mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-27 03:13:43 +03:00
344 lines
12 KiB
Python
Executable File
344 lines
12 KiB
Python
Executable File
#!/usr/bin/env python
|
|
#
|
|
# types_basic.py - tests for basic types conversions
|
|
#
|
|
# Copyright (C) 2004-2010 Federico Di Gregorio <fog@debian.org>
|
|
#
|
|
# psycopg2 is free software: you can redistribute it and/or modify it
|
|
# under the terms of the GNU Lesser General Public License as published
|
|
# by the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# In addition, as a special exception, the copyright holders give
|
|
# permission to link this program with the OpenSSL library (or with
|
|
# modified versions of OpenSSL that use the same license as OpenSSL),
|
|
# and distribute linked combinations including the two.
|
|
#
|
|
# You must obey the GNU Lesser General Public License in all respects for
|
|
# all of the code used other than OpenSSL.
|
|
#
|
|
# psycopg2 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 Lesser General Public
|
|
# License for more details.
|
|
|
|
try:
|
|
import decimal
|
|
except:
|
|
pass
|
|
import sys
|
|
import testutils
|
|
from testutils import unittest, skip_if_broken_hex_binary
|
|
from testconfig import dsn
|
|
|
|
import psycopg2
|
|
from psycopg2.extensions import b
|
|
|
|
|
|
class TypesBasicTests(unittest.TestCase):
|
|
"""Test that all type conversions are working."""
|
|
|
|
def setUp(self):
|
|
self.conn = psycopg2.connect(dsn)
|
|
|
|
def tearDown(self):
|
|
self.conn.close()
|
|
|
|
def execute(self, *args):
|
|
curs = self.conn.cursor()
|
|
curs.execute(*args)
|
|
return curs.fetchone()[0]
|
|
|
|
def testQuoting(self):
|
|
s = "Quote'this\\! ''ok?''"
|
|
self.failUnless(self.execute("SELECT %s AS foo", (s,)) == s,
|
|
"wrong quoting: " + s)
|
|
|
|
def testUnicode(self):
|
|
s = u"Quote'this\\! ''ok?''"
|
|
self.failUnless(self.execute("SELECT %s AS foo", (s,)) == s,
|
|
"wrong unicode quoting: " + s)
|
|
|
|
def testNumber(self):
|
|
s = self.execute("SELECT %s AS foo", (1971,))
|
|
self.failUnless(s == 1971, "wrong integer quoting: " + str(s))
|
|
s = self.execute("SELECT %s AS foo", (1971L,))
|
|
self.failUnless(s == 1971L, "wrong integer quoting: " + str(s))
|
|
if sys.version_info[0:2] < (2, 4):
|
|
s = self.execute("SELECT %s AS foo", (19.10,))
|
|
self.failUnless(abs(s - 19.10) < 0.001,
|
|
"wrong float quoting: " + str(s))
|
|
|
|
def testBoolean(self):
|
|
x = self.execute("SELECT %s as foo", (False,))
|
|
self.assert_(x is False)
|
|
x = self.execute("SELECT %s as foo", (True,))
|
|
self.assert_(x is True)
|
|
|
|
def testDecimal(self):
|
|
if sys.version_info[0:2] >= (2, 4):
|
|
s = self.execute("SELECT %s AS foo", (decimal.Decimal("19.10"),))
|
|
self.failUnless(s - decimal.Decimal("19.10") == 0,
|
|
"wrong decimal quoting: " + str(s))
|
|
s = self.execute("SELECT %s AS foo", (decimal.Decimal("NaN"),))
|
|
self.failUnless(str(s) == "NaN", "wrong decimal quoting: " + str(s))
