#
# Basic test for innodb_buffer_pool_dump_now
#

-- source include/have_innodb.inc

# Check the default value
SELECT @@global.innodb_buffer_pool_dump_now;

-- let $file = `SELECT CONCAT(@@datadir, @@global.innodb_buffer_pool_filename)`
-- error 0,1
-- remove_file $file

--disable_cursor_protocol
SELECT variable_value INTO @old_dump_status FROM information_schema.global_status
    WHERE LOWER(variable_name) = 'innodb_buffer_pool_dump_status';
--enable_cursor_protocol

# A previous test could have run buffer pool dump already;
# in this case we want to make sure that the current time is different
# from the timestamp in the status variable.
# We should have had a smart wait condition here, like the commented one below,
# let $wait_condition =
#  SELECT TRIM(SUBSTR('$old_status', -8)) != DATE_FORMAT(CURTIME(), '%k:%i:%s');
# -- source include/wait_condition.inc

# ... but we can't because of MDEV-9867, so there will be just sleep instead.
# And it might be not enough to sleep one second, so we'll have to sleep two.

if (`SELECT variable_value LIKE '%completed at%' FROM information_schema.global_status
     WHERE LOWER(variable_name) = 'innodb_buffer_pool_dump_status'`)
{
  -- sleep 2
}

# Do the dump
SET GLOBAL innodb_buffer_pool_dump_now = ON;
# Should always be OFF
SELECT @@global.innodb_buffer_pool_dump_now;

# Wait for the dump to complete
let $wait_condition =
  SELECT variable_value != @old_dump_status
     AND SUBSTR(variable_value, 1, 33) = 'Buffer pool(s) dump completed at '
  FROM information_schema.global_status
  WHERE LOWER(variable_name) = 'innodb_buffer_pool_dump_status';
-- source include/wait_condition.inc

# Confirm that the dump file has been created
-- file_exists $file