mirror of
https://github.com/psycopg/psycopg2.git
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303 lines
10 KiB
Python
Executable File
303 lines
10 KiB
Python
Executable File
#!/usr/bin/env python
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# test_module.py - unit test for the module interface
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#
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# Copyright (C) 2011 Daniele Varrazzo <daniele.varrazzo@gmail.com>
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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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# In addition, as a special exception, the copyright holders give
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# permission to link this program with the OpenSSL library (or with
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# modified versions of OpenSSL that use the same license as OpenSSL),
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# and distribute linked combinations including the two.
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#
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# You must obey the GNU Lesser General Public License in all respects for
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# all of the code used other than OpenSSL.
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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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from testutils import unittest, skip_before_python, skip_before_postgres
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from testutils import ConnectingTestCase, skip_copy_if_green
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import psycopg2
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class ConnectTestCase(unittest.TestCase):
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def setUp(self):
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self.args = None
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def conect_stub(dsn, connection_factory=None, async=False):
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self.args = (dsn, connection_factory, async)
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self._connect_orig = psycopg2._connect
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psycopg2._connect = conect_stub
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def tearDown(self):
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psycopg2._connect = self._connect_orig
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def test_there_has_to_be_something(self):
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self.assertRaises(TypeError, psycopg2.connect)
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self.assertRaises(TypeError, psycopg2.connect,
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connection_factory=lambda dsn, async=False: None)
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self.assertRaises(TypeError, psycopg2.connect,
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async=True)
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def test_no_keywords(self):
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psycopg2.connect('')
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self.assertEqual(self.args[0], '')
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self.assertEqual(self.args[1], None)
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self.assertEqual(self.args[2], False)
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def test_dsn(self):
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psycopg2.connect('dbname=blah x=y')
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self.assertEqual(self.args[0], 'dbname=blah x=y')
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self.assertEqual(self.args[1], None)
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self.assertEqual(self.args[2], False)
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def test_supported_keywords(self):
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psycopg2.connect(database='foo')
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self.assertEqual(self.args[0], 'dbname=foo')
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psycopg2.connect(user='postgres')
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self.assertEqual(self.args[0], 'user=postgres')
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psycopg2.connect(password='secret')
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self.assertEqual(self.args[0], 'password=secret')
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psycopg2.connect(port=5432)
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self.assertEqual(self.args[0], 'port=5432')
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psycopg2.connect(sslmode='require')
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self.assertEqual(self.args[0], 'sslmode=require')
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psycopg2.connect(database='foo',
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user='postgres', password='secret', port=5432)
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self.assert_('dbname=foo' in self.args[0])
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self.assert_('user=postgres' in self.args[0])
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self.assert_('password=secret' in self.args[0])
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self.assert_('port=5432' in self.args[0])
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self.assertEqual(len(self.args[0].split()), 4)
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def test_generic_keywords(self):
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psycopg2.connect(foo='bar')
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self.assertEqual(self.args[0], 'foo=bar')
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def test_factory(self):
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def f(dsn, async=False):
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pass
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psycopg2.connect(database='foo', bar='baz', connection_factory=f)
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self.assertEqual(self.args[0], 'dbname=foo bar=baz')
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self.assertEqual(self.args[1], f)
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self.assertEqual(self.args[2], False)
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psycopg2.connect("dbname=foo bar=baz", connection_factory=f)
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self.assertEqual(self.args[0], 'dbname=foo bar=baz')
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self.assertEqual(self.args[1], f)
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self.assertEqual(self.args[2], False)
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def test_async(self):
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psycopg2.connect(database='foo', bar='baz', async=1)
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self.assertEqual(self.args[0], 'dbname=foo bar=baz')
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self.assertEqual(self.args[1], None)
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self.assert_(self.args[2])
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psycopg2.connect("dbname=foo bar=baz", async=True)
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self.assertEqual(self.args[0], 'dbname=foo bar=baz')
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self.assertEqual(self.args[1], None)
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self.assert_(self.args[2])
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def test_empty_param(self):
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psycopg2.connect(database='sony', password='')
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self.assertEqual(self.args[0], "dbname=sony password=''")
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def test_escape(self):
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psycopg2.connect(database='hello world')
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self.assertEqual(self.args[0], "dbname='hello world'")
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psycopg2.connect(database=r'back\slash')
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self.assertEqual(self.args[0], r"dbname=back\\slash")
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psycopg2.connect(database="quo'te")
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self.assertEqual(self.args[0], r"dbname=quo\'te")
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psycopg2.connect(database="with\ttab")
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self.assertEqual(self.args[0], "dbname='with\ttab'")
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psycopg2.connect(database=r"\every thing'")
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self.assertEqual(self.args[0], r"dbname='\\every thing\''")
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def test_no_kwargs_swallow(self):
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self.assertRaises(TypeError,
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psycopg2.connect, 'dbname=foo', database='foo')
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self.assertRaises(TypeError,
