test: fix random-order failures in HotReloader and Autoloader

Signed-off-by: memleakd <121398829+memleakd@users.noreply.github.com>

Author: memleakd

system/Cache/FactoriesCache/FileVarExportHandler.php

@@ -21,9 +21,15 @@ public function save(string $key, mixed $val): void
     {
         $val = var_export($val, true);
 
+        if (! is_dir($this->path)) {
+            mkdir($this->path, 0777, true);
+        }
+
         // Write to temp file first to ensure atomicity
         $tmp = $this->path . "/{$key}." . uniqid('', true) . '.tmp';
-        file_put_contents($tmp, '<?php return ' . $val . ';', LOCK_EX);
+        if (file_put_contents($tmp, '<?php return ' . $val . ';', LOCK_EX) === false) {
+            return;
+        }
 
         rename($tmp, $this->path . "/{$key}");
     }

system/HotReloader/DirectoryHasher.php

@@ -73,10 +73,12 @@ public function hashDirectory(string $path): string
 
         foreach ($iterator as $file) {
             if ($file->isFile()) {
-                $hashes[] = md5_file($file->getRealPath());
+                $hashes[$file->getRealPath()] = md5_file($file->getRealPath());
             }
         }
 
+        ksort($hashes);
+
         return md5(implode('', $hashes));
     }
 }