diff --git a/package/Aura.Framework/tests/Aura/Framework/Mock/System.php b/package/Aura.Framework/tests/Aura/Framework/Mock/System.php
new file mode 100644
index 0000000..cce3a2d
--- /dev/null
+++ b/package/Aura.Framework/tests/Aura/Framework/Mock/System.php
@@ -0,0 +1,48 @@
+<?php
+namespace Aura\Framework\Mock;
+use Aura\Framework\System as RealSystem;
+class System extends RealSystem
+{
+    static public function newInstance()
+    {
+        $root = dirname(dirname(dirname(__DIR__))) . DIRECTORY_SEPARATOR . 'tmp';
+        $system = new self($root);
+        return $system;
+    }
+    
+    public function create()
+    {
+        $dir = $this->getRootPath();
+        
+        if (is_dir($dir)) {
+            $this->remove();
+        }
+        
+        if (! is_dir($dir)) {
+            mkdir($dir);
+        }
+        
+        mkdir($this->getConfigPath());
+        mkdir($this->getIncludePath());
+        mkdir($this->getPackagePath());
+        mkdir($this->getTmpPath());
+        mkdir($this->getWebPath());
+    }
+    
+    public function remove()
+    {
+        $dir = $this->getRootPath();
+        $iterator = new \RecursiveIteratorIterator(
+            new \RecursiveDirectoryIterator($dir),
+            \RecursiveIteratorIterator::CHILD_FIRST
+        );
+        foreach ($iterator as $path) {
+            if ($path->isDir()) {
+                rmdir($path->__toString());
+            } else {
+                unlink($path->__toString());
+            }
+        }
+        rmdir($dir);
+    }
+}