#!/usr/bin/env python2

import sys
def gen_test(n):
    print "CREATE TABLE t (a CHAR(%d));" % (n)
    for v in [ 'hi', 'there', 'people' ]:
        print "INSERT INTO t VALUES ('%s');" % (v)
    for i in range(2,256):
        if i != n: # if i < n:
            print "--replace_regex /MariaDB/XYZ/ /MySQL/XYZ/"
            print "--error ER_UNSUPPORTED_EXTENSION"
        else:
            print "CREATE TABLE ti LIKE t;"
            print "ALTER TABLE ti ENGINE=myisam;"
            print "INSERT INTO ti SELECT * FROM t;"
            print "ALTER TABLE ti CHANGE COLUMN a b CHAR(%d);" % (i)
            print "ALTER TABLE ti CHANGE COLUMN b a CHAR(%d);" % (i)
        print "ALTER TABLE t CHANGE COLUMN a b CHAR(%d);" % (i)
        if i != n: # if i < n:
            pass
        else:
            print "ALTER TABLE t CHANGE COLUMN b a CHAR(%d);" % (i)
            print "let $diff_tables=test.t, test.ti;"
            print "source include/diff_tables.inc;"
            print "DROP TABLE ti;"
    print "DROP TABLE t;"

def main():
    print "source include/have_tokudb.inc;"
    print "# this test is generated by change_char_rename.py"
    print "# test char expansion + rename is hot"
    print "--disable_warnings"
    print "DROP TABLE IF EXISTS t,ti;"
    print "--enable_warnings"
    print "SET SESSION DEFAULT_STORAGE_ENGINE=\"TokuDB\";"
    print "SET SESSION TOKUDB_DISABLE_SLOW_ALTER=1;"
    # all n takes too long to run, so here is a subset of tests
    for n in [ 1, 2, 3, 4, 5, 6, 7, 8, 16, 31, 32, 63, 64, 127, 128, 254, 255 ]:
        gen_test(n)
    return 0
sys.exit(main())
