#
# ==== Purpose ====
#
# In this test we check that the variable immediate_server_version can be
# correctly set and accessed.
#
#
# ==== References ====
#
# WL#11879 replicate original server version

--let $default_value = 999999
--let $max_value = 999999

--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT @@GLOBAL.immediate_server_version;

--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be accessible and have the default value
--let $assert_cond = $ISV = $default_value
--source include/assert.inc

# Verify that SHOW VARIABLES works
SHOW VARIABLES LIKE 'immediate_server_version';

# Check if value can set
--error ER_LOCAL_VARIABLE
SET @@GLOBAL.immediate_server_version = 123456;

SET @@SESSION.immediate_server_version = 123456;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be equal to the set value
--let $assert_cond = $ISV = 123456
--source include/assert.inc

# Check errors for wrong values (different type or not in the range of allowed
# values)

# This will generate a warning
SET @@SESSION.immediate_server_version = -123456;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be 0
--let $assert_cond = $ISV = 0
--source include/assert.inc

# Should be accepted
SET @@SESSION.immediate_server_version = 0;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be 0
--let $assert_cond = $ISV = 0
--source include/assert.inc

--error ER_WRONG_TYPE_FOR_VAR
SET @@SESSION.immediate_server_version = 123456789012345678901;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be 0
--let $assert_cond = $ISV = 0
--source include/assert.inc

--error ER_WRONG_TYPE_FOR_VAR
SET @@SESSION.immediate_server_version = 'xyz';
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be 0
--let $assert_cond = $ISV = 0
--source include/assert.inc

--error ER_WRONG_TYPE_FOR_VAR
SET @@SESSION.immediate_server_version = xyz;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be 0
--let $assert_cond = $ISV = 0
--source include/assert.inc

# Should give a warning and truncate the value and set it to the maximum value
SET @@SESSION.immediate_server_version = 36028797018963969;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be equal to the maximum value
--let $assert_cond = $ISV = $max_value
--source include/assert.inc

# Should give a warning and truncate the value and set it to the maximum value
SET @@SESSION.immediate_server_version = 18446744073709551615;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be equal to the maximum value
--let $assert_cond = $ISV = $max_value
--source include/assert.inc

# Should give a error
--error ER_WRONG_TYPE_FOR_VAR
SET @@SESSION.immediate_server_version = 18446744073709551616;
--let $ISV = `SELECT @@SESSION.immediate_server_version;`
--let $assert_text = immediate_server_version must be equal to the maximum value
--let $assert_cond = $ISV = $max_value
--source include/assert.inc


# Check if the value in SESSION Table matches value in variable

--let $count =`SELECT @@SESSION.immediate_server_version = VARIABLE_VALUE FROM performance_schema.session_variables WHERE VARIABLE_NAME='immediate_server_version';`
--let $assert_text = The value in session table matches the one in the variable
--let $assert_cond = $count = 1
--source include/assert.inc

--let $count = `SELECT COUNT(@@SESSION.immediate_server_version);`
--let $assert_text = There is only one variable with this name
--let $assert_cond = $count = 1
--source include/assert.inc

--let $count = `SELECT COUNT(VARIABLE_VALUE) FROM performance_schema.session_variables WHERE VARIABLE_NAME='immediate_server_version';`
--let $assert_text = There is only one variable with this name in the performance schema table
--let $assert_cond = $count = 1
--source include/assert.inc

#   Check if immediate_server_version can be accessed with @@ sign

--let $count = `SELECT COUNT(@@immediate_server_version);`
--let $assert_text = The variable can be accessed with @@ sign
--let $assert_cond = $count = 1
--source include/assert.inc

# Check that it's read-only to a NON super privileged

# Create new user without super privilege
CREATE USER nosuper;
connect (conn_nosuper,localhost,nosuper,,);
--error ER_SPECIFIC_ACCESS_DENIED_ERROR
SET SESSION immediate_server_version = 0;
--disconnect conn_nosuper
--connection default
DROP USER nosuper;