|
|
self.failUnless(type(s) == decimal.Decimal, "wrong decimal conversion: " + repr(s))
|
|
s = self.execute("SELECT %s AS foo", (decimal.Decimal("infinity"),))
|
|
self.failUnless(str(s) == "NaN", "wrong decimal quoting: " + str(s))
|
|
self.failUnless(type(s) == decimal.Decimal, "wrong decimal conversion: " + repr(s))
|
|
s = self.execute("SELECT %s AS foo", (decimal.Decimal("-infinity"),))
|
|
self.failUnless(str(s) == "NaN", "wrong decimal quoting: " + str(s))
|
|
self.failUnless(type(s) == decimal.Decimal, "wrong decimal conversion: " + repr(s))
|
|
else:
|
|
return self.skipTest("decimal not available")
|
|
|
|
def testFloatNan(self):
|
|
try:
|
|
float("nan")
|
|
except ValueError:
|
|
return self.skipTest("nan not available on this platform")
|
|
|
|
s = self.execute("SELECT %s AS foo", (float("nan"),))
|
|
self.failUnless(str(s) == "nan", "wrong float quoting: " + str(s))
|
|
self.failUnless(type(s) == float, "wrong float conversion: " + repr(s))
|
|
|
|
def testFloatInf(self):
|
|
try:
|
|
self.execute("select 'inf'::float")
|
|
except psycopg2.DataError:
|
|
return self.skipTest("inf::float not available on the server")
|
|
except ValueError:
|
|
return self.skipTest("inf not available on this platform")
|
|
s = self.execute("SELECT %s AS foo", (float("inf"),))
|
|
self.failUnless(str(s) == "inf", "wrong float quoting: " + str(s))
|
|
self.failUnless(type(s) == float, "wrong float conversion: " + repr(s))
|
|
|
|
s = self.execute("SELECT %s AS foo", (float("-inf"),))
|
|
self.failUnless(str(s) == "-inf", "wrong float quoting: " + str(s))
|
|
|
|
@skip_if_broken_hex_binary
|
|
def testBinary(self):
|
|
if sys.version_info[0] < 3:
|
|
s = ''.join([chr(x) for x in range(256)])
|
|
b = psycopg2.Binary(s)
|
|
buf = self.execute("SELECT %s::bytea AS foo", (b,))
|
|
self.assertEqual(s, str(buf))
|
|
else:
|
|
s = bytes(range(256))
|
|
b = psycopg2.Binary(s)
|
|
buf = self.execute("SELECT %s::bytea AS foo", (b,))
|
|
self.assertEqual(s, buf)
|
|
|
|
def testBinaryNone(self):
|
|
b = psycopg2.Binary(None)
|
|
buf = self.execute("SELECT %s::bytea AS foo", (b,))
|
|
self.assertEqual(buf, None)
|
|
|
|
def testBinaryEmptyString(self):
|
|
# test to make sure an empty Binary is converted to an empty string
|
|
if sys.version_info[0] < 3:
|
|
b = psycopg2.Binary('')
|
|
self.assertEqual(str(b), "''::bytea")
|
|
else:
|
|
b = psycopg2.Binary(bytes([]))
|
|
self.assertEqual(str(b), "''::bytea")
|
|
|
|
@skip_if_broken_hex_binary
|
|
def testBinaryRoundTrip(self):
|
|
# test to make sure buffers returned by psycopg2 are
|
|
# understood by execute:
|
|
if sys.version_info[0] < 3:
|
|
s = ''.join([chr(x) for x in range(256)])
|
|
buf = self.execute("SELECT %s::bytea AS foo", (psycopg2.Binary(s),))
|
|
buf2 = self.execute("SELECT %s::bytea AS foo", (buf,))
|
|
self.assertEqual(s, str(buf2))
|
|
else:
|
|
s = bytes(range(256))
|
|
buf = self.execute("SELECT %s::bytea AS foo", (psycopg2.Binary(s),))
