diff --git a/core/modules/simpletest/src/TestDiscovery.php b/core/modules/simpletest/src/TestDiscovery.php
index bbee5e3694..bbddd639f0 100644
--- a/core/modules/simpletest/src/TestDiscovery.php
+++ b/core/modules/simpletest/src/TestDiscovery.php
@@ -347,7 +347,7 @@ public static function getTestInfo($classname, $doc_comment = NULL) {
       foreach ($matches[1] as $key => $annotation) {
         // For historical reasons, there is a single-value 'group' result key
         // and a 'groups' key as an array.
-        if ($annotation == 'group') {
+        if ($annotation === 'group') {
           $annotations['groups'][] = $matches[2][$key];
         }
         if (!empty($annotations[$annotation])) {
diff --git a/core/scripts/run-tests.sh b/core/scripts/run-tests.sh
old mode 100644
new mode 100755
index 4e438057d3..15e8485379
--- a/core/scripts/run-tests.sh
+++ b/core/scripts/run-tests.sh
@@ -88,7 +88,7 @@
   $list = [];
   foreach($groups as $group => $tests) {
     foreach (array_keys($tests) as $class) {
-      if (!in_array($class, $classes)) {
+      if (!in_array($class, $classes, TRUE)) {
         $list[$group][] = $class;
         $classes[] = $class;
       }