diff --git a/test/libraries/rte/PMA_RTN_getDataFromRequest_test.php b/test/libraries/rte/PMA_RTN_getDataFromRequest_test.php
index c7b5b95c5c..e7ae440174 100644
--- a/test/libraries/rte/PMA_RTN_getDataFromRequest_test.php
+++ b/test/libraries/rte/PMA_RTN_getDataFromRequest_test.php
@@ -22,7 +22,7 @@ class PMA_RTN_getDataFromRequest_test extends PHPUnit_Framework_TestCase
 
         $cfg['ShowFunctionFields'] = false;
 
-        if (! function_exists('PMA_supportedDataTypesDescriptions')) {
+        if (function_exists('PMA_supportedDataTypesDescriptions')) {
             $this->markTestSkipped(
               'Skipping test since we need to reload data_mysql.inc.php, but cannot do it at this point'
             );
diff --git a/test/libraries/rte/PMA_RTN_getEditorForm_test.php b/test/libraries/rte/PMA_RTN_getEditorForm_test.php
index b0674f479b..720813a197 100644
--- a/test/libraries/rte/PMA_RTN_getEditorForm_test.php
+++ b/test/libraries/rte/PMA_RTN_getEditorForm_test.php
@@ -20,7 +20,15 @@ class PMA_RTN_getEditorForm_test extends PHPUnit_Framework_TestCase
         global $cfg;
 
         $cfg['ShowFunctionFields'] = false;
-        include 'libraries/data_mysql.inc.php';
+
+        if (function_exists('PMA_supportedDataTypesDescriptions')) {
+            $this->markTestSkipped(
+              'Skipping test since we need to reload data_mysql.inc.php, but cannot do it at this point'
+            );
+            return;
+        } else {
+            include 'libraries/data_mysql.inc.php';
+        }
 
         if (! function_exists('PMA_generateCharsetDropdownBox')) {
             function PMA_generateCharsetDropdownBox() {}
diff --git a/test/libraries/rte/PMA_RTN_getExecuteForm_test.php b/test/libraries/rte/PMA_RTN_getExecuteForm_test.php
index aeea93fa5a..0b1ce5c201 100644
--- a/test/libraries/rte/PMA_RTN_getExecuteForm_test.php
+++ b/test/libraries/rte/PMA_RTN_getExecuteForm_test.php
@@ -20,6 +20,15 @@ class PMA_RTN_getExecuteForm_test extends PHPUnit_Framework_TestCase
     {
         global $cfg;
 
+        if (function_exists('PMA_supportedDataTypesDescriptions')) {
+            $this->markTestSkipped(
+              'Skipping test since we need to reload data_mysql.inc.php, but cannot do it at this point'
+            );
+            return;
+        } else {
+            include 'libraries/data_mysql.inc.php';
+        }
+
         if (! defined('PMA_MYSQL_INT_VERSION')) {
             define('PMA_MYSQL_INT_VERSION', 51000);
         }
@@ -54,7 +63,6 @@ class PMA_RTN_getExecuteForm_test extends PHPUnit_Framework_TestCase
             $cfg['DefaultFunctions']['FUNC_SPATIAL'] = 'GeomFromText';
             $GLOBALS['tear_down']['default'] = true;
         }
-        include 'libraries/data_mysql.inc.php';
     }
 
     public function tearDown()
diff --git a/test/libraries/rte/PMA_RTN_getQueryFromRequest_test.php b/test/libraries/rte/PMA_RTN_getQueryFromRequest_test.php
index 2d2717eb5d..56e548cb4b 100644
--- a/test/libraries/rte/PMA_RTN_getQueryFromRequest_test.php
+++ b/test/libraries/rte/PMA_RTN_getQueryFromRequest_test.php
@@ -29,7 +29,14 @@ class PMA_RTN_getQueryFromRequest_test extends PHPUnit_Framework_TestCase
 
         $cfg['ShowFunctionFields'] = false;
 
-        include 'libraries/data_mysql.inc.php';
+        if (function_exists('PMA_supportedDataTypesDescriptions')) {
+            $this->markTestSkipped(
+              'Skipping test since we need to reload data_mysql.inc.php, but cannot do it at this point'
+            );
+            return;
+        } else {
+            include 'libraries/data_mysql.inc.php';
+        }
 
         $errors = array();
         PMA_RTN_setGlobals();