# suite/funcs_1/t/is_character_sets.test
#
# Check the layout of information_schema.character_sets and run some
# functionality related tests.
#
# Author:
# 2008-01-23 mleich WL#4203 Reorganize and fix the data dictionary tests of
#                           testsuite funcs_1
#                   Create this script based on older scripts and new code.
#

if (`SELECT VERSION() LIKE '%embedded%'`)
{
   --skip Bug#37456 funcs_1: Several tests crash when used with embedded server
}

let $is_table = CHARACTER_SETS;

# The table INFORMATION_SCHEMA.CHARACTER_SETS must exist
eval SHOW TABLES FROM information_schema LIKE '$is_table';

--echo #######################################################################
--echo # Testcase 3.2.1.1: INFORMATION_SCHEMA tables can be queried via SELECT
--echo #######################################################################
# Ensure that every INFORMATION_SCHEMA table can be queried with a SELECT
# statement, just as if it were an ordinary user-defined table.
#
--source suite/funcs_1/datadict/is_table_query.inc


--echo #########################################################################
--echo # Testcase 3.2.2.1: INFORMATION_SCHEMA.CHARACTER_SETS layout
--echo #########################################################################
# Ensure that the INFORMATION_SCHEMA.CHARACTER_SETS table has the following
# columns, in the following order:
#
# CHARACTER_SET_NAME (shows a character set name),
# DEFAULT_COLLATE_NAME (shows the name of the default collation for that
#       character set),
# DESCRIPTION (shows a descriptive name for that character set),
# MAXLEN (shows the number of bytes used to store each character supported by
#       that character set).
#
eval DESCRIBE          information_schema.$is_table;
eval SHOW CREATE TABLE information_schema.$is_table;
eval SHOW COLUMNS FROM information_schema.$is_table;

# Note: Retrieval of information within information_schema.columns about
#       information_schema.character_sets is in is_columns_is.test.
#       Retrieval of information_schema.character_sets content is in
#       charset_collation.inc (sourced by charset_collation_*.test).


echo # Testcases 3.2.2.2 and 3.2.2.3 are checked in suite/funcs_1/t/charset_collation*.test;

--echo ########################################################################
--echo # Testcases 3.2.1.3-3.2.1.5 + 3.2.1.8-3.2.1.12: INSERT/UPDATE/DELETE and
--echo #           DDL on INFORMATION_SCHEMA tables are not supported
--echo ########################################################################
# 3.2.1.3:  Ensure that no user may execute an INSERT statement on any
#           INFORMATION_SCHEMA table.
# 3.2.1.4:  Ensure that no user may execute an UPDATE statement on any
#           INFORMATION_SCHEMA table.
# 3.2.1.5:  Ensure that no user may execute a DELETE statement on any
#           INFORMATION_SCHEMA table.
# 3.2.1.8:  Ensure that no user may create an index on an
#           INFORMATION_SCHEMA table.
# 3.2.1.9:  Ensure that no user may alter the definition of an
#           INFORMATION_SCHEMA table.
# 3.2.1.10: Ensure that no user may drop an INFORMATION_SCHEMA table.
# 3.2.1.11: Ensure that no user may move an INFORMATION_SCHEMA table to any
#           other database.
# 3.2.1.12: Ensure that no user may directly add to, alter, or delete any data
#           in an INFORMATION_SCHEMA table.
#
--disable_warnings
DROP DATABASE IF EXISTS db_datadict;
--enable_warnings
CREATE DATABASE db_datadict;

--error ER_DBACCESS_DENIED_ERROR
INSERT INTO information_schema.character_sets
SELECT * FROM information_schema.character_sets;

--error ER_DBACCESS_DENIED_ERROR
UPDATE information_schema.character_sets SET description = 'just updated';

--error ER_DBACCESS_DENIED_ERROR
DELETE FROM information_schema.character_sets WHERE table_name = 't1';
--error ER_DBACCESS_DENIED_ERROR
TRUNCATE information_schema.character_sets;

--error ER_DBACCESS_DENIED_ERROR
CREATE INDEX my_idx ON information_schema.character_sets(character_set_name);

--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.character_sets DROP PRIMARY KEY;
--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.character_sets ADD f1 INT;

--error ER_DBACCESS_DENIED_ERROR
DROP TABLE information_schema.character_sets;

--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.character_sets RENAME db_datadict.character_sets;
--error ER_DBACCESS_DENIED_ERROR
ALTER TABLE information_schema.character_sets
RENAME information_schema.xcharacter_sets;

# Cleanup
DROP DATABASE db_datadict;