|
|
buf2 = self.execute("SELECT %s::bytea AS foo", (buf,))
|
|
self.assertEqual(s, buf2)
|
|
|
|
def testArray(self):
|
|
s = self.execute("SELECT %s AS foo", ([[1,2],[3,4]],))
|
|
self.failUnlessEqual(s, [[1,2],[3,4]])
|
|
s = self.execute("SELECT %s AS foo", (['one', 'two', 'three'],))
|
|
self.failUnlessEqual(s, ['one', 'two', 'three'])
|
|
|
|
def testEmptyArrayRegression(self):
|
|
# ticket #42
|
|
import datetime
|
|
curs = self.conn.cursor()
|
|
curs.execute("create table array_test (id integer, col timestamp without time zone[])")
|
|
|
|
curs.execute("insert into array_test values (%s, %s)", (1, [datetime.date(2011,2,14)]))
|
|
curs.execute("select col from array_test where id = 1")
|
|
self.assertEqual(curs.fetchone()[0], [datetime.datetime(2011, 2, 14, 0, 0)])
|
|
|
|
curs.execute("insert into array_test values (%s, %s)", (2, []))
|
|
curs.execute("select col from array_test where id = 2")
|
|
self.assertEqual(curs.fetchone()[0], [])
|
|
|
|
def testEmptyArray(self):
|
|
s = self.execute("SELECT '{}' AS foo")
|
|
self.failUnlessEqual(s, [])
|
|
s = self.execute("SELECT '{}'::text[] AS foo")
|
|
self.failUnlessEqual(s, [])
|
|
s = self.execute("SELECT %s AS foo", ([],))
|
|
self.failUnlessEqual(s, [])
|
|
s = self.execute("SELECT 1 != ALL(%s)", ([],))
|
|
self.failUnlessEqual(s, True)
|
|
# but don't break the strings :)
|
|
s = self.execute("SELECT '{}'::text AS foo")
|
|
self.failUnlessEqual(s, "{}")
|
|
|
|
@skip_if_broken_hex_binary
|
|
@testutils.skip_from_python(3)
|
|
def testTypeRoundtripBuffer(self):
|
|
o1 = buffer("".join(map(chr, range(256))))
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(type(o1), type(o2))
|
|
|
|
# Test with an empty buffer
|
|
o1 = buffer("")
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(type(o1), type(o2))
|
|
self.assertEqual(str(o1), str(o2))
|
|
|
|
@skip_if_broken_hex_binary
|
|
@testutils.skip_from_python(3)
|
|
def testTypeRoundtripBufferArray(self):
|
|
o1 = buffer("".join(map(chr, range(256))))
|
|
o1 = [o1]
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(type(o1[0]), type(o2[0]))
|
|
self.assertEqual(str(o1[0]), str(o2[0]))
|
|
|
|
@skip_if_broken_hex_binary
|
|
@testutils.skip_before_python(3)
|
|
def testTypeRoundtripBytes(self):
|
|
o1 = bytes(range(256))
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(memoryview, type(o2))
|
|
|
|
# Test with an empty buffer
|
|
o1 = bytes([])
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(memoryview, type(o2))
|
|
|
|
@skip_if_broken_hex_binary
|
|
@testutils.skip_before_python(3)
|
|
def testTypeRoundtripBytesArray(self):
|
|
o1 = bytes(range(256))
|
|
o1 = [o1]
|
|
o2 = self.execute("select %s;", (o1,))
|
|
self.assertEqual(memoryview, type(o2[0]))
|
|
|
|
@skip_if_broken_hex_binary
|
|
@testutils.skip_before_python(2, 6)
|
|
def testAdaptBytearray(self):
|
|
o1 = bytearray(range(256))
|
|
o2 = self.execute("select %s;", (o1,))
|
|
|
|
if sys.version_info[0] < 3:
|
|
