"""

Tests for Django's bundled context processors.

"""

from django.conf import settings

from django.contrib.auth import authenticate

from django.db.models import Q

from django.test import TestCase

from django.template import Template

class RequestContextProcessorTests(TestCase):

    """

    Tests for the ``django.core.context_processors.request`` processor.

    """

    urls = 'regressiontests.context_processors.urls'

    def test_request_attributes(self):

        """

        Test that the request object is available in the template and that its

        attributes can't be overridden by GET and POST parameters (#3828).

        """

        url = '/request_attrs/'

        # We should have the request object in the template.

        response = self.client.get(url)

        self.assertContains(response, 'Have request')

        # Test is_secure.

        response = self.client.get(url)

        self.assertContains(response, 'Not secure')

        response = self.client.get(url, {'is_secure': 'blah'})

        self.assertContains(response, 'Not secure')

        response = self.client.post(url, {'is_secure': 'blah'})

        self.assertContains(response, 'Not secure')

        # Test path.

        response = self.client.get(url)

        self.assertContains(response, url)

        response = self.client.get(url, {'path': '/blah/'})

        self.assertContains(response, url)

        response = self.client.post(url, {'path': '/blah/'})

        self.assertContains(response, url)

class AuthContextProcessorTests(TestCase):

    """

    Tests for the ``django.contrib.auth.context_processors.auth`` processor

    """

    urls = 'regressiontests.context_processors.urls'

    fixtures = ['context-processors-users.xml']

    def test_session_not_accessed(self):

        """

        Tests that the session is not accessed simply by including

        the auth context processor

        """

        response = self.client.get('/auth_processor_no_attr_access/')

        self.assertContains(response, "Session not accessed")

    def test_session_is_accessed(self):

        """

        Tests that the session is accessed if the auth context processor

        is used and relevant attributes accessed.

        """

        response = self.client.get('/auth_processor_attr_access/')

        self.assertContains(response, "Session accessed")

    def test_perms_attrs(self):

        self.client.login(username='super', password='secret')

        response = self.client.get('/auth_processor_perms/')

        self.assertContains(response, "Has auth permissions")

    def test_message_attrs(self):

        self.client.login(username='super', password='secret')

        response = self.client.get('/auth_processor_messages/')

        self.assertContains(response, "Message 1")

    def test_user_attrs(self):

        """

        Test that the lazy objects returned behave just like the wrapped objects.

        """

        # These are 'functional' level tests for common use cases.  Direct

        # testing of the implementation (SimpleLazyObject) is in the 'utils'

        # tests.

        self.client.login(username='super', password='secret')

        user = authenticate(username='super', password='secret')

        response = self.client.get('/auth_processor_user/')

        self.assertContains(response, "unicode: super")

        self.assertContains(response, "id: 100")

        self.assertContains(response, "username: super")

        # bug #12037 is tested by the {% url %} in the template:

        self.assertContains(response, "url: /userpage/super/")

        # See if this object can be used for queries where a Q() comparing

        # a user can be used with another Q() (in an AND or OR fashion).

        # This simulates what a template tag might do with the user from the

        # context. Note that we don't need to execute a query, just build it.

        #

        # The failure case (bug #12049) on Python 2.4 with a LazyObject-wrapped

        # User is a fatal TypeError: "function() takes at least 2 arguments

        # (0 given)" deep inside deepcopy().

        #

        # Python 2.5 and 2.6 succeeded, but logged internally caught exception

        # spew:

        #

        #    Exception RuntimeError: 'maximum recursion depth exceeded while

        #    calling a Python object' in <type 'exceptions.AttributeError'>

        #    ignored"

        query = Q(user=response.context['user']) & Q(someflag=True)

        # Tests for user equality.  This is hard because User defines

        # equality in a non-duck-typing way

        # See bug #12060

        self.assertEqual(response.context['user'], user)

        self.assertEqual(user, response.context['user'])