mirror of
https://github.com/psycopg/psycopg2.git
synced 2024-11-14 04:56:33 +03:00
d90ad8627d
Allows removing many duplicate imports and better follows PEP8 guidelines: https://www.python.org/dev/peps/pep-0008/#imports > Imports are always put at the top of the file, just after any module > comments and docstrings, and before module globals and constants.
224 lines
7.2 KiB
Python
Executable File
224 lines
7.2 KiB
Python
Executable File
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
# test_async_keyword.py - test for objects using 'async' as attribute/param
|
|
#
|
|
# Copyright (C) 2017-2019 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 time
|
|
from select import select
|
|
|
|
import psycopg2
|
|
from psycopg2 import extras
|
|
|
|
from .testconfig import dsn
|
|
import unittest
|
|
from .testutils import ConnectingTestCase, skip_before_postgres, slow
|
|
|
|
from .test_replication import ReplicationTestCase, skip_repl_if_green
|
|
from psycopg2.extras import LogicalReplicationConnection, StopReplication
|
|
|
|
|
|
class AsyncTests(ConnectingTestCase):
|
|
def setUp(self):
|
|
ConnectingTestCase.setUp(self)
|
|
|
|
self.sync_conn = self.conn
|
|
self.conn = self.connect(async=True)
|
|
|
|
self.wait(self.conn)
|
|
|
|
curs = self.conn.cursor()
|
|
curs.execute('''
|
|
CREATE TEMPORARY TABLE table1 (
|
|
id int PRIMARY KEY
|
|
)''')
|
|
self.wait(curs)
|
|
|
|
def test_connection_setup(self):
|
|
cur = self.conn.cursor()
|
|
sync_cur = self.sync_conn.cursor()
|
|
del cur, sync_cur
|
|
|
|
self.assert_(self.conn.async)
|
|
self.assert_(not self.sync_conn.async)
|
|
|
|
# the async connection should be autocommit
|
|
self.assert_(self.conn.autocommit)
|
|
|
|
# check other properties to be found on the connection
|
|
self.assert_(self.conn.server_version)
|
|
self.assert_(self.conn.protocol_version in (2, 3))
|
|
self.assert_(self.conn.encoding in psycopg2.extensions.encodings)
|
|
|
|
def test_async_subclass(self):
|
|
class MyConn(psycopg2.extensions.connection):
|
|
def __init__(self, dsn, async=0):
|
|
psycopg2.extensions.connection.__init__(self, dsn, async=async)
|
|
|
|
conn = self.connect(connection_factory=MyConn, async=True)
|
|
self.assert_(isinstance(conn, MyConn))
|
|
self.assert_(conn.async)
|
|
conn.close()
|
|
|
|
def test_async_connection_error_message(self):
|
|
try:
|
|
cnn = psycopg2.connect('dbname=thisdatabasedoesntexist', async=True)
|
|
self.wait(cnn)
|
|
except psycopg2.Error as e:
|
|
self.assertNotEqual(str(e), "asynchronous connection failed",
|
|
"connection error reason lost")
|
|
else:
|
|
self.fail("no exception raised")
|
|
|
|
|
|
class CancelTests(ConnectingTestCase):
|
|
def setUp(self):
|
|
ConnectingTestCase.setUp(self)
|
|
|
|
cur = self.conn.cursor()
|
|
cur.execute('''
|
|
CREATE TEMPORARY TABLE table1 (
|
|
id int PRIMARY KEY
|
|
)''')
|
|
self.conn.commit()
|
|
|
|
@slow
|
|
@skip_before_postgres(8, 2)
|
|
def test_async_cancel(self):
|
|
async_conn = psycopg2.connect(dsn, async=True)
|
|
self.assertRaises(psycopg2.OperationalError, async_conn.cancel)
|
|
extras.wait_select(async_conn)
|
|
cur = async_conn.cursor()
|
|
cur.execute("select pg_sleep(10)")
|
|
time.sleep(1)
|
|
self.assertTrue(async_conn.isexecuting())
