diff --git a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
index 0b4aff1..80aff57 100644
--- a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
+++ b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
@@ -2888,8 +2888,8 @@ protected function assertNoTitle($title, $message = '', $group = 'Other') {
    *   TRUE on pass, FALSE on fail.
    */
   protected function assertThemeOutput($callback, array $variables = array(), $expected, $message = '', $group = 'Other') {
-    $theme_output = array('#theme' => $callback, $variables;
-    $output = drupal_render($$theme_output);
+    $theme_output = array('#theme' => $callback, $variables);
+    $output = drupal_render($theme_output);
     $this->verbose('Variables:' . '<pre>' .  check_plain(var_export($variables, TRUE)) . '</pre>'
       . '<hr />' . 'Result:' . '<pre>' .  check_plain(var_export($output, TRUE)) . '</pre>'
       . '<hr />' . 'Expected:' . '<pre>' .  check_plain(var_export($expected, TRUE)) . '</pre>'
diff --git a/core/modules/system/lib/Drupal/system/Tests/Theme/TableTest.php b/core/modules/system/lib/Drupal/system/Tests/Theme/TableTest.php
index 52011a4..7ba14ae 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Theme/TableTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Theme/TableTest.php
@@ -28,7 +28,7 @@ function testThemeTableStickyHeaders() {
     $header = array('one', 'two', 'three');
     $rows = array(array(1,2,3), array(4,5,6), array(7,8,9));
     $table = array('#theme' => 'table', '#header' => $header, '#rows' => $rows, '#sticky' => TRUE);
-    $this->content = drupal_render($$table);
+    $this->content = drupal_render($table);
     $js = _drupal_add_js();
     $this->assertTrue(isset($js['core/misc/tableheader.js']), 'tableheader.js was included when $sticky = TRUE.');
     $this->assertRaw('sticky-enabled',  'Table has a class of sticky-enabled when $sticky = TRUE.');
@@ -45,7 +45,7 @@ function testThemeTableNoStickyHeaders() {
     $caption = NULL;
     $colgroups = array();
     $table =array('#theme' => 'table', '#header' => $header, '#rows' => $rows, '#attributes' => $attributes, '#caption' => $caption, '#colgroups' => $colgroups, '#sticky' => FALSE);
-    $this->content = drupal_render($$table);
+    $this->content = drupal_render($table);
     $js = _drupal_add_js();
     $this->assertFalse(isset($js['core/misc/tableheader.js']), 'tableheader.js was not included because $sticky = FALSE.');
     $this->assertNoRaw('sticky-enabled',  'Table does not have a class of sticky-enabled because $sticky = FALSE.');
diff --git a/core/modules/system/lib/Drupal/system/Tests/Theme/TwigDebugMarkupTest.php b/core/modules/system/lib/Drupal/system/Tests/Theme/TwigDebugMarkupTest.php
index 5f9e5e6..43934ea 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Theme/TwigDebugMarkupTest.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Theme/TwigDebugMarkupTest.php
@@ -34,7 +34,7 @@ public static function getInfo() {
    */
   function testTwigDebugMarkup() {
     $extension = twig_extension();
-    \Drupal::service('theme_handler')->enable((array('test_theme'));
+    \Drupal::service('theme_handler')->enable(array('test_theme'));
     \Drupal::config('system.theme')->set('default', 'test_theme')->save();
     // Enable debug, rebuild the service container, and clear all caches.
     $this->settingsSet('twig_debug', TRUE);
@@ -48,7 +48,7 @@ function testTwigDebugMarkup() {
 
     // Create a node and test different features of the debug markup.
     $node = $this->drupalCreateNode();
-    $node_output = array('#theme' => 'node', 'node' => node_view($node);
+    $node_output = array('#theme' => 'node', 'node' => node_view($node));
     $output = drupal_render($node_output);
     $this->assertTrue(strpos($output, '<!-- THEME DEBUG -->') !== FALSE, 'Twig debug markup found in theme output when debug is enabled.');
     $this->assertTrue(strpos($output, "CALL: drupal_render($node_output)") !== FALSE, 'Theme call information found.');
@@ -60,7 +60,7 @@ function testTwigDebugMarkup() {
     // Create another node and make sure the template suggestions shown in the
     // debug markup are correct.
     $node2 = $this->drupalCreateNode();
-    $node2_output = array('#theme' => 'node', 'node' => node_view($node2);
+    $node2_output = array('#theme' => 'node', 'node' => node_view($node2));
     $output = drupal_render($node2_output);
     $this->assertTrue(strpos($output, '* node--2' . $extension) !== FALSE, 'Node ID specific template suggestion found.');
     $this->assertTrue(strpos($output, 'x node' . $extension) !== FALSE, 'Base template file shown as current template.');
@@ -70,7 +70,7 @@ function testTwigDebugMarkup() {
     $this->rebuildContainer();
     $this->resetAll();
 
-    $node_output2 = array('#theme' => 'node', 'node' => node_view($node);
+    $node_output2 = array('#theme' => 'node', 'node' => node_view($node));
     $output = drupal_render($node_output2);
     $this->assertFalse(strpos($output, '<!-- THEME DEBUG -->') !== FALSE, 'Twig debug markup not found in theme output when debug is disabled.');
   }