If not being used in Laravel (such as during testing) use system dire…

…ctory for cache

src/Factories/PasswordExposedCheckerFactory.php

@@ -33,6 +33,10 @@ public function instance()
      */
     private function getCacheDirectory()
     {
-        return storage_path('password-exposed-cache/');
+        if (function_exists('storage_path')) {
+            return storage_path('password-exposed-cache/');
+        }
+
+        return sys_get_temp_dir().'/password-exposed-cache/';
     }
 }