mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-16 05:56:34 +03:00
3bfbd3a0a5
I'll be honest: I lucked out, I didn't think about this combination. But maybe sheer luck, maybe using common code paths, it just works. Let's make it stays so.
401 lines
15 KiB
Python
Executable File
401 lines
15 KiB
Python
Executable File
#!/usr/bin/env python
|
|
|
|
# test_sql.py - tests for the psycopg2.sql module
|
|
#
|
|
# Copyright (C) 2016 Daniele Varrazzo <daniele.varrazzo@gmail.com>
|
|
#
|
|
# 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.
|
|
|
|
import datetime as dt
|
|
from cStringIO import StringIO
|
|
from testutils import (unittest, ConnectingTestCase,
|
|
skip_before_postgres, skip_before_python, skip_copy_if_green)
|
|
|
|
import psycopg2
|
|
from psycopg2 import sql
|
|
|
|
|
|
class SqlFormatTests(ConnectingTestCase):
|
|
@skip_before_python(2, 7)
|
|
def test_pos(self):
|
|
s = sql.SQL("select {} from {}").format(
|
|
sql.Identifier('field'), sql.Identifier('table'))
|
|
s1 = s.as_string(self.conn)
|
|
self.assert_(isinstance(s1, str))
|
|
self.assertEqual(s1, 'select "field" from "table"')
|
|
|
|
def test_pos_spec(self):
|
|
s = sql.SQL("select {0} from {1}").format(
|
|
sql.Identifier('field'), sql.Identifier('table'))
|
|
s1 = s.as_string(self.conn)
|
|
self.assert_(isinstance(s1, str))
|
|
self.assertEqual(s1, 'select "field" from "table"')
|
|
|
|
s = sql.SQL("select {1} from {0}").format(
|
|
sql.Identifier('table'), sql.Identifier('field'))
|
|
s1 = s.as_string(self.conn)
|
|
self.assert_(isinstance(s1, str))
|
|
self.assertEqual(s1, 'select "field" from "table"')
|
|
|
|
def test_dict(self):
|
|
s = sql.SQL("select {f} from {t}").format(
|
|
f=sql.Identifier('field'), t=sql.Identifier('table'))
|
|
s1 = s.as_string(self.conn)
|
|
self.assert_(isinstance(s1, str))
|
|
self.assertEqual(s1, 'select "field" from "table"')
|
|
|
|
def test_unicode(self):
|
|
s = sql.SQL(u"select {0} from {1}").format(
|
|
sql.Identifier(u'field'), sql.Identifier('table'))
|
|
s1 = s.as_string(self.conn)
|
|
self.assert_(isinstance(s1, unicode))
|
|
self.assertEqual(s1, u'select "field" from "table"')
|
|
|
|
def test_compose_literal(self):
|
|
s = sql.SQL("select {0};").format(sql.Literal(dt.date(2016, 12, 31)))
|
|
s1 = s.as_string(self.conn)
|
|
self.assertEqual(s1, "select '2016-12-31'::date;")
|
|
|
|
def test_compose_empty(self):
|
|
s = sql.SQL("select foo;").format()
|
|
s1 = s.as_string(self.conn)
|
|
self.assertEqual(s1, "select foo;")
|
|
|
|
def test_percent_escape(self):
|
|
s = sql.SQL("42 % {0}").format(sql.Literal(7))
|
|
s1 = s.as_string(self.conn)
|
|
self.assertEqual(s1, "42 % 7")
|
|
|
|
def test_braces_escape(self):
|
|
s = sql.SQL("{{{0}}}").format(sql.Literal(7))
|
|
self.assertEqual(s.as_string(self.conn), "{7}")
|
|
s = sql.SQL("{{1,{0}}}").format(sql.Literal(7))
|
|
self.assertEqual(s.as_string(self.conn), "{1,7}")
|
|
|
|
def test_compose_badnargs(self):
|
|
self.assertRaises(IndexError, sql.SQL("select {0};").format)
|
|
|
|
@skip_before_python(2, 7)
|
|
def test_compose_badnargs_auto(self):
|
|
self.assertRaises(IndexError, sql.SQL("select {};").format)
|
|
self.assertRaises(ValueError, sql.SQL("select {} {1};").format, 10, 20)
|
|
self.assertRaises(ValueError, sql.SQL("select {0} {};").format, 10, 20)
|
|
|
|
def test_compose_bad_args_type(self):
|
|
self.assertRaises(IndexError, sql.SQL("select {0};").format, a=10)
|
|
self.assertRaises(KeyError, sql.SQL("select {x};").format, 10)
|
|
|
|
def test_must_be_composable(self):
