first version

kirby/config/tests.php

@@ -0,0 +1,15 @@
+<?php
+
+$testDir = dirname(__DIR__) . '/tests';
+
+if (is_dir($testDir) === true) {
+    spl_autoload_register(function ($className) use ($testDir) {
+        $path = str_replace('Kirby\\', '', $className);
+        $path = str_replace('\\', '/', $path);
+        $file = $testDir . '/' . $path . '.php';
+
+        if (file_exists($file)) {
+            include $file;
+        }
+    });
+}