mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-09-21 11:18:49 +03:00
345 lines
11 KiB
Python
345 lines
11 KiB
Python
#!/usr/bin/env python
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#
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# types_extras.py - tests for extras types conversions
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#
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# Copyright (C) 2008-2010 Federico Di Gregorio <fog@debian.org>
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#
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# psycopg2 is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# psycopg2 is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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# FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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# License for more details.
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try:
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import decimal
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except:
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pass
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import re
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import sys
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from testutils import unittest
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import psycopg2
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import psycopg2.extras
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import tests
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def skip_if_no_uuid(f):
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def skip_if_no_uuid_(self):
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try:
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cur = self.conn.cursor()
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cur.execute("select typname from pg_type where typname = 'uuid'")
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has = cur.fetchone()
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finally:
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self.conn.rollback()
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if has:
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return f(self)
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else:
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return self.skipTest("uuid type not available")
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return skip_if_no_uuid_
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def filter_scs(conn, s):
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if conn.get_parameter_status("standard_conforming_strings") == 'off':
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return s
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else:
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return s.replace("E'", "'")
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class TypesExtrasTests(unittest.TestCase):
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"""Test that all type conversions are working."""
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def setUp(self):
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self.conn = psycopg2.connect(tests.dsn)
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def execute(self, *args):
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curs = self.conn.cursor()
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curs.execute(*args)
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return curs.fetchone()[0]
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@skip_if_no_uuid
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def testUUID(self):
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import uuid
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psycopg2.extras.register_uuid()
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u = uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e350')
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s = self.execute("SELECT %s AS foo", (u,))
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self.failUnless(u == s)
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# must survive NULL cast to a uuid
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s = self.execute("SELECT NULL::uuid AS foo")
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self.failUnless(s is None)
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@skip_if_no_uuid
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def testUUIDARRAY(self):
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import uuid
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psycopg2.extras.register_uuid()
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u = [uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e350'), uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e352')]
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s = self.execute("SELECT %s AS foo", (u,))
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self.failUnless(u == s)
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# array with a NULL element
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u = [uuid.UUID('9c6d5a77-7256-457e-9461-347b4358e350'), None]
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s = self.execute("SELECT %s AS foo", (u,))
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self.failUnless(u == s)
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# must survive NULL cast to a uuid[]
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s = self.execute("SELECT NULL::uuid[] AS foo")
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self.failUnless(s is None)
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# what about empty arrays?
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s = self.execute("SELECT '{}'::uuid[] AS foo")
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self.failUnless(type(s) == list and len(s) == 0)
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def testINET(self):
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psycopg2.extras.register_inet()
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i = "192.168.1.0/24";
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s = self.execute("SELECT %s AS foo", (i,))
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self.failUnless(i == s)
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# must survive NULL cast to inet
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s = self.execute("SELECT NULL::inet AS foo")
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self.failUnless(s is None)
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def test_inet_conform(self):
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from psycopg2.extras import Inet
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i = Inet("192.168.1.0/24")
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a = psycopg2.extensions.adapt(i)
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a.prepare(self.conn)
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self.assertEqual(
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filter_scs(self.conn, "E'192.168.1.0/24'::inet"),
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a.getquoted())
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# adapts ok with unicode too
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i = Inet(u"192.168.1.0/24")
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a = psycopg2.extensions.adapt(i)
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a.prepare(self.conn)
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self.assertEqual(
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filter_scs(self.conn, "E'192.168.1.0/24'::inet"),