|
|
self.assertRaises(TypeError, sql.SQL("select {0};").format, 'foo')
|
|
self.assertRaises(TypeError, sql.SQL("select {0};").format, 10)
|
|
|
|
def test_no_modifiers(self):
|
|
self.assertRaises(ValueError, sql.SQL("select {a!r};").format, a=10)
|
|
self.assertRaises(ValueError, sql.SQL("select {a:<};").format, a=10)
|
|
|
|
def test_must_be_adaptable(self):
|
|
class Foo(object):
|
|
pass
|
|
|
|
self.assertRaises(psycopg2.ProgrammingError,
|
|
sql.SQL("select {0};").format(sql.Literal(Foo())).as_string, self.conn)
|
|
|
|
def test_execute(self):
|
|
cur = self.conn.cursor()
|
|
cur.execute("""
|
|
create table test_compose (
|
|
id serial primary key,
|
|
foo text, bar text, "ba'z" text)
|
|
""")
|
|
cur.execute(
|
|
sql.SQL("insert into {0} (id, {1}) values (%s, {2})").format(
|
|
sql.Identifier('test_compose'),
|
|
sql.SQL(', ').join(map(sql.Identifier, ['foo', 'bar', "ba'z"])),
|
|
(sql.Placeholder() * 3).join(', ')),
|
|
(10, 'a', 'b', 'c'))
|
|
|
|
cur.execute("select * from test_compose")
|
|
self.assertEqual(cur.fetchall(), [(10, 'a', 'b', 'c')])
|
|
|
|
def test_executemany(self):
|
|
cur = self.conn.cursor()
|
|
cur.execute("""
|
|
create table test_compose (
|
|
id serial primary key,
|
|
foo text, bar text, "ba'z" text)
|
|
""")
|
|
cur.executemany(
|
|
sql.SQL("insert into {0} (id, {1}) values (%s, {2})").format(
|
|
sql.Identifier('test_compose'),
|
|
sql.SQL(', ').join(map(sql.Identifier, ['foo', 'bar', "ba'z"])),
|
|
(sql.Placeholder() * 3).join(', ')),
|
|
[(10, 'a', 'b', 'c'), (20, 'd', 'e', 'f')])
|
|
|
|
cur.execute("select * from test_compose")
|
|
self.assertEqual(cur.fetchall(),
|
|
[(10, 'a', 'b', 'c'), (20, 'd', 'e', 'f')])
|
|
|
|
@skip_copy_if_green
|
|
@skip_before_postgres(8, 2)
|
|
def test_copy(self):
|
|
cur = self.conn.cursor()
|
|
cur.execute("""
|
|
create table test_compose (
|
|
id serial primary key,
|
|
foo text, bar text, "ba'z" text)
|
|
""")
|
|
|
|
s = StringIO("10\ta\tb\tc\n20\td\te\tf\n")
|
|
cur.copy_expert(
|
|
sql.SQL("copy {t} (id, foo, bar, {f}) from stdin").format(
|
|
t=sql.Identifier("test_compose"), f=sql.Identifier("ba'z")), s)
|
|
|
|
s1 = StringIO()
|
|
cur.copy_expert(
|
|
sql.SQL("copy (select {f} from {t} order by id) to stdout").format(
|
|
t=sql.Identifier("test_compose"), f=sql.Identifier("ba'z")), s1)
|
|
s1.seek(0)
|
|
self.assertEqual(s1.read(), 'c\nf\n')
|
|
|
|
|
|
class IdentifierTests(ConnectingTestCase):
|
|
def test_class(self):
|
|
self.assert_(issubclass(sql.Identifier, sql.Composable))
|
|
|
|
def test_init(self):
|
|
self.assert_(isinstance(sql.Identifier('foo'), sql.Identifier))
|
|
self.assert_(isinstance(sql.Identifier(u'foo'), sql.Identifier))
|
|
self.assertRaises(TypeError, sql.Identifier, 10)
|
|
self.assertRaises(TypeError, sql.Identifier, dt.date(2016, 12, 31))
|
|
|
|
def test_string(self):
|
|
self.assertEqual(sql.Identifier('foo').string, 'foo')
|
|
|
|
def test_repr(self):
|
|
obj = sql.Identifier("fo'o")
|
|
self.assertEqual(repr(obj), 'Identifier("fo\'o")')
|
|
self.assertEqual(repr(obj), str(obj))
|
|
|
|
def test_eq(self):
|
|
self.assert_(sql.Identifier('foo') == sql.Identifier('foo'))
|
|
self.assert_(sql.Identifier('foo') != sql.Identifier('bar'))
|
|
self.assert_(sql.Identifier('foo') != 'foo')
|
|
self.assert_(sql.Identifier('foo') != sql.SQL('foo'))
|
|
|
|
def test_as_str(self):
|
|
self.assertEqual(sql.Identifier('foo').as_string(self.conn), '"foo"')
|
|
self.assertEqual(sql.Identifier("fo'o").as_string(self.conn), '"fo\'o"')
|
|
|
|