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psycopg2.connect, 'dbname=foo', user='postgres')
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self.assertRaises(TypeError,
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psycopg2.connect, 'dbname=foo', no_such_param='meh')
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class ExceptionsTestCase(ConnectingTestCase):
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def test_attributes(self):
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.pgcode, '42P01')
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self.assert_(e.pgerror)
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self.assert_(e.cursor is cur)
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def test_diagnostics_attributes(self):
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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diag = e.diag
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self.assert_(isinstance(diag, psycopg2.extensions.Diagnostics))
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for attr in [
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'column_name', 'constraint_name', 'context', 'datatype_name',
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'internal_position', 'internal_query', 'message_detail',
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'message_hint', 'message_primary', 'schema_name', 'severity',
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'source_file', 'source_function', 'source_line', 'sqlstate',
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'statement_position', 'table_name', ]:
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v = getattr(diag, attr)
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if v is not None:
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self.assert_(isinstance(v, str))
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def test_diagnostics_values(self):
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.diag.sqlstate, '42P01')
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self.assertEqual(e.diag.severity, 'ERROR')
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def test_diagnostics_life(self):
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import gc
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from weakref import ref
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def tmp():
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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return cur, exc
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cur, e = tmp()
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diag = e.diag
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w = ref(cur)
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del e, cur
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gc.collect()
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assert(w() is not None)
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self.assertEqual(diag.sqlstate, '42P01')
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del diag
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gc.collect(); gc.collect()
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assert(w() is None)
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@skip_copy_if_green
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def test_diagnostics_copy(self):
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from StringIO import StringIO
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f = StringIO()
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cur = self.conn.cursor()
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try:
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cur.copy_to(f, 'nonexist')
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except psycopg2.Error, exc:
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diag = exc.diag
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self.assertEqual(diag.sqlstate, '42P01')
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def test_diagnostics_independent(self):
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cur = self.conn.cursor()
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try:
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cur.execute("l'acqua e' poca e 'a papera nun galleggia")
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except Exception, exc:
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diag1 = exc.diag
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self.conn.rollback()
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try:
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cur.execute("select level from water where ducks > 1")
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except psycopg2.Error, exc:
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diag2 = exc.diag
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self.assertEqual(diag1.sqlstate, '42601')
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self.assertEqual(diag2.sqlstate, '42P01')
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def test_diagnostics_from_commit(self):
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cur = self.conn.cursor()
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cur.execute("""
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create temp table test_deferred (
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data int primary key,
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ref int references test_deferred (data)
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deferrable initially deferred)
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""")
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cur.execute("insert into test_deferred values (1,2)")
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try:
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self.conn.commit()
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.diag.sqlstate, '23503')
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@skip_before_postgres(9, 3)
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def test_9_3_diagnostics(self):
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cur = self.conn.cursor()
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cur.execute("""
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create temp table test_exc (
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data int constraint chk_eq1 check (data = 1)
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)""")
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try:
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cur.execute("insert into test_exc values(2)")
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except psycopg2.Error, exc:
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e = exc
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self.assertEqual(e.pgcode, '23514')
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self.assertEqual(e.diag.schema_name[:7], "pg_temp")
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self.assertEqual(e.diag.table_name, "test_exc")
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self.assertEqual(e.diag.column_name, None)
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self.assertEqual(e.diag.constraint_name, "chk_eq1")
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self.assertEqual(e.diag.datatype_name, None)
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@skip_before_python(2, 5)
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def test_pickle(self):
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import pickle
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cur = self.conn.cursor()
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try:
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cur.execute("select * from nonexist")
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except psycopg2.Error, exc:
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e = exc
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e1 = pickle.loads(pickle.dumps(e))
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self.assertEqual(e.pgerror, e1.pgerror)
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self.assertEqual(e.pgcode, e1.pgcode)
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self.assert_(e1.cursor is None)
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@skip_before_python(2, 5)
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def test_pickle_connection_error(self):
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# segfaults on psycopg 2.5.1 - see ticket #170
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import pickle
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try:
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psycopg2.connect('dbname=nosuchdatabasemate')
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except psycopg2.Error, exc:
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e = exc
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e1 = pickle.loads(pickle.dumps(e))
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self.assertEqual(e.pgerror, e1.pgerror)
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self.assertEqual(e.pgcode, e1.pgcode)
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self.assert_(e1.cursor is None)
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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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