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a.getquoted())
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def test_adapt_fail(self):
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class Foo(object): pass
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self.assertRaises(psycopg2.ProgrammingError,
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psycopg2.extensions.adapt, Foo(), psycopg2.extensions.ISQLQuote, None)
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try:
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psycopg2.extensions.adapt(Foo(), psycopg2.extensions.ISQLQuote, None)
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except psycopg2.ProgrammingError, err:
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self.failUnless(str(err) == "can't adapt type 'Foo'")
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def skip_if_no_hstore(f):
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def skip_if_no_hstore_(self):
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from psycopg2.extras import HstoreAdapter
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oids = HstoreAdapter.get_oids(self.conn)
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if oids is None:
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return self.skipTest("hstore not available in test database")
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return f(self)
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return skip_if_no_hstore_
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class HstoreTestCase(unittest.TestCase):
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def setUp(self):
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self.conn = psycopg2.connect(tests.dsn)
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def test_adapt_8(self):
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if self.conn.server_version >= 90000:
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return self.skipTest("skipping dict adaptation with PG pre-9 syntax")
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from psycopg2.extras import HstoreAdapter
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o = {'a': '1', 'b': "'", 'c': None}
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if self.conn.encoding == 'UTF8':
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o['d'] = u'\xe0'
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a = HstoreAdapter(o)
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a.prepare(self.conn)
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q = a.getquoted()
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self.assert_(q.startswith("(("), q)
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self.assert_(q.endswith("))"), q)
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ii = q[1:-1].split("||")
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ii.sort()
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self.assertEqual(len(ii), len(o))
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self.assertEqual(ii[0], filter_scs(self.conn, "(E'a' => E'1')"))
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self.assertEqual(ii[1], filter_scs(self.conn, "(E'b' => E'''')"))
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self.assertEqual(ii[2], filter_scs(self.conn, "(E'c' => NULL)"))
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if 'd' in o:
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encc = u'\xe0'.encode(psycopg2.extensions.encodings[self.conn.encoding])
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self.assertEqual(ii[3], filter_scs(self.conn, "(E'd' => E'%s')" % encc))
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def test_adapt_9(self):
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if self.conn.server_version < 90000:
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return self.skipTest("skipping dict adaptation with PG 9 syntax")
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from psycopg2.extras import HstoreAdapter
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o = {'a': '1', 'b': "'", 'c': None}
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if self.conn.encoding == 'UTF8':
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o['d'] = u'\xe0'
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a = HstoreAdapter(o)
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a.prepare(self.conn)
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q = a.getquoted()
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m = re.match(r'hstore\(ARRAY\[([^\]]+)\], ARRAY\[([^\]]+)\]\)', q)
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self.assert_(m, repr(q))
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kk = m.group(1).split(", ")
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vv = m.group(2).split(", ")
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ii = zip(kk, vv)
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ii.sort()
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self.assertEqual(len(ii), len(o))
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self.assertEqual(ii[0], ("E'a'", "E'1'"))
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self.assertEqual(ii[1], ("E'b'", "E''''"))
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self.assertEqual(ii[2], ("E'c'", "NULL"))
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if 'd' in o:
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encc = u'\xe0'.encode(psycopg2.extensions.encodings[self.conn.encoding])
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self.assertEqual(ii[3], ("E'd'", "E'%s'" % encc))
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def test_parse(self):
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from psycopg2.extras import HstoreAdapter
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def ok(s, d):
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self.assertEqual(HstoreAdapter.parse(s, None), d)
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ok(None, None)
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ok('', {})
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ok('"a"=>"1", "b"=>"2"', {'a': '1', 'b': '2'})
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ok('"a" => "1" ,"b" => "2"', {'a': '1', 'b': '2'})
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ok('"a"=>NULL, "b"=>"2"', {'a': None, 'b': '2'})
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ok(r'"a"=>"\"", "\""=>"2"', {'a': '"', '"': '2'})
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ok('"a"=>"\'", "\'"=>"2"', {'a': "'", "'": '2'})
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ok('"a"=>"1", "b"=>NULL', {'a': '1', 'b': None})
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ok(r'"a\\"=>"1"', {'a\\': '1'})
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ok(r'"a\""=>"1"', {'a"': '1'})
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ok(r'"a\\\""=>"1"', {r'a\"': '1'})
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ok(r'"a\\\\\""=>"1"', {r'a\\"': '1'})
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def ko(s):
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self.assertRaises(psycopg2.InterfaceError,
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HstoreAdapter.parse, s, None)
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ko('a')
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ko('"a"')
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ko(r'"a\\""=>"1"')
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ko(r'"a\\\\""=>"1"')
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ko('"a=>"1"')
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ko('"a"=>"1", "b"=>NUL')
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@skip_if_no_hstore