def test_join(self):
|
|
self.assert_(not hasattr(sql.Identifier('foo'), 'join'))
|
|
|
|
|
|
class LiteralTests(ConnectingTestCase):
|
|
def test_class(self):
|
|
self.assert_(issubclass(sql.Literal, sql.Composable))
|
|
|
|
def test_init(self):
|
|
self.assert_(isinstance(sql.Literal('foo'), sql.Literal))
|
|
self.assert_(isinstance(sql.Literal(u'foo'), sql.Literal))
|
|
self.assert_(isinstance(sql.Literal(b'foo'), sql.Literal))
|
|
self.assert_(isinstance(sql.Literal(42), sql.Literal))
|
|
self.assert_(isinstance(
|
|
sql.Literal(dt.date(2016, 12, 31)), sql.Literal))
|
|
|
|
def test_wrapped(self):
|
|
self.assertEqual(sql.Literal('foo').wrapped, 'foo')
|
|
|
|
def test_repr(self):
|
|
self.assertEqual(repr(sql.Literal("foo")), "Literal('foo')")
|
|
self.assertEqual(str(sql.Literal("foo")), "Literal('foo')")
|
|
self.assertQuotedEqual(sql.Literal("foo").as_string(self.conn), "'foo'")
|
|
self.assertEqual(sql.Literal(42).as_string(self.conn), "42")
|
|
self.assertEqual(
|
|
sql.Literal(dt.date(2017, 1, 1)).as_string(self.conn),
|
|
"'2017-01-01'::date")
|
|
|
|
def test_eq(self):
|
|
self.assert_(sql.Literal('foo') == sql.Literal('foo'))
|
|
self.assert_(sql.Literal('foo') != sql.Literal('bar'))
|
|
self.assert_(sql.Literal('foo') != 'foo')
|
|
self.assert_(sql.Literal('foo') != sql.SQL('foo'))
|
|
|
|
def test_must_be_adaptable(self):
|
|
class Foo(object):
|
|
pass
|
|
|
|
self.assertRaises(psycopg2.ProgrammingError,
|
|
sql.Literal(Foo()).as_string, self.conn)
|
|
|
|
|
|
class SQLTests(ConnectingTestCase):
|
|
def test_class(self):
|
|
self.assert_(issubclass(sql.SQL, sql.Composable))
|
|
|
|
def test_init(self):
|
|
self.assert_(isinstance(sql.SQL('foo'), sql.SQL))
|
|
self.assert_(isinstance(sql.SQL(u'foo'), sql.SQL))
|
|
self.assertRaises(TypeError, sql.SQL, 10)
|
|
self.assertRaises(TypeError, sql.SQL, dt.date(2016, 12, 31))
|
|
|
|
def test_string(self):
|
|
self.assertEqual(sql.SQL('foo').string, 'foo')
|
|
|
|
def test_repr(self):
|
|
self.assertEqual(repr(sql.SQL("foo")), "SQL('foo')")
|
|
self.assertEqual(str(sql.SQL("foo")), "SQL('foo')")
|
|
self.assertEqual(sql.SQL("foo").as_string(self.conn), "foo")
|
|
|
|
def test_eq(self):
|
|
self.assert_(sql.SQL('foo') == sql.SQL('foo'))
|
|
self.assert_(sql.SQL('foo') != sql.SQL('bar'))
|
|
self.assert_(sql.SQL('foo') != 'foo')
|
|
self.assert_(sql.SQL('foo') != sql.Literal('foo'))
|
|
|
|
def test_sum(self):
|
|
obj = sql.SQL("foo") + sql.SQL("bar")
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertEqual(obj.as_string(self.conn), "foobar")
|
|
|
|
def test_sum_inplace(self):
|
|
obj = sql.SQL("foo")
|
|
obj += sql.SQL("bar")
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertEqual(obj.as_string(self.conn), "foobar")
|
|
|
|
def test_multiply(self):
|
|
obj = sql.SQL("foo") * 3
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertEqual(obj.as_string(self.conn), "foofoofoo")
|
|
|
|
def test_join(self):
|
|
obj = sql.SQL(", ").join(
|
|
[sql.Identifier('foo'), sql.SQL('bar'), sql.Literal(42)])
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertEqual(obj.as_string(self.conn), '"foo", bar, 42')
|
|
|
|
obj = sql.SQL(", ").join(
|
|
sql.Composed([sql.Identifier('foo'), sql.SQL('bar'), sql.Literal(42)]))
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertEqual(obj.as_string(self.conn), '"foo", bar, 42')
|
|
|
|
obj = sql.SQL(", ").join([])
|
|
self.assertEqual(obj, sql.Composed([]))
|
|
|
|
|
|
class ComposedTest(ConnectingTestCase):
|
|
def test_class(self):
|
|
