mariadb/mysql-test/t/kill.test

connect (con1, localhost, root,,);
connect (con2, localhost, root,,);

#remember id of con1
connection con1;
drop table if exists t1;
create table t1 (kill_id int);
insert into t1 values(connection_id());

#kill con1
connection con2;
select ((@id := kill_id) - kill_id) from t1; 
kill @id;

# Wait for thread to do.
--sleep 5
# verify that con1 is doning a reconnect
connection con1;
ping
ping
select @id != connection_id();

#make sure the server is still alive
connection con2;
select 4;
drop table t1;