     /**
      * Refresh the application instance.
      */
@@ -83,8 +93,10 @@ protected function refreshApplication(): void
 
         $this->app['config'] = new Repository($loader, $this->app['env']);
 
+        $this->app['files'] = new Filesystem;
         $this->app['cache'] = new CacheManager($this->app);
-        $this->app['config']['cache.driver'] = 'array';
+        $this->app['config']['cache.driver'] = 'file';
+        $this->app['config']['cache.path'] = self::$cachePath = sys_get_temp_dir() . '/l42x-route-cache-' . uniqid();
 
         $this->app['session'] = new SessionManager($this->app);
         $this->app['config']['session.driver'] = 'array';
@@ -150,7 +162,6 @@ public function testCacheRoutesNoTtl(): void
         }, 0);
 
         static::assertNull($key, 'Cache key should be null with TTL=0');
-        static::assertFalse($this->app->cache->has($key), 'Key should not be stored in cache');
         static::assertEquals(1, $router->getRoutes()->count(), 'Route must be added to router');
     }