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def test_register_conn(self):
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from psycopg2.extras import register_hstore
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register_hstore(self.conn)
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cur = self.conn.cursor()
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cur.execute("select null::hstore, ''::hstore, 'a => b'::hstore")
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t = cur.fetchone()
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self.assert_(t[0] is None)
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self.assertEqual(t[1], {})
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self.assertEqual(t[2], {'a': 'b'})
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@skip_if_no_hstore
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def test_register_curs(self):
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from psycopg2.extras import register_hstore
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cur = self.conn.cursor()
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register_hstore(cur)
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cur.execute("select null::hstore, ''::hstore, 'a => b'::hstore")
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t = cur.fetchone()
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self.assert_(t[0] is None)
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self.assertEqual(t[1], {})
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self.assertEqual(t[2], {'a': 'b'})
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@skip_if_no_hstore
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def test_register_unicode(self):
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from psycopg2.extras import register_hstore
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register_hstore(self.conn, unicode=True)
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cur = self.conn.cursor()
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cur.execute("select null::hstore, ''::hstore, 'a => b'::hstore")
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t = cur.fetchone()
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self.assert_(t[0] is None)
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self.assertEqual(t[1], {})
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self.assertEqual(t[2], {u'a': u'b'})
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self.assert_(isinstance(t[2].keys()[0], unicode))
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self.assert_(isinstance(t[2].values()[0], unicode))
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@skip_if_no_hstore
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def test_register_globally(self):
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from psycopg2.extras import register_hstore, HstoreAdapter
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oids = HstoreAdapter.get_oids(self.conn)
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try:
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register_hstore(self.conn, globally=True)
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conn2 = psycopg2.connect(self.conn.dsn)
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cur2 = self.conn.cursor()
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cur2.execute("select 'a => b'::hstore")
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r = cur2.fetchone()
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self.assert_(isinstance(r[0], dict))
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conn2.close()
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finally:
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psycopg2.extensions.string_types.pop(oids[0])
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# verify the caster is not around anymore
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cur = self.conn.cursor()
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cur.execute("select 'a => b'::hstore")
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r = cur.fetchone()
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self.assert_(isinstance(r[0], str))
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@skip_if_no_hstore
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def test_roundtrip(self):
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from psycopg2.extras import register_hstore
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register_hstore(self.conn)
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cur = self.conn.cursor()
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def ok(d):
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cur.execute("select %s", (d,))
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d1 = cur.fetchone()[0]
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self.assertEqual(len(d), len(d1))
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for k in d:
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self.assert_(k in d1, k)
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self.assertEqual(d[k], d1[k])
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ok({})
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ok({'a': 'b', 'c': None})
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ab = map(chr, range(32, 128))
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ok(dict(zip(ab, ab)))
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ok({''.join(ab): ''.join(ab)})
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self.conn.set_client_encoding('latin1')
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ab = map(chr, range(1, 256))
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ok({''.join(ab): ''.join(ab)})
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ok(dict(zip(ab, ab)))
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@skip_if_no_hstore
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def test_roundtrip_unicode(self):
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from psycopg2.extras import register_hstore
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register_hstore(self.conn, unicode=True)
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cur = self.conn.cursor()
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def ok(d):
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cur.execute("select %s", (d,))
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d1 = cur.fetchone()[0]
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self.assertEqual(len(d), len(d1))
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for k, v in d1.iteritems():
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self.assert_(k in d, k)
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self.assertEqual(d[k], v)
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self.assert_(isinstance(k, unicode))
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self.assert_(v is None or isinstance(v, unicode))
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ok({})
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ok({'a': 'b', 'c': None, 'd': u'\u20ac', u'\u2603': 'e'})
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ab = map(unichr, range(1, 1024))
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ok({u''.join(ab): u''.join(ab)})
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ok(dict(zip(ab, ab)))
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def test_suite():
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return unittest.TestLoader().loadTestsFromName(__name__)
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if __name__ == "__main__":
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unittest.main()
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