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"""
unit tests for module logilab.common.db
"""
import socket
from logilab.common.testlib import TestCase, unittest_main
from logilab.common.db import *
from logilab.common.db import PREFERED_DRIVERS
from logilab.common.adbh import _SqliteAdvFuncHelper, _PGAdvFuncHelper
class PreferedDriverTC(TestCase):
def setUp(self):
self.drivers = {"pg":[('foo', None), ('bar', None)]}
self.drivers = {'pg' : ["foo", "bar"]}
def testNormal(self):
set_prefered_driver('pg','bar', self.drivers)
self.assertEquals('bar', self.drivers['pg'][0])
def testFailuresDb(self):
try:
set_prefered_driver('oracle','bar', self.drivers)
self.fail()
except UnknownDriver, exc:
self.assertEquals(exc.args[0], 'Unknown database oracle')
def testFailuresDriver(self):
try:
set_prefered_driver('pg','baz', self.drivers)
self.fail()
except UnknownDriver, exc:
self.assertEquals(exc.args[0], 'Unknown module baz for pg')
def testGlobalVar(self):
# XXX: Is this test supposed to be useful ? Is it supposed to test
# set_prefered_driver ?
old_drivers = PREFERED_DRIVERS['postgres'][:]
expected = old_drivers[:]
expected.insert(0, expected.pop(expected.index('pgdb')))
set_prefered_driver('postgres', 'pgdb')
self.assertEquals(PREFERED_DRIVERS['postgres'], expected)
set_prefered_driver('postgres', 'psycopg')
# self.assertEquals(PREFERED_DRIVERS['postgres'], old_drivers)
expected.insert(0, expected.pop(expected.index('psycopg')))
self.assertEquals(PREFERED_DRIVERS['postgres'], expected)
class GetCnxTC(TestCase):
def setUp(self):
if not socket.gethostname().startswith('crater'):
self.skip("those tests require specific DB configuration")
self.host = 'localhost' # None
self.db = 'template1'
self.user = 'adim'
self.passwd = 'adim'
def testPsyco(self):
set_prefered_driver('postgres', 'psycopg')
try:
cnx = get_connection('postgres',
self.host, self.db, self.user, self.passwd,
quiet=1)
except ImportError:
self.skip('python-psycopg is not installed')
def testPgdb(self):
set_prefered_driver('postgres', 'pgdb')
try:
cnx = get_connection('postgres',
self.host, self.db, self.user, self.passwd,
quiet=1)
except ImportError:
self.skip('python-pgsql is not installed')
def testPgsql(self):
set_prefered_driver('postgres', 'pyPgSQL.PgSQL')
try:
cnx = get_connection('postgres',
self.host, self.db, self.user, self.passwd,
quiet=1)
except ImportError:
self.skip('python-pygresql is not installed')
def testMysql(self):
set_prefered_driver('mysql', 'MySQLdb')
try:
cnx = get_connection('mysql', self.host, database='', user='root',
quiet=1)
except ImportError:
self.skip('python-mysqldb is not installed')
except Exception, ex:
# no mysql running ?
import MySQLdb
if not (isinstance(ex, MySQLdb.OperationalError) and ex.args[0] == 2003):
raise
def test_connection_wrap(self):
"""Tests the connection wrapping"""
try:
cnx = get_connection('postgres',
self.host, self.db, self.user, self.passwd,
quiet=1)
except ImportError:
self.skip('postgresql dbapi module not installed')
self.failIf(isinstance(cnx, PyConnection),
'cnx should *not* be a PyConnection instance')
cnx = get_connection('postgres',
self.host, self.db, self.user, self.passwd,
quiet=1, pywrap = True)
self.failUnless(isinstance(cnx, PyConnection),
'cnx should be a PyConnection instance')
def test_cursor_wrap(self):
"""Tests cursor wrapping"""
try:
cnx = get_connection('postgres',
self.host, self.db, self.user, self.passwd,
quiet=1, pywrap = True)
except ImportError:
self.skip('postgresql dbapi module not installed')
cursor = cnx.cursor()
self.failUnless(isinstance(cursor, PyCursor),
'cnx should be a PyCursor instance')
class DBAPIAdaptersTC(TestCase):
"""Tests DbApi adapters management"""
def setUp(self):
"""Memorize original PREFERED_DRIVERS"""
self.old_drivers = PREFERED_DRIVERS['postgres'][:]
self.host = 'crater.logilab.fr'
self.db = 'gincotest2'
self.user = 'adim'
self.passwd = 'adim'
def tearDown(self):
"""Reset PREFERED_DRIVERS as it was"""
PREFERED_DRIVERS['postgres'] = self.old_drivers
def test_raise(self):
self.assertRaises(UnknownDriver, get_dbapi_compliant_module, 'pougloup')
def test_pgdb_types(self):
"""Tests that NUMBER really wraps all number types"""
PREFERED_DRIVERS['postgres'] = ['pgdb']
#set_prefered_driver('postgres', 'pgdb')
try:
module = get_dbapi_compliant_module('postgres')
except ImportError:
self.skip('postgresql pgdb module not installed')
number_types = ('int2', 'int4', 'serial',
'int8', 'float4', 'float8',
'numeric', 'bool', 'money')
for num_type in number_types:
yield self.assertEquals, num_type, module.NUMBER
yield self.assertNotEquals, 'char', module.NUMBER
def test_pypgsql_getattr(self):
"""Tests the getattr() delegation for pyPgSQL"""
set_prefered_driver('postgres', 'pyPgSQL.PgSQL')
try:
module = get_dbapi_compliant_module('postgres')
except ImportError:
self.skip('postgresql dbapi module not installed')
try:
binary = module.BINARY
except AttributeError, err:
raise
self.fail(str(err))
def test_adv_func_helper(self):
try:
module = get_dbapi_compliant_module('postgres')
except ImportError:
self.skip('postgresql dbapi module not installed')
self.failUnless(isinstance(module.adv_func_helper, _PGAdvFuncHelper))
try:
module = get_dbapi_compliant_module('sqlite')
except ImportError:
self.skip('sqlite dbapi module not installed')
self.failUnless(isinstance(module.adv_func_helper, _SqliteAdvFuncHelper))
if __name__ == '__main__':
unittest_main()
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