Reorder memory leak test

Author: ishakhsuvarov

dev/tests/integration/framework/Magento/TestFramework/Helper/Memory.php

@@ -47,12 +47,12 @@ public function getRealMemoryUsage()
     {
         $pid = getmypid();
         try {
+            // fall back to the Unix command line
+            $result = $this->_getUnixProcessMemoryUsage($pid);
+        } catch (\Magento\Framework\Exception\LocalizedException $e) {
             // try to use the Windows command line
             // some ports of Unix commands on Windows, such as MinGW, have limited capabilities and cannot be used
             $result = $this->_getWinProcessMemoryUsage($pid);
-        } catch (\Magento\Framework\Exception\LocalizedException $e) {
-            // fall back to the Unix command line
-            $result = $this->_getUnixProcessMemoryUsage($pid);
         }
         return $result;
     }