psycopg2/tests/types_extras.py

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#!/usr/bin/env python
# types_extras.py - tests for extras types conversions
#
# Copyright (C) 2008 Federico Di Gregorio <fog@debian.org>
#
# This program 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, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTIBILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
try:
import decimal
except:
pass
import sys
import unittest
import psycopg2
import psycopg2.extras
import tests
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class TypesExtrasTests(unittest.TestCase):
"""Test that all type conversions are working."""
def setUp(self):
self.conn = psycopg2.connect(tests.dsn)
def execute(self, *args):
curs = self.conn.cursor()
curs.execute(*args)
return curs.fetchone()[0]
def testUUID(self):
try:
import uuid
psycopg2.extras.register_uuid()
except:
return
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u = uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e350')
s = self.execute("SELECT %s AS foo", (u,))
self.failUnless(u == s)
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# must survive NULL cast to a uuid
s = self.execute("SELECT NULL::uuid AS foo")
self.failUnless(s is None)
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def testUUIDARRAY(self):
try:
import uuid
psycopg2.extras.register_uuid()
except:
return
u = [uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e350'), uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e352')]
s = self.execute("SELECT %s AS foo", (u,))
self.failUnless(u == s)
# array with a NULL element
u = [uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e350'), None]
s = self.execute("SELECT %s AS foo", (u,))
self.failUnless(u == s)
# must survive NULL cast to a uuid[]
s = self.execute("SELECT NULL::uuid[] AS foo")
self.failUnless(s is None)
# what about empty arrays?
s = self.execute("SELECT '{}'::uuid[] AS foo")
self.failUnless(type(s) == list and len(s) == 0)
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def testINET(self):
psycopg2.extras.register_inet()
i = "192.168.1.0/24";
s = self.execute("SELECT %s AS foo", (i,))
self.failUnless(i == s)
# must survive NULL cast to inet
s = self.execute("SELECT NULL::inet AS foo")
self.failUnless(s is None)
def test_adapt_fail(self):
class Foo(object): pass
self.assertRaises(psycopg2.ProgrammingError,
psycopg2.extensions.adapt, Foo(), psycopg2.extensions.ISQLQuote, None)
try:
psycopg2.extensions.adapt(Foo(), psycopg2.extensions.ISQLQuote, None)
except psycopg2.ProgrammingError, err:
self.failUnless(str(err) == "can't adapt type 'Foo'")
def test_suite():
return unittest.TestLoader().loadTestsFromName(__name__)
if __name__ == "__main__":
unittest.main()