Missing decrement of reference pointer (connection) when closing the cursor

import resource, mariadb

    ...

    def test_connection_ref(self):

        if is_maxscale():

            self.skipTest("skip test (possible timeout)")

        last= 0

        for i in range(1,100000):

            conn= create_connection()

            cursor= conn.cursor()

            cursor.close()

            conn.close()

            usage = resource.getrusage(resource.RUSAGE_SELF)

            new= usage[2]

            if (last > 0):

                self.assertEqual(new, last)

            last= new