###############################################################################
#
# When changing to single primary mode with no appointed primary,
# if a solo member exists with running slave channels, that
# member shall be the elected primary.
#
# Test:
#   0. This test needs three servers
#   1. server1 start group replication and server2 join
#   2. server1 as slave connection to server3
#   3. Set primary election max weight on server2
#   4. Execute action to single primary mode.
#      It shall succeed, server 1 is the only with slave connections
#   5. Confirm that server2 has super_read_only= 1
#   6. Server1 is the primary server on the group
#      Servers with slave channels take priority over high weight members
#   7. Cleanup
#
###############################################################################

--source include/have_group_replication_plugin.inc
--let $rpl_skip_group_replication_start= 1
--let $rpl_server_count= 3
--source include/group_replication.inc

--echo
--echo # 1. server1 start group replication and server2 join

--source include/start_and_bootstrap_group_replication.inc

--let $rpl_connection_name= server2
--source include/rpl_connection.inc
--source include/start_group_replication.inc

--echo
--echo # 2. server1 as slave connection to server3

--let $rpl_connection_name= server1
--source include/rpl_connection.inc
--replace_result $SERVER_MYPORT_3 SERVER_3_PORT
--eval CHANGE REPLICATION SOURCE TO SOURCE_HOST='localhost', SOURCE_USER='root', SOURCE_PORT=$SERVER_MYPORT_3 for channel 'ch3_1'

--let $rpl_channel_name='ch3_1'
--source include/start_slave.inc
--let $rpl_channel_name=

--echo
--echo # 3. Set primary election max weight on server2

--let $rpl_connection_name= server2
--source include/rpl_connection.inc

SET @@GLOBAL.group_replication_member_weight= 100;

--echo
--echo # 4. Execute action to single primary mode. It shall succeed, server 1
--echo #    is the only with slave connections

SELECT group_replication_switch_to_single_primary_mode();

--echo
--echo # 5. Confirm that server2 has super_read_only= 1

--let $wait_condition= SELECT @@GLOBAL.super_read_only = '1'
--source include/wait_condition.inc

--echo
--echo # 6. Server1 is the primary server on the group
--echo # Servers with slave channels take priority over high weight members

--let $rpl_connection_name= server2
--source include/rpl_connection.inc

--source include/gr_assert_secondary_member.inc

--let $rpl_connection_name= server1
--source include/rpl_connection.inc

--source include/gr_assert_primary_member.inc

--echo
--echo # 7. Cleanup

STOP SLAVE FOR CHANNEL 'ch3_1';
RESET SLAVE ALL FOR CHANNEL 'ch3_1';

--let $rpl_connection_name= server2
--source include/rpl_connection.inc

SET @@GLOBAL.group_replication_member_weight= DEFAULT;

--let $rpl_group_replication_single_primary_mode=1
--let $rpl_group_replication_reset_persistent_vars=1
--source include/group_replication_end.inc