Bug #16813007 - MTR IS NOT TAKING MYSQLTEST CLIENT USING THE ENV VARIABLE MYSQL_TEST

mysql-test/mysql-test-run.pl

@@ -1785,7 +1785,17 @@ sub executable_setup () {
   }
   else
   {
-    $exe_mysqltest= mtr_exe_exists("$path_client_bindir/mysqltest");
+    if ( defined $ENV{'MYSQL_TEST'} )
+    {
+      $exe_mysqltest=$ENV{'MYSQL_TEST'};
+      print "===========================================================\n";
+      print "WARNING:The mysqltest binary is fetched from $exe_mysqltest\n";
+      print "===========================================================\n";
+    }
+    else
+    {
+      $exe_mysqltest= mtr_exe_exists("$path_client_bindir/mysqltest");
+    }
   }
 
 }