self.assertEqual(buffer, type(o2))
|
|
else:
|
|
self.assertEqual(memoryview, type(o2))
|
|
|
|
self.assertEqual(len(o1), len(o2))
|
|
for c1, c2 in zip(o1, o2):
|
|
self.assertEqual(c1, ord(c2))
|
|
|
|
# Test with an empty buffer
|
|
o1 = bytearray([])
|
|
o2 = self.execute("select %s;", (o1,))
|
|
|
|
self.assertEqual(len(o2), 0)
|
|
if sys.version_info[0] < 3:
|
|
self.assertEqual(buffer, type(o2))
|
|
else:
|
|
self.assertEqual(memoryview, type(o2))
|
|
|
|
@skip_if_broken_hex_binary
|
|
@testutils.skip_before_python(2, 7)
|
|
def testAdaptMemoryview(self):
|
|
o1 = memoryview(bytearray(range(256)))
|
|
o2 = self.execute("select %s;", (o1,))
|
|
if sys.version_info[0] < 3:
|
|
self.assertEqual(buffer, type(o2))
|
|
else:
|
|
self.assertEqual(memoryview, type(o2))
|
|
|
|
# Test with an empty buffer
|
|
o1 = memoryview(bytearray([]))
|
|
o2 = self.execute("select %s;", (o1,))
|
|
if sys.version_info[0] < 3:
|
|
self.assertEqual(buffer, type(o2))
|
|
else:
|
|
self.assertEqual(memoryview, type(o2))
|
|
|
|
def testByteaHexCheckFalsePositive(self):
|
|
# the check \x -> x to detect bad bytea decode
|
|
# may be fooled if the first char is really an 'x'
|
|
o1 = psycopg2.Binary(b('x'))
|
|
o2 = self.execute("SELECT %s::bytea AS foo", (o1,))
|
|
self.assertEqual(b('x'), o2[0])
|
|
|
|
|
|
class AdaptSubclassTest(unittest.TestCase):
|
|
def test_adapt_subtype(self):
|
|
from psycopg2.extensions import adapt
|
|
class Sub(str): pass
|
|
s1 = "hel'lo"
|
|
s2 = Sub(s1)
|
|
self.assertEqual(adapt(s1).getquoted(), adapt(s2).getquoted())
|
|
|
|
def test_adapt_most_specific(self):
|
|
from psycopg2.extensions import adapt, register_adapter, AsIs
|
|
|
|
class A(object): pass
|
|
class B(A): pass
|
|
class C(B): pass
|
|
|
|
register_adapter(A, lambda a: AsIs("a"))
|
|
register_adapter(B, lambda b: AsIs("b"))
|
|
try:
|
|
self.assertEqual(b('b'), adapt(C()).getquoted())
|
|
finally:
|
|
del psycopg2.extensions.adapters[A, psycopg2.extensions.ISQLQuote]
|
|
del psycopg2.extensions.adapters[B, psycopg2.extensions.ISQLQuote]
|
|
|
|
@testutils.skip_from_python(3)
|
|
def test_no_mro_no_joy(self):
|
|
from psycopg2.extensions import adapt, register_adapter, AsIs
|
|
|
|
class A: pass
|
|
class B(A): pass
|
|
|
|
register_adapter(A, lambda a: AsIs("a"))
|
|
try:
|
|
self.assertRaises(psycopg2.ProgrammingError, adapt, B())
|
|
finally:
|
|
del psycopg2.extensions.adapters[A, psycopg2.extensions.ISQLQuote]
|
|
|
|
|
|
@testutils.skip_before_python(3)
|
|
def test_adapt_subtype_3(self):
|
|
from psycopg2.extensions import adapt, register_adapter, AsIs
|
|
|
|
class A: pass
|
|
class B(A): pass
|
|
|
|
register_adapter(A, lambda a: AsIs("a"))
|
|
try:
|
|
self.assertEqual(b("a"), adapt(B()).getquoted())
|
|
finally:
|
|
del psycopg2.extensions.adapters[A, psycopg2.extensions.ISQLQuote]
|
|
|
|
|
|
def test_suite():
|
|
return unittest.TestLoader().loadTestsFromName(__name__)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|
|
|