from __future__ import unicode_literals

import warnings

from django.contrib.admin import ModelAdmin, TabularInline
from django.contrib.admin.helpers import InlineAdminForm
from django.contrib.admin.tests import AdminSeleniumWebDriverTestCase
from django.contrib.auth.models import Permission, User
from django.contrib.contenttypes.models import ContentType
from django.core.urlresolvers import reverse
from django.test import RequestFactory, TestCase, override_settings
from django.utils.encoding import force_text

from .admin import InnerInline, site as admin_site
from .models import (
    Author, BinaryTree, Book, Chapter, Child, ChildModel1, ChildModel2,
    Fashionista, FootNote, Holder, Holder2, Holder3, Holder4, Inner, Inner2,
    Inner3, Inner4Stacked, Inner4Tabular, Novel, OutfitItem, Parent,
    ParentModelWithCustomPk, Person, Poll, Profile, ProfileCollection,
    Question, Sighting, SomeChildModel, SomeParentModel, Teacher,
)

INLINE_CHANGELINK_HTML = 'class="inlinechangelink">Change</a>'


@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
                   ROOT_URLCONF="admin_inlines.urls")
class TestInline(TestCase):
    fixtures = ['admin-views-users.xml']

    def setUp(self):
        holder = Holder(dummy=13)
        holder.save()
        Inner(dummy=42, holder=holder).save()

        result = self.client.login(username='super', password='secret')
        self.assertEqual(result, True)
        self.factory = RequestFactory()

    def test_can_delete(self):
        """
        can_delete should be passed to inlineformset factory.
        """
        holder = Holder.objects.get(dummy=13)
        response = self.client.get(
            reverse('admin:admin_inlines_holder_change', args=(holder.id,))
        )
        inner_formset = response.context['inline_admin_formsets'][0].formset
        expected = InnerInline.can_delete
        actual = inner_formset.can_delete
        self.assertEqual(expected, actual, 'can_delete must be equal')

    def test_readonly_stacked_inline_label(self):
        """Bug #13174."""
        holder = Holder.objects.create(dummy=42)
        Inner.objects.create(holder=holder, dummy=42, readonly='')
        response = self.client.get(
            reverse('admin:admin_inlines_holder_change', args=(holder.id,))
        )
        self.assertContains(response, '<label>Inner readonly label:</label>')

    def test_many_to_many_inlines(self):
        "Autogenerated many-to-many inlines are displayed correctly (#13407)"
        response = self.client.get(reverse('admin:admin_inlines_author_add'))
        # The heading for the m2m inline block uses the right text
        self.assertContains(response, '<h2>Author-book relationships</h2>')
        # The "add another" label is correct
        self.assertContains(response, 'Add another Author-book relationship')
        # The '+' is dropped from the autogenerated form prefix (Author_books+)
        self.assertContains(response, 'id="id_Author_books-TOTAL_FORMS"')

    def test_inline_primary(self):
        person = Person.objects.create(firstname='Imelda')
        item = OutfitItem.objects.create(name='Shoes')
        # Imelda likes shoes, but can't carry her own bags.
        data = {
            'shoppingweakness_set-TOTAL_FORMS': 1,
            'shoppingweakness_set-INITIAL_FORMS': 0,
            'shoppingweakness_set-MAX_NUM_FORMS': 0,
            '_save': 'Save',
            'person': person.id,
            'max_weight': 0,
            'shoppingweakness_set-0-item': item.id,
        }
        response = self.client.post(reverse('admin:admin_inlines_fashionista_add'), data)
        self.assertEqual(response.status_code, 302)
        self.assertEqual(len(Fashionista.objects.filter(person__firstname='Imelda')), 1)

    def test_tabular_non_field_errors(self):
        """
        Ensure that non_field_errors are displayed correctly, including the
        right value for colspan. Refs #13510.
        """
        data = {
            'title_set-TOTAL_FORMS': 1,
            'title_set-INITIAL_FORMS': 0,
            'title_set-MAX_NUM_FORMS': 0,
            '_save': 'Save',
            'title_set-0-title1': 'a title',
            'title_set-0-title2': 'a different title',
        }
        response = self.client.post(reverse('admin:admin_inlines_titlecollection_add'), data)
        # Here colspan is "4": two fields (title1 and title2), one hidden field and the delete checkbox.
        self.assertContains(response, '<tr><td colspan="4"><ul class="errorlist nonfield"><li>The two titles must be the same</li></ul></td></tr>')

    def test_no_parent_callable_lookup(self):
        """Admin inline `readonly_field` shouldn't invoke parent ModelAdmin callable"""
        # Identically named callable isn't present in the parent ModelAdmin,
        # rendering of the add view shouldn't explode
        response = self.client.get(reverse('admin:admin_inlines_novel_add'))
        self.assertEqual(response.status_code, 200)
        # View should have the child inlines section
        self.assertContains(response, '<div class="inline-group" id="chapter_set-group">')

    def test_callable_lookup(self):
        """Admin inline should invoke local callable when its name is listed in readonly_fields"""
        response = self.client.get(reverse('admin:admin_inlines_poll_add'))
        self.assertEqual(response.status_code, 200)
        # Add parent object view should have the child inlines section
        self.assertContains(response, '<div class="inline-group" id="question_set-group">')
        # The right callable should be used for the inline readonly_fields
        # column cells
        self.assertContains(response, '<p>Callable in QuestionInline</p>')

    def test_help_text(self):
        """
        Ensure that the inlines' model field help texts are displayed when
        using both the stacked and tabular layouts.
        Ref #8190.
        """
        response = self.client.get(reverse('admin:admin_inlines_holder4_add'))
        self.assertContains(response, '<p class="help">Awesome stacked help text is awesome.</p>', 4)
        self.assertContains(response, '<img src="/static/admin/img/icon-unknown.gif" class="help help-tooltip" width="10" height="10" alt="(Awesome tabular help text is awesome.)" title="Awesome tabular help text is awesome." />', 1)
        # ReadOnly fields
        response = self.client.get(reverse('admin:admin_inlines_capofamiglia_add'))
        self.assertContains(response, '<img src="/static/admin/img/icon-unknown.gif" class="help help-tooltip" width="10" height="10" alt="(Help text for ReadOnlyInline)" title="Help text for ReadOnlyInline" />', 1)

    def test_inline_hidden_field_no_column(self):
        """#18263 -- Make sure hidden fields don't get a column in tabular inlines"""
        parent = SomeParentModel.objects.create(name='a')
        SomeChildModel.objects.create(name='b', position='0', parent=parent)
        SomeChildModel.objects.create(name='c', position='1', parent=parent)
        response = self.client.get(reverse('admin:admin_inlines_someparentmodel_change', args=(parent.pk,)))
        self.assertNotContains(response, '<td class="field-position">')
        self.assertContains(response, (
            '<input id="id_somechildmodel_set-1-position" '
            'name="somechildmodel_set-1-position" type="hidden" value="1" />'))

    def test_non_related_name_inline(self):
        """
        Ensure that multiple inlines with related_name='+' have correct form
        prefixes. Bug #16838.
        """
        response = self.client.get(reverse('admin:admin_inlines_capofamiglia_add'))

        self.assertContains(response,
                '<input type="hidden" name="-1-0-id" id="id_-1-0-id" />', html=True)
        self.assertContains(response,
                '<input type="hidden" name="-1-0-capo_famiglia" id="id_-1-0-capo_famiglia" />', html=True)
        self.assertContains(response,
                '<input id="id_-1-0-name" type="text" class="vTextField" '
                'name="-1-0-name" maxlength="100" />', html=True)

        self.assertContains(response,
                '<input type="hidden" name="-2-0-id" id="id_-2-0-id" />', html=True)
        self.assertContains(response,
                '<input type="hidden" name="-2-0-capo_famiglia" id="id_-2-0-capo_famiglia" />', html=True)
        self.assertContains(response,
                '<input id="id_-2-0-name" type="text" class="vTextField" '
                'name="-2-0-name" maxlength="100" />', html=True)

    @override_settings(USE_L10N=True, USE_THOUSAND_SEPARATOR=True)
    def test_localize_pk_shortcut(self):
        """
        Ensure that the "View on Site" link is correct for locales that use
        thousand separators
        """
        holder = Holder.objects.create(pk=123456789, dummy=42)
        inner = Inner.objects.create(pk=987654321, holder=holder, dummy=42, readonly='')
        response = self.client.get(reverse('admin:admin_inlines_holder_change', args=(holder.id,)))
        inner_shortcut = 'r/%s/%s/' % (ContentType.objects.get_for_model(inner).pk, inner.pk)
        self.assertContains(response, inner_shortcut)

    def test_custom_pk_shortcut(self):
        """
        Ensure that the "View on Site" link is correct for models with a
        custom primary key field. Bug #18433.
        """
        parent = ParentModelWithCustomPk.objects.create(my_own_pk="foo", name="Foo")
        child1 = ChildModel1.objects.create(my_own_pk="bar", name="Bar", parent=parent)
        child2 = ChildModel2.objects.create(my_own_pk="baz", name="Baz", parent=parent)
        response = self.client.get(reverse('admin:admin_inlines_parentmodelwithcustompk_change', args=('foo',)))
        child1_shortcut = 'r/%s/%s/' % (ContentType.objects.get_for_model(child1).pk, child1.pk)
        child2_shortcut = 'r/%s/%s/' % (ContentType.objects.get_for_model(child2).pk, child2.pk)
        self.assertContains(response, child1_shortcut)
        self.assertContains(response, child2_shortcut)

    def test_create_inlines_on_inherited_model(self):
        """
        Ensure that an object can be created with inlines when it inherits
        another class. Bug #19524.
        """
        data = {
            'name': 'Martian',
            'sighting_set-TOTAL_FORMS': 1,
            'sighting_set-INITIAL_FORMS': 0,
            'sighting_set-MAX_NUM_FORMS': 0,
            'sighting_set-0-place': 'Zone 51',
            '_save': 'Save',
        }
        response = self.client.post(reverse('admin:admin_inlines_extraterrestrial_add'), data)
        self.assertEqual(response.status_code, 302)
        self.assertEqual(Sighting.objects.filter(et__name='Martian').count(), 1)

    def test_custom_get_extra_form(self):
        bt_head = BinaryTree.objects.create(name="Tree Head")
        BinaryTree.objects.create(name="First Child", parent=bt_head)

        # The maximum number of forms should respect 'get_max_num' on the
        # ModelAdmin
        max_forms_input = '<input id="id_binarytree_set-MAX_NUM_FORMS" name="binarytree_set-MAX_NUM_FORMS" type="hidden" value="%d" />'
        # The total number of forms will remain the same in either case
        total_forms_hidden = '<input id="id_binarytree_set-TOTAL_FORMS" name="binarytree_set-TOTAL_FORMS" type="hidden" value="2" />'

        response = self.client.get(reverse('admin:admin_inlines_binarytree_add'))
        self.assertContains(response, max_forms_input % 3)
        self.assertContains(response, total_forms_hidden)

        response = self.client.get(reverse('admin:admin_inlines_binarytree_change', args=(bt_head.id,)))
        self.assertContains(response, max_forms_input % 2)
        self.assertContains(response, total_forms_hidden)

    def test_min_num(self):
        """
        Ensure that min_num and extra determine number of forms.
        """
        class MinNumInline(TabularInline):
            model = BinaryTree
            min_num = 2
            extra = 3

        modeladmin = ModelAdmin(BinaryTree, admin_site)
        modeladmin.inlines = [MinNumInline]

        min_forms = '<input id="id_binarytree_set-MIN_NUM_FORMS" name="binarytree_set-MIN_NUM_FORMS" type="hidden" value="2" />'
        total_forms = '<input id="id_binarytree_set-TOTAL_FORMS" name="binarytree_set-TOTAL_FORMS" type="hidden" value="5" />'

        request = self.factory.get(reverse('admin:admin_inlines_binarytree_add'))
        request.user = User(username='super', is_superuser=True)
        response = modeladmin.changeform_view(request)
        self.assertContains(response, min_forms)
        self.assertContains(response, total_forms)

    def test_custom_min_num(self):
        """
        Ensure that get_min_num is called and used correctly.
        """
        bt_head = BinaryTree.objects.create(name="Tree Head")
        BinaryTree.objects.create(name="First Child", parent=bt_head)

        class MinNumInline(TabularInline):
            model = BinaryTree
            extra = 3

            def get_min_num(self, request, obj=None, **kwargs):
                if obj:
                    return 5
                return 2

        modeladmin = ModelAdmin(BinaryTree, admin_site)
        modeladmin.inlines = [MinNumInline]

        min_forms = '<input id="id_binarytree_set-MIN_NUM_FORMS" name="binarytree_set-MIN_NUM_FORMS" type="hidden" value="%d" />'
        total_forms = '<input id="id_binarytree_set-TOTAL_FORMS" name="binarytree_set-TOTAL_FORMS" type="hidden" value="%d" />'

        request = self.factory.get(reverse('admin:admin_inlines_binarytree_add'))
        request.user = User(username='super', is_superuser=True)
        response = modeladmin.changeform_view(request)
        self.assertContains(response, min_forms % 2)
        self.assertContains(response, total_forms % 5)

        request = self.factory.get(reverse('admin:admin_inlines_binarytree_change', args=(bt_head.id,)))
        request.user = User(username='super', is_superuser=True)
        response = modeladmin.changeform_view(request, object_id=str(bt_head.id))
        self.assertContains(response, min_forms % 5)
        self.assertContains(response, total_forms % 8)

    def test_inline_nonauto_noneditable_pk(self):
        response = self.client.get(reverse('admin:admin_inlines_author_add'))
        self.assertContains(response,
            '<input id="id_nonautopkbook_set-0-rand_pk" name="nonautopkbook_set-0-rand_pk" type="hidden" />',
             html=True)
        self.assertContains(response,
            '<input id="id_nonautopkbook_set-2-0-rand_pk" name="nonautopkbook_set-2-0-rand_pk" type="hidden" />',
             html=True)

    def test_inline_editable_pk(self):
        response = self.client.get(reverse('admin:admin_inlines_author_add'))
        self.assertContains(response,
            '<input class="vIntegerField" id="id_editablepkbook_set-0-manual_pk" name="editablepkbook_set-0-manual_pk" type="text" />',
             html=True, count=1)
        self.assertContains(response,
            '<input class="vIntegerField" id="id_editablepkbook_set-2-0-manual_pk" name="editablepkbook_set-2-0-manual_pk" type="text" />',
             html=True, count=1)

    def test_stacked_inline_edit_form_contains_has_original_class(self):
        holder = Holder.objects.create(dummy=1)
        holder.inner_set.create(dummy=1)
        response = self.client.get(reverse('admin:admin_inlines_holder_change', args=(holder.pk,)))
        self.assertContains(
            response,
            '<div class="inline-related has_original" id="inner_set-0">',
            count=1
        )
        self.assertContains(
            response,
            '<div class="inline-related" id="inner_set-1">',
            count=1
        )

    def test_inlines_show_change_link_registered(self):
        "Inlines `show_change_link` for registered models when enabled."
        holder = Holder4.objects.create(dummy=1)
        item1 = Inner4Stacked.objects.create(dummy=1, holder=holder)
        item2 = Inner4Tabular.objects.create(dummy=1, holder=holder)
        items = (
            ('inner4stacked', item1.pk),
            ('inner4tabular', item2.pk),
        )
        response = self.client.get(reverse('admin:admin_inlines_holder4_change', args=(holder.pk,)))
        self.assertTrue(response.context['inline_admin_formset'].opts.has_registered_model)
        for model, pk in items:
            url = reverse('admin:admin_inlines_%s_change' % model, args=(pk,))
            self.assertContains(response, '<a href="%s" %s' % (url, INLINE_CHANGELINK_HTML))

    def test_inlines_show_change_link_unregistered(self):
        "Inlines `show_change_link` disabled for unregistered models."
        parent = ParentModelWithCustomPk.objects.create(my_own_pk="foo", name="Foo")
        ChildModel1.objects.create(my_own_pk="bar", name="Bar", parent=parent)
        ChildModel2.objects.create(my_own_pk="baz", name="Baz", parent=parent)
        response = self.client.get(reverse('admin:admin_inlines_parentmodelwithcustompk_change', args=('foo',)))
        self.assertFalse(response.context['inline_admin_formset'].opts.has_registered_model)
        self.assertNotContains(response, INLINE_CHANGELINK_HTML)

    def test_tabular_inline_show_change_link_false_registered(self):
        "Inlines `show_change_link` disabled by default."
        poll = Poll.objects.create(name="New poll")
        Question.objects.create(poll=poll)
        response = self.client.get(reverse('admin:admin_inlines_poll_change', args=(poll.pk,)))
        self.assertTrue(response.context['inline_admin_formset'].opts.has_registered_model)
        self.assertNotContains(response, INLINE_CHANGELINK_HTML)


@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
                   ROOT_URLCONF="admin_inlines.urls")
class TestInlineMedia(TestCase):
    fixtures = ['admin-views-users.