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django/tests/auth_tests/test_signals.py

115 lines
4.7 KiB
Python

from django.apps import apps
from django.contrib.auth import authenticate, signals
from django.contrib.auth.models import User
from django.core.exceptions import FieldDoesNotExist
from django.test import TestCase, override_settings
from django.test.client import RequestFactory
from .models import MinimalUser, UserWithDisabledLastLoginField
@override_settings(ROOT_URLCONF='auth_tests.urls')
class SignalTestCase(TestCase):
@classmethod
def setUpTestData(cls):
cls.u1 = User.objects.create_user(username='testclient', password='password')
cls.u3 = User.objects.create_user(username='staff', password='password')
def listener_login(self, user, **kwargs):
self.logged_in.append(user)
def listener_logout(self, user, **kwargs):
self.logged_out.append(user)
def listener_login_failed(self, sender, **kwargs):
self.login_failed.append(kwargs)
def setUp(self):
"""Set up the listeners and reset the logged in/logged out counters"""
self.logged_in = []
self.logged_out = []
self.login_failed = []
signals.user_logged_in.connect(self.listener_login)
signals.user_logged_out.connect(self.listener_logout)
signals.user_login_failed.connect(self.listener_login_failed)
def tearDown(self):
"""Disconnect the listeners"""
signals.user_logged_in.disconnect(self.listener_login)
signals.user_logged_out.disconnect(self.listener_logout)
signals.user_login_failed.disconnect(self.listener_login_failed)
def test_login(self):
# Only a successful login will trigger the success signal.
self.client.login(username='testclient', password='bad')
self.assertEqual(len(self.logged_in), 0)
self.assertEqual(len(self.login_failed), 1)
self.assertEqual(self.login_failed[0]['credentials']['username'], 'testclient')
# verify the password is cleansed
self.assertIn('***', self.login_failed[0]['credentials']['password'])
self.assertIn('request', self.login_failed[0])
# Like this:
self.client.login(username='testclient', password='password')
self.assertEqual(len(self.logged_in), 1)
self.assertEqual(self.logged_in[0].username, 'testclient')
# Ensure there were no more failures.
self.assertEqual(len(self.login_failed), 1)
def test_logout_anonymous(self):
# The log_out function will still trigger the signal for anonymous
# users.
self.client.get('/logout/next_page/')
self.assertEqual(len(self.logged_out), 1)
self.assertIsNone(self.logged_out[0])
def test_logout(self):
self.client.login(username='testclient', password='password')
self.client.get('/logout/next_page/')
self.assertEqual(len(self.logged_out), 1)
self.assertEqual(self.logged_out[0].username, 'testclient')
def test_update_last_login(self):
"""Only `last_login` is updated in `update_last_login`"""
user = self.u3
old_last_login = user.last_login
user.username = "This username shouldn't get saved"
request = RequestFactory().get('/login')
signals.user_logged_in.send(sender=user.__class__, request=request, user=user)
user = User.objects.get(pk=user.pk)
self.assertEqual(user.username, 'staff')
self.assertNotEqual(user.last_login, old_last_login)
def test_failed_login_without_request(self):
authenticate(username='testclient', password='bad')
self.assertIsNone(self.login_failed[0]['request'])
def test_login_with_custom_user_without_last_login_field(self):
"""
The user_logged_in signal is only registered if the user model has a
last_login field.
"""
last_login_receivers = signals.user_logged_in.receivers
try:
signals.user_logged_in.receivers = []
with self.assertRaises(FieldDoesNotExist):
MinimalUser._meta.get_field('last_login')
with self.settings(AUTH_USER_MODEL='auth_tests.MinimalUser'):
apps.get_app_config('auth').ready()
self.assertEqual(signals.user_logged_in.receivers, [])
# last_login is a property whose value is None.
self.assertIsNone(UserWithDisabledLastLoginField().last_login)
with self.settings(AUTH_USER_MODEL='auth_tests.UserWithDisabledLastLoginField'):
apps.get_app_config('auth').ready()
self.assertEqual(signals.user_logged_in.receivers, [])
with self.settings(AUTH_USER_MODEL='auth.User'):
apps.get_app_config('auth').ready()
self.assertEqual(len(signals.user_logged_in.receivers), 1)
finally:
signals.user_logged_in.receivers = last_login_receivers