|
|
async_conn.cancel()
|
|
self.assertRaises(psycopg2.extensions.QueryCanceledError,
|
|
extras.wait_select, async_conn)
|
|
cur.execute("select 1")
|
|
extras.wait_select(async_conn)
|
|
self.assertEqual(cur.fetchall(), [(1, )])
|
|
|
|
def test_async_connection_cancel(self):
|
|
async_conn = psycopg2.connect(dsn, async=True)
|
|
async_conn.close()
|
|
self.assertTrue(async_conn.closed)
|
|
|
|
|
|
class ConnectTestCase(unittest.TestCase):
|
|
def setUp(self):
|
|
self.args = None
|
|
|
|
def connect_stub(dsn, connection_factory=None, async=False):
|
|
self.args = (dsn, connection_factory, async)
|
|
|
|
self._connect_orig = psycopg2._connect
|
|
psycopg2._connect = connect_stub
|
|
|
|
def tearDown(self):
|
|
psycopg2._connect = self._connect_orig
|
|
|
|
def test_there_has_to_be_something(self):
|
|
self.assertRaises(TypeError, psycopg2.connect)
|
|
self.assertRaises(TypeError, psycopg2.connect,
|
|
connection_factory=lambda dsn, async=False: None)
|
|
self.assertRaises(TypeError, psycopg2.connect,
|
|
async=True)
|
|
|
|
def test_factory(self):
|
|
def f(dsn, async=False):
|
|
pass
|
|
|
|
psycopg2.connect(database='foo', host='baz', connection_factory=f)
|
|
self.assertDsnEqual(self.args[0], 'dbname=foo host=baz')
|
|
self.assertEqual(self.args[1], f)
|
|
self.assertEqual(self.args[2], False)
|
|
|
|
psycopg2.connect("dbname=foo host=baz", connection_factory=f)
|
|
self.assertDsnEqual(self.args[0], 'dbname=foo host=baz')
|
|
self.assertEqual(self.args[1], f)
|
|
self.assertEqual(self.args[2], False)
|
|
|
|
def test_async(self):
|
|
psycopg2.connect(database='foo', host='baz', async=1)
|
|
self.assertDsnEqual(self.args[0], 'dbname=foo host=baz')
|
|
self.assertEqual(self.args[1], None)
|
|
self.assert_(self.args[2])
|
|
|
|
psycopg2.connect("dbname=foo host=baz", async=True)
|
|
self.assertDsnEqual(self.args[0], 'dbname=foo host=baz')
|
|
self.assertEqual(self.args[1], None)
|
|
self.assert_(self.args[2])
|
|
|
|
|
|
class AsyncReplicationTest(ReplicationTestCase):
|
|
@skip_before_postgres(9, 4) # slots require 9.4
|
|
@skip_repl_if_green
|
|
def test_async_replication(self):
|
|
conn = self.repl_connect(
|
|
connection_factory=LogicalReplicationConnection, async=1)
|
|
if conn is None:
|
|
return
|
|
|
|
cur = conn.cursor()
|
|
|
|
self.create_replication_slot(cur, output_plugin='test_decoding')
|
|
self.wait(cur)
|
|
|
|
cur.start_replication(self.slot)
|
|
self.wait(cur)
|
|
|
|
self.make_replication_events()
|
|
|
|
self.msg_count = 0
|
|
|
|
def consume(msg):
|
|
# just check the methods
|
|
"%s: %s" % (cur.io_timestamp, repr(msg))
|
|
|
|
self.msg_count += 1
|
|
if self.msg_count > 3:
|
|
cur.send_feedback(reply=True)
|
|
raise StopReplication()
|
|
|
|
cur.send_feedback(flush_lsn=msg.data_start)
|
|
|
|
# cannot be used in asynchronous mode
|
|
self.assertRaises(psycopg2.ProgrammingError, cur.consume_stream, consume)
|
|
|
|
def process_stream():
|
|
while True:
|
|
msg = cur.read_message()
|
|
if msg:
|
|
consume(msg)
|
|
else:
|
|
select([cur], [], [])
|
|
self.assertRaises(StopReplication, process_stream)
|
|
|
|
|
|
def test_suite():
|
|
return unittest.TestLoader().loadTestsFromName(__name__)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|