diff --git a/core/modules/simpletest/src/Form/SimpletestResultsForm.php b/core/modules/simpletest/src/Form/SimpletestResultsForm.php
index 054b405..9ddc451 100644
--- a/core/modules/simpletest/src/Form/SimpletestResultsForm.php
+++ b/core/modules/simpletest/src/Form/SimpletestResultsForm.php
@@ -12,7 +12,6 @@
 use Drupal\Core\Form\FormBase;
 use Drupal\Core\Form\FormState;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Core\StringTranslation\TranslationInterface;
 use Drupal\Core\Url;
 use Drupal\simpletest\TestDiscovery;
 use Symfony\Component\DependencyInjection\ContainerInterface;
@@ -20,6 +19,12 @@
 
 /**
  * Test results form for $test_id.
+ *
+ * Note that the UI strings are not translated because this form is also used
+ * from run-tests.sh.
+ *
+ * @see simpletest_script_open_browser()
+ * @see run-tests.sh
  */
 class SimpletestResultsForm extends FormBase {
 
@@ -59,35 +64,34 @@ public function __construct(Connection $database) {
   /**
    * Builds the status image map.
    */
-  protected static function buildStatusImageMap(TranslationInterface $translation) {
-    // Initialize image mapping property.
+  protected static function buildStatusImageMap() {
     $image_pass = array(
       '#theme' => 'image',
       '#uri' => 'core/misc/icons/73b355/check.svg',
       '#width' => 18,
       '#height' => 18,
-      '#alt' => $translation->translate('Pass'),
+      '#alt' => 'Pass',
     );
     $image_fail = array(
       '#theme' => 'image',
       '#uri' => 'core/misc/icons/ea2800/error.svg',
       '#width' => 18,
       '#height' => 18,
-      '#alt' => $translation->translate('Fail'),
+      '#alt' => 'Fail',
     );
     $image_exception = array(
       '#theme' => 'image',
       '#uri' => 'core/misc/icons/e29700/warning.svg',
       '#width' => 18,
       '#height' => 18,
-      '#alt' => $translation->translate('Exception'),
+      '#alt' => 'Exception',
     );
     $image_debug = array(
       '#theme' => 'image',
       '#uri' => 'core/misc/icons/e29700/warning.svg',
       '#width' => 18,
       '#height' => 18,
-      '#alt' => $translation->translate('Debug'),
+      '#alt' => 'Debug',
     );
     return array(
       'pass' => drupal_render($image_pass),
@@ -232,20 +236,22 @@ protected function getResults($test_id) {
    * Adds the result form to a $form.
    *
    * This is a static method so that run-tests.sh can use it to generate a
-   * results page completely external to Drupal.
+   * results page completely external to Drupal. This is why the UI strings are
+   * not wrapped in t().
    *
    * @param array $form
    *   The form to attach the results to.
    * @param array $test_results
    *   The simpletest results.
-   * @param \Drupal\Core\StringTranslation\TranslationInterface $translation
-   *   The string translation service.
    *
    * @return array
    *   A list of tests the passed and failed. The array has two keys, 'pass' and
    *   'fail'. Each contains a list of test classes.
+   *
+   * @see simpletest_script_open_browser()
+   * @see run-tests.sh
    */
-  public static function addResultForm(array &$form, array $results, TranslationInterface $translation) {
+  public static function addResultForm(array &$form, array $results) {
     // Transform the test results to be grouped by test class.
     $test_results = array();
     foreach ($results as $result) {
@@ -255,7 +261,7 @@ public static function addResultForm(array &$form, array $results, TranslationIn
       $test_results[$result->test_class][] = $result;
     }
 
-    $image_status_map = static::buildStatusImageMap($translation);
+    $image_status_map = static::buildStatusImageMap();
 
     // Keep track of which test cases passed or failed.
     $filter = array(
@@ -266,7 +272,7 @@ public static function addResultForm(array &$form, array $results, TranslationIn
     // Summary result widget.
     $form['result'] = array(
       '#type' => 'fieldset',
-      '#title' => $translation->translate('Results'),
+      '#title' => 'Results',
       // Because this is used in a theme-less situation need to provide a
       // default.
       '#attributes' => array(),
@@ -283,12 +289,12 @@ public static function addResultForm(array &$form, array $results, TranslationIn
 
     // Cycle through each test group.
     $header = array(
-      $translation->translate('Message'),
-      $translation->translate('Group'),
-      $translation->translate('Filename'),
-      $translation->translate('Line'),
-      $translation->translate('Function'),
-      array('colspan' => 2, 'data' => $translation->translate('Status'))
+      'Message',
+      'Group',
+      'Filename',
+      'Line',
+      'Function',
+      array('colspan' => 2, 'data' => 'Status')
     );
     $form['result']['results'] = array();
     foreach ($test_results as $group => $assertions) {
diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
index eb0fa55..f5c5b74 100644
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -1197,17 +1197,21 @@ function simpletest_script_open_browser() {
     ->fetchAll();
   // Generate html results.
   $form = array();
-  SimpletestResultsForm::addResultForm($form, $results, \Drupal::service('string_translation'));
+  SimpletestResultsForm::addResultForm($form, $results);
   $html = '<head>
 <link type="text/css" rel="stylesheet" href="'. file_create_url(drupal_get_path('module', 'system') . '/css/system.module.css') . '" media="all">
 <link type="text/css" rel="stylesheet" href="'. file_create_url(drupal_get_path('module', 'system') . '/css/system.theme.css') . '" media="all">
 <link type="text/css" rel="stylesheet" href="'. file_create_url(drupal_get_path('module', 'simpletest') . '/css/simpletest.module.css') . '" media="all">
 </head><body>' . drupal_render($form) .'</body>';
-  $uuid = new Php();
+
+  // Ensure we have a verbose directory - tests with no verbose output will not
+  // have created one.
   $directory = PublicStream::basePath() . '/simpletest/verbose';
   file_prepare_directory($directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
+  $uuid = new Php();
   $filename = $directory .'/results-'. $uuid->generate() .'.html';
   file_put_contents($filename, $html);
+
   // See if we can find an OS helper to open URLs in default browser.
   if (shell_exec('which xdg-open')) {
     $browser = 'xdg-open';