diff -r 07239de796bb -r e756a8c72c3d cms/drupal/modules/simpletest/src/Tests/PSR4WebTest.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cms/drupal/modules/simpletest/src/Tests/PSR4WebTest.php	Fri Sep 08 12:04:06 2017 +0200
@@ -0,0 +1,18 @@
+<?php
+
+namespace Drupal\simpletest\Tests;
+
+class PSR4WebTest extends \DrupalWebTestCase {
+
+  public static function getInfo() {
+    return array(
+      'name' => 'PSR4 web test',
+      'description' => 'We want to assert that this PSR-4 test case is being discovered.',
+      'group' => 'SimpleTest',
+    );
+  }
+
+  function testArithmetics() {
+    $this->assert(1 + 1 == 2, '1 + 1 == 2');
+  }
+}