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dbquery_tests.py
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dbquery_tests.py
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# -*- coding: utf-8 -*-
##
## $Id$
##
## This file is part of CDS Invenio.
## Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007 CERN.
##
## CDS Invenio is free software; you can redistribute it and/or
## modify it under the terms of the GNU General Public License as
## published by the Free Software Foundation; either version 2 of the
## License, or (at your option) any later version.
##
## CDS Invenio is distributed in the hope that it will be useful, but
## WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
## General Public License for more details.
##
## You should have received a copy of the GNU General Public License
## along with CDS Invenio; if not, write to the Free Software Foundation, Inc.,
## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""Unit tests for dbquery library."""
__revision__ = "$Id$"
import unittest
from invenio import dbquery
class TableUpdateTimesTest(unittest.TestCase):
"""Test functions related to the update_times of MySQL tables."""
def _check_table_update_time(self, tablename):
"""Helper function to check update time of TABLENAME."""
# detect MySQL version number:
res = dbquery.run_sql("SELECT VERSION()")
mysql_server_version = res[0][0]
if mysql_server_version.startswith("5."):
# MySQL-5 provides INFORMATION_SCHEMA:
query = """SELECT UPDATE_TIME FROM INFORMATION_SCHEMA.TABLES
WHERE table_name='%s'""" % tablename
tablename_update_time = str(dbquery.run_sql(query)[0][0])
elif mysql_server_version.startswith("4.1"):
# MySQL-4.1 has it on 12th position:
query = """SHOW TABLE STATUS LIKE '%s'""" % tablename
tablename_update_time = str(dbquery.run_sql(query)[0][12])
elif mysql_server_version.startswith("4.0"):
# MySQL-4.0 has it on 11th position:
query = """SHOW TABLE STATUS LIKE '%s'""" % tablename
tablename_update_time = str(dbquery.run_sql(query)[0][11])
else:
tablename_update_time = "MYSQL SERVER VERSION NOT DETECTED"
# compare it with the one detected by the function:
self.assertEqual(tablename_update_time,
dbquery.get_table_update_time(tablename))
def test_single_table_update_time(self):
"""dbquery - single table (with indexes) update time detection"""
# NOTE: this tests usual "long" branch of
# get_table_update_time()
self._check_table_update_time("collection")
def test_empty_table_update_time(self):
"""dbquery - empty table (no indexes) update time detection"""
# NOTE: this tests unusual "None" branch of
# get_table_update_time()
# create empty test table
test_table = "tmpTESTTABLE123"
dbquery.run_sql("CREATE TABLE IF NOT EXISTS %s (a INT)" % test_table)
# run the test:
self._check_table_update_time(test_table)
# drop empty test table
dbquery.run_sql("DROP TABLE %s" % test_table)
def test_utf8_python_mysqldb_mysql_storage_chain(self):
"""dbquery - UTF-8 in Python<->MySQLdb<->MySQL storage chain"""
# NOTE: This test test creates, uses and destroys a temporary
# table called "test__invenio__utf8".
x = "β" # Greek beta in UTF-8 is 0xCEB2
dbquery.run_sql("CREATE TEMPORARY TABLE test__invenio__utf8 (x char(1), y varbinary(2)) DEFAULT CHARACTER SET utf8")
dbquery.run_sql("INSERT INTO test__invenio__utf8 (x, y) VALUES (%s, %s)", (x, x))
res = dbquery.run_sql("SELECT x,y,HEX(x),HEX(y),LENGTH(x),LENGTH(y),CHAR_LENGTH(x),CHAR_LENGTH(y) FROM test__invenio__utf8")
self.assertEqual(res[0],
('\xce\xb2', '\xce\xb2', 'CEB2', 'CEB2', 2L, 2L, 1L, 2L))
dbquery.run_sql("DROP TEMPORARY TABLE test__invenio__utf8")
def create_test_suite():
"""Return test suite for the user handling."""
return unittest.TestSuite((
unittest.makeSuite(TableUpdateTimesTest,'test'),
))
if __name__ == "__main__":
unittest.TextTestRunner(verbosity=2).run(create_test_suite())

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