mirror of https://github.com/django/django.git
80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
from django.db.models import signals
|
|
from django.test import TestCase
|
|
from django.core import management
|
|
from django.utils import six
|
|
|
|
from . import models
|
|
|
|
|
|
PRE_SYNCDB_ARGS = ['app', 'create_models', 'verbosity', 'interactive', 'db']
|
|
SYNCDB_DATABASE = 'default'
|
|
SYNCDB_VERBOSITY = 1
|
|
SYNCDB_INTERACTIVE = False
|
|
|
|
|
|
class PreSyncdbReceiver(object):
|
|
def __init__(self):
|
|
self.call_counter = 0
|
|
self.call_args = None
|
|
|
|
def __call__(self, signal, sender, **kwargs):
|
|
self.call_counter = self.call_counter + 1
|
|
self.call_args = kwargs
|
|
|
|
|
|
class OneTimeReceiver(object):
|
|
"""
|
|
Special receiver for handle the fact that test runner calls syncdb for
|
|
several databases and several times for some of them.
|
|
"""
|
|
|
|
def __init__(self):
|
|
self.call_counter = 0
|
|
self.call_args = None
|
|
|
|
def __call__(self, signal, sender, **kwargs):
|
|
# Although test runner calls syncdb for several databases,
|
|
# testing for only one of them is quite sufficient.
|
|
if kwargs['db'] == SYNCDB_DATABASE:
|
|
self.call_counter = self.call_counter + 1
|
|
self.call_args = kwargs
|
|
# we need to test only one call of syncdb
|
|
signals.pre_syncdb.disconnect(pre_syncdb_receiver, sender=models)
|
|
|
|
|
|
# We connect receiver here and not in unit test code because we need to
|
|
# connect receiver before test runner creates database. That is, sequence of
|
|
# actions would be:
|
|
#
|
|
# 1. Test runner imports this module.
|
|
# 2. We connect receiver.
|
|
# 3. Test runner calls syncdb for create default database.
|
|
# 4. Test runner execute our unit test code.
|
|
pre_syncdb_receiver = OneTimeReceiver()
|
|
signals.pre_syncdb.connect(pre_syncdb_receiver, sender=models)
|
|
|
|
|
|
class SyncdbSignalTests(TestCase):
|
|
|
|
available_apps = [
|
|
'syncdb_signals',
|
|
]
|
|
|
|
def test_pre_syncdb_call_time(self):
|
|
self.assertEqual(pre_syncdb_receiver.call_counter, 1)
|
|
|
|
def test_pre_syncdb_args(self):
|
|
r = PreSyncdbReceiver()
|
|
signals.pre_syncdb.connect(r, sender=models)
|
|
management.call_command('syncdb', database=SYNCDB_DATABASE,
|
|
verbosity=SYNCDB_VERBOSITY, interactive=SYNCDB_INTERACTIVE,
|
|
load_initial_data=False, stdout=six.StringIO())
|
|
|
|
args = r.call_args
|
|
self.assertEqual(r.call_counter, 1)
|
|
self.assertEqual(set(args), set(PRE_SYNCDB_ARGS))
|
|
self.assertEqual(args['app'], models)
|
|
self.assertEqual(args['verbosity'], SYNCDB_VERBOSITY)
|
|
self.assertEqual(args['interactive'], SYNCDB_INTERACTIVE)
|
|
self.assertEqual(args['db'], 'default')
|