Added tests

tests/web/upload.php

@@ -0,0 +1,11 @@
+<?php
+Q::header('Content-Type: application/json');
+$result = ['post' => $_POST, 'files' => []];
+foreach ($_FILES as $k => $f) {
+    $result['files'][$k] = [
+        'name' => $f['name'], 'size' => $f['size'],
+        'type' => $f['type'], 'error' => $f['error'],
+        'content' => file_get_contents($f['tmp_name']),
+    ];
+}
+echo json_encode($result);