self.assert_(issubclass(sql.Composed, sql.Composable))
|
|
|
|
def test_repr(self):
|
|
obj = sql.Composed([sql.Literal("foo"), sql.Identifier("b'ar")])
|
|
self.assertEqual(repr(obj),
|
|
"""Composed([Literal('foo'), Identifier("b'ar")])""")
|
|
self.assertEqual(str(obj), repr(obj))
|
|
|
|
def test_seq(self):
|
|
l = [sql.SQL('foo'), sql.Literal('bar'), sql.Identifier('baz')]
|
|
self.assertEqual(sql.Composed(l).seq, l)
|
|
|
|
def test_eq(self):
|
|
l = [sql.Literal("foo"), sql.Identifier("b'ar")]
|
|
l2 = [sql.Literal("foo"), sql.Literal("b'ar")]
|
|
self.assert_(sql.Composed(l) == sql.Composed(list(l)))
|
|
self.assert_(sql.Composed(l) != l)
|
|
self.assert_(sql.Composed(l) != sql.Composed(l2))
|
|
|
|
def test_join(self):
|
|
obj = sql.Composed([sql.Literal("foo"), sql.Identifier("b'ar")])
|
|
obj = obj.join(", ")
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertQuotedEqual(obj.as_string(self.conn), "'foo', \"b'ar\"")
|
|
|
|
def test_sum(self):
|
|
obj = sql.Composed([sql.SQL("foo ")])
|
|
obj = obj + sql.Literal("bar")
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertQuotedEqual(obj.as_string(self.conn), "foo 'bar'")
|
|
|
|
def test_sum_inplace(self):
|
|
obj = sql.Composed([sql.SQL("foo ")])
|
|
obj += sql.Literal("bar")
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertQuotedEqual(obj.as_string(self.conn), "foo 'bar'")
|
|
|
|
obj = sql.Composed([sql.SQL("foo ")])
|
|
obj += sql.Composed([sql.Literal("bar")])
|
|
self.assert_(isinstance(obj, sql.Composed))
|
|
self.assertQuotedEqual(obj.as_string(self.conn), "foo 'bar'")
|
|
|
|
def test_iter(self):
|
|
obj = sql.Composed([sql.SQL("foo"), sql.SQL('bar')])
|
|
it = iter(obj)
|
|
i = it.next()
|
|
self.assertEqual(i, sql.SQL('foo'))
|
|
i = it.next()
|
|
self.assertEqual(i, sql.SQL('bar'))
|
|
self.assertRaises(StopIteration, it.next)
|
|
|
|
|
|
class PlaceholderTest(ConnectingTestCase):
|
|
def test_class(self):
|
|
self.assert_(issubclass(sql.Placeholder, sql.Composable))
|
|
|
|
def test_name(self):
|
|
self.assertEqual(sql.Placeholder().name, None)
|
|
self.assertEqual(sql.Placeholder('foo').name, 'foo')
|
|
|
|
def test_repr(self):
|
|
self.assert_(str(sql.Placeholder()), 'Placeholder()')
|
|
self.assert_(repr(sql.Placeholder()), 'Placeholder()')
|
|
self.assert_(sql.Placeholder().as_string(self.conn), '%s')
|
|
|
|
def test_repr_name(self):
|
|
self.assert_(str(sql.Placeholder('foo')), "Placeholder('foo')")
|
|
self.assert_(repr(sql.Placeholder('foo')), "Placeholder('foo')")
|
|
self.assert_(sql.Placeholder('foo').as_string(self.conn), '%(foo)s')
|
|
|
|
def test_bad_name(self):
|
|
self.assertRaises(ValueError, sql.Placeholder, ')')
|
|
|
|
def test_eq(self):
|
|
self.assert_(sql.Placeholder('foo') == sql.Placeholder('foo'))
|
|
self.assert_(sql.Placeholder('foo') != sql.Placeholder('bar'))
|
|
self.assert_(sql.Placeholder('foo') != 'foo')
|
|
self.assert_(sql.Placeholder() == sql.Placeholder())
|
|
self.assert_(sql.Placeholder('foo') != sql.Placeholder())
|
|
self.assert_(sql.Placeholder('foo') != sql.Literal('foo'))
|
|
|
|
|
|
class ValuesTest(ConnectingTestCase):
|
|
def test_null(self):
|
|
self.assert_(isinstance(sql.NULL, sql.SQL))
|
|
self.assertEqual(sql.NULL.as_string(self.conn), "NULL")
|
|
|
|
def test_default(self):
|
|
self.assert_(isinstance(sql.DEFAULT, sql.SQL))
|
|
self.assertEqual(sql.DEFAULT.as_string(self.conn), "DEFAULT")
|
|
|
|
|
|
def test_suite():
|
|
return unittest.TestLoader().loadTestsFromName(__name__)
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|