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|
#!/usr/bin/python
# -*- coding: utf-8 -*-
from __future__ import print_function
try:
import unittest2 as unittest # for Python < 2.7
except ImportError:
import unittest
import sys
from functools import partial
from time import sleep
from threading import Thread
from pg import *
# We need a database to test against. If LOCAL_PyGreSQL.py exists we will
# get our information from that. Otherwise we use the defaults.
dbname = 'unittest'
dbhost = None
dbport = 5432
try:
from .LOCAL_PyGreSQL import *
except (ImportError, ValueError):
try:
from LOCAL_PyGreSQL import *
except ImportError:
pass
def opendb():
db = DB(dbname, dbhost, dbport)
db.query("SET DATESTYLE TO 'ISO'")
db.query("SET TIME ZONE 'EST5EDT'")
db.query("SET DEFAULT_WITH_OIDS=FALSE")
db.query("SET CLIENT_MIN_MESSAGES=WARNING")
db.query("SET STANDARD_CONFORMING_STRINGS=FALSE")
return db
db = opendb()
for q in (
"DROP TABLE _test1._test_schema",
"DROP TABLE _test2._test_schema",
"DROP SCHEMA _test1",
"DROP SCHEMA _test2",
):
try:
db.query(q)
except Exception:
pass
db.close()
class UtilityTest(unittest.TestCase):
def setUp(self):
"""Setup test tables or empty them if they already exist."""
db = opendb()
for t in ('_test1', '_test2'):
try:
db.query("CREATE SCHEMA " + t)
except Error:
pass
try:
db.query("CREATE TABLE %s._test_schema "
"(%s int PRIMARY KEY)" % (t, t))
except Error:
db.query("DELETE FROM %s._test_schema" % t)
try:
db.query("CREATE TABLE _test_schema "
"(_test int PRIMARY KEY, _i interval, dvar int DEFAULT 999)")
except Error:
db.query("DELETE FROM _test_schema")
try:
db.query("CREATE VIEW _test_vschema AS "
"SELECT _test, 'abc'::text AS _test2 FROM _test_schema")
except Error:
pass
def test_invalidname(self):
"""Make sure that invalid table names are caught"""
db = opendb()
self.assertRaises(NotSupportedError, db.get_attnames, 'x.y.z')
def test_schema(self):
"""Does it differentiate the same table name in different schemas"""
db = opendb()
# see if they differentiate the table names properly
self.assertEqual(
db.get_attnames('_test_schema'),
{'_test': 'int', '_i': 'date', 'dvar': 'int'}
)
self.assertEqual(
db.get_attnames('public._test_schema'),
{'_test': 'int', '_i': 'date', 'dvar': 'int'}
)
self.assertEqual(
db.get_attnames('_test1._test_schema'),
{'_test1': 'int'}
)
self.assertEqual(
db.get_attnames('_test2._test_schema'),
{'_test2': 'int'}
)
def test_pkey(self):
db = opendb()
self.assertEqual(db.pkey('_test_schema'), '_test')
self.assertEqual(db.pkey('public._test_schema'), '_test')
self.assertEqual(db.pkey('_test1._test_schema'), '_test1')
self.assertEqual(db.pkey('_test2._test_schema'), '_test2')
self.assertRaises(KeyError, db.pkey, '_test_vschema')
def test_get(self):
db = opendb()
db.query("INSERT INTO _test_schema VALUES (1234)")
db.get('_test_schema', 1234)
db.get('_test_schema', 1234, keyname='_test')
self.assertRaises(ProgrammingError, db.get, '_test_vschema', 1234)
db.get('_test_vschema', 1234, keyname='_test')
def test_params(self):
db = opendb()
db.query("INSERT INTO _test_schema VALUES ($1, $2, $3)", 12, None, 34)
d = db.get('_test_schema', 12)
self.assertEqual(d['dvar'], 34)
def test_insert(self):
db = opendb()
d = dict(_test=1234)
db.insert('_test_schema', d)
self.assertEqual(d['dvar'], 999)
db.insert('_test_schema', _test=1235)
self.assertEqual(d['dvar'], 999)
def test_context_manager(self):
db = opendb()
t = '_test_schema'
d = dict(_test=1235)
with db:
db.insert(t, d)
d['_test'] += 1
db.insert(t, d)
try:
with db:
d['_test'] += 1
db.insert(t, d)
db.insert(t, d)
except IntegrityError:
pass
with db:
d['_test'] += 1
db.insert(t, d)
d['_test'] += 1
db.insert(t, d)
self.assertTrue(db.get(t, 1235))
self.assertTrue(db.get(t, 1236))
self.assertRaises(DatabaseError, db.get, t, 1237)
self.assertTrue(db.get(t, 1238))
self.assertTrue(db.get(t, 1239))
def test_sqlstate(self):
db = opendb()
db.query("INSERT INTO _test_schema VALUES (1234)")
try:
db.query("INSERT INTO _test_schema VALUES (1234)")
except DatabaseError as error:
self.assertTrue(isinstance(error, IntegrityError))
# the SQLSTATE error code for unique violation is 23505
self.assertEqual(error.sqlstate, '23505')
def test_mixed_case(self):
db = opendb()
try:
db.query('CREATE TABLE _test_mc ("_Test" int PRIMARY KEY)')
except Error:
db.query("DELETE FROM _test_mc")
d = dict(_Test=1234)
db.insert('_test_mc', d)
def test_update(self):
db = opendb()
db.query("INSERT INTO _test_schema VALUES (1234)")
r = db.get('_test_schema', 1234)
r['dvar'] = 123
db.update('_test_schema', r)
r = db.get('_test_schema', 1234)
self.assertEqual(r['dvar'], 123)
r = db.get('_test_schema', 1234)
self.assertIn('dvar', r)
db.update('_test_schema', _test=1234, dvar=456)
r = db.get('_test_schema', 1234)
self.assertEqual(r['dvar'], 456)
r = db.get('_test_schema', 1234)
db.update('_test_schema', r, dvar=456)
r = db.get('_test_schema', 1234)
self.assertEqual(r['dvar'], 456)
def notify_callback(self, arg_dict):
if arg_dict:
arg_dict['called'] = True
else:
self.notify_timeout = True
def test_notify(self, options=None):
if not options:
options = {}
run_as_method = options.get('run_as_method')
call_notify = options.get('call_notify')
two_payloads = options.get('two_payloads')
db = opendb()
# Get function under test, can be standalone or DB method.
fut = db.notification_handler if run_as_method else partial(
NotificationHandler, db)
arg_dict = dict(event=None, called=False)
self.notify_timeout = False
# Listen for 'event_1'.
target = fut('event_1', self.notify_callback, arg_dict, 5)
thread = Thread(None, target)
thread.start()
try:
# Wait until the thread has started.
for n in range(500):
if target.listening:
break
sleep(0.01)
self.assertTrue(target.listening)
self.assertTrue(thread.is_alive())
# Open another connection for sending notifications.
db2 = opendb()
# Generate notification from the other connection.
if two_payloads:
db2.begin()
if call_notify:
if two_payloads:
target.notify(db2, payload='payload 0')
target.notify(db2, payload='payload 1')
else:
if two_payloads:
db2.query("notify event_1, 'payload 0'")
db2.query("notify event_1, 'payload 1'")
if two_payloads:
db2.commit()
# Wait until the notification has been caught.
for n in range(500):
if arg_dict['called'] or self.notify_timeout:
break
sleep(0.01)
# Check that callback has been invoked.
self.assertTrue(arg_dict['called'])
self.assertEqual(arg_dict['event'], 'event_1')
self.assertEqual(arg_dict['extra'], 'payload 1')
self.assertTrue(isinstance(arg_dict['pid'], int))
self.assertFalse(self.notify_timeout)
arg_dict['called'] = False
self.assertTrue(thread.is_alive())
# Generate stop notification.
if call_notify:
target.notify(db2, stop=True, payload='payload 2')
else:
db2.query("notify stop_event_1, 'payload 2'")
db2.close()
# Wait until the notification has been caught.
for n in range(500):
if arg_dict['called'] or self.notify_timeout:
break
sleep(0.01)
# Check that callback has been invoked.
self.assertTrue(arg_dict['called'])
self.assertEqual(arg_dict['event'], 'stop_event_1')
self.assertEqual(arg_dict['extra'], 'payload 2')
self.assertTrue(isinstance(arg_dict['pid'], int))
self.assertFalse(self.notify_timeout)
thread.join(5)
self.assertFalse(thread.is_alive())
self.assertFalse(target.listening)
target.close()
except Exception:
target.close()
if thread.is_alive():
thread.join(5)
def test_notify_other_options(self):
for run_as_method in False, True:
for call_notify in False, True:
for two_payloads in False, True:
options = dict(
run_as_method=run_as_method,
call_notify=call_notify,
two_payloads=two_payloads)
if any(options.values()):
self.test_notify(options)
def test_notify_timeout(self):
for run_as_method in False, True:
db = opendb()
# Get function under test, can be standalone or DB method.
fut = db.notification_handler if run_as_method else partial(
NotificationHandler, db)
arg_dict = dict(event=None, called=False)
self.notify_timeout = False
# Listen for 'event_1' with timeout of 10ms.
target = fut('event_1', self.notify_callback, arg_dict, 0.01)
thread = Thread(None, target)
thread.start()
# Sleep 20ms, long enough to time out.
sleep(0.02)
# Verify that we've indeed timed out.
self.assertFalse(arg_dict.get('called'))
self.assertTrue(self.notify_timeout)
self.assertFalse(thread.is_alive())
self.assertFalse(target.listening)
target.close()
if __name__ == '__main__':
if len(sys.argv) == 2 and sys.argv[1] == '-l':
print('\n'.join(unittest.getTestCaseNames(UtilityTest, 'test_')))
sys.exit(0)
test_list = [name for name in sys.argv[1:] if not name.startswith('-')]
if not test_list:
test_list = unittest.getTestCaseNames(UtilityTest, 'test_')
suite = unittest.TestSuite()
for test_name in test_list:
try:
suite.addTest(UtilityTest(test_name))
except Exception:
print("\n ERROR: %s.\n" % sys.exc_value)
sys.exit(1)
verbosity = '-v' in sys.argv[1:] and 2 or 1
failfast = '-l' in sys.argv[1:]
runner = unittest.TextTestRunner(verbosity=verbosity, failfast=failfast)
rc = runner.run(suite)
sys.exit(1 if rc.errors or rc.failures else 0)
|
