diff --git a/core/modules/simpletest/simpletest.module b/core/modules/simpletest/simpletest.module
index 8cf5623..b459879 100644
--- a/core/modules/simpletest/simpletest.module
+++ b/core/modules/simpletest/simpletest.module
@@ -759,7 +759,7 @@ function simpletest_phpunit_xml_to_rows($test_id, $phpunit_xml_file) {
       // The file element won't be on testcase objects created with
       // @dataProvider, so just use the one from the test suite at this level
       // because it should be the same.
-      $file = (string)$suite->attributes()->file;
+      $file = (string) $suite->attributes()->file;
 
       $testcases = simpletest_phpunit_find_testcases($suite);
       foreach ($testcases as $testcase) {
@@ -826,10 +826,11 @@ function simpletest_phpunit_testcase_to_row($test_id, \SimpleXMLElement $testcas
 
   $record = array(
     'test_id' => $test_id,
-    'test_class' => (string)$attributes->class,
+    'test_class' => (string) $attributes->class,
     'status' => $pass ? 'pass' : 'fail',
     'message' => $message,
-    'message_group' => 'Other', // TODO: Check on the proper values for this.
+    // @todo: Check on the proper values for this.
+    'message_group' => 'Other',
     'function' => $attributes->class . '->' . $attributes->name . '()',
     'line' => $attributes->line ?: 0,
     'file' => $file,