diff --git a/test/classes/BrowseForeignersTest.php b/test/classes/BrowseForeignersTest.php
index 81221e7385..6b3130acca 100644
--- a/test/classes/BrowseForeignersTest.php
+++ b/test/classes/BrowseForeignersTest.php
@@ -47,7 +47,7 @@ class BrowseForeignersTest extends TestCase
         $method = $class->getMethod($name);
         $method->setAccessible(true);
         return $method->invokeArgs(
-            $object !== null ? $object : $this->browseForeigners,
+            $object ?? $this->browseForeigners,
             $params
         );
     }
diff --git a/test/classes/CentralColumnsTest.php b/test/classes/CentralColumnsTest.php
index 55bc25c937..de4c1d5326 100644
--- a/test/classes/CentralColumnsTest.php
+++ b/test/classes/CentralColumnsTest.php
@@ -152,7 +152,7 @@ class CentralColumnsTest extends TestCase
         $method = $class->getMethod($name);
         $method->setAccessible(true);
         return $method->invokeArgs(
-            $object !== null ? $object : $this->centralColumns,
+            $object ?? $this->centralColumns,
             $params
         );
     }
diff --git a/test/classes/InsertEditTest.php b/test/classes/InsertEditTest.php
index 3459f5b09c..8183c05058 100644
--- a/test/classes/InsertEditTest.php
+++ b/test/classes/InsertEditTest.php
@@ -85,7 +85,7 @@ class InsertEditTest extends TestCase
         $method = $class->getMethod($name);
         $method->setAccessible(true);
         return $method->invokeArgs(
-            $object !== null ? $object : $this->insertEdit,
+            $object ?? $this->insertEdit,
             $params
         );
     }
diff --git a/test/classes/Plugins/Export/ExportSqlTest.php b/test/classes/Plugins/Export/ExportSqlTest.php
index 64dbe9a6ec..eaa4aa2b09 100644
--- a/test/classes/Plugins/Export/ExportSqlTest.php
+++ b/test/classes/Plugins/Export/ExportSqlTest.php
@@ -1764,7 +1764,7 @@ class ExportSqlTest extends PmaTestCase
         $GLOBALS['sql_views_as_tables'] = false;
         $GLOBALS['sql_include_comments'] = true;
         $GLOBALS['crlf'] = "\n";
-        $oldVal = isset($GLOBALS['sql_compatibility']) ? $GLOBALS['sql_compatibility'] : '';
+        $oldVal = $GLOBALS['sql_compatibility'] ?? '';
         $GLOBALS['sql_compatibility'] = 'NONE';
         $GLOBALS['sql_backquotes'] = true;
 
diff --git a/test/classes/Rte/RoutinesTest.php b/test/classes/Rte/RoutinesTest.php
index f70932d9c5..1db33ec40e 100644
--- a/test/classes/Rte/RoutinesTest.php
+++ b/test/classes/Rte/RoutinesTest.php
@@ -1116,7 +1116,7 @@ class RoutinesTest extends TestCase
         $errors = [];
         $this->routines->setGlobals();
 
-        $old_dbi = isset($GLOBALS['dbi']) ? $GLOBALS['dbi'] : null;
+        $old_dbi = $GLOBALS['dbi'] ?? null;
         $dbi = $this->getMockBuilder('PhpMyAdmin\DatabaseInterface')
             ->disableOriginalConstructor()
             ->getMock();
diff --git a/test/classes/UtilTest.php b/test/classes/UtilTest.php
index 61ad68b932..6985fea7ac 100644
--- a/test/classes/UtilTest.php
+++ b/test/classes/UtilTest.php
@@ -2115,7 +2115,7 @@ class UtilTest extends PmaTestCase
      */
     public function testLinkOrButton(array $params, $limit, $match)
     {
-        $restore = isset($GLOBALS['cfg']['LinkLengthLimit']) ? $GLOBALS['cfg']['LinkLengthLimit'] : 1000;
+        $restore = $GLOBALS['cfg']['LinkLengthLimit'] ?? 1000;
         $GLOBALS['cfg']['LinkLengthLimit'] = $limit;
         try {
             $result = call_user_func_array(
diff --git a/test/classes/Utils/HttpRequestTest.php b/test/classes/Utils/HttpRequestTest.php
index e114a2be4e..9cc7e75db6 100644
--- a/test/classes/Utils/HttpRequestTest.php
+++ b/test/classes/Utils/HttpRequestTest.php
@@ -47,7 +47,7 @@ class HttpRequestTest extends PmaTestCase
         $method = $class->getMethod($name);
         $method->setAccessible(true);
         return $method->invokeArgs(
-            $object !== null ? $object : $this->httpRequest,
+            $object ?? $this->httpRequest,
             $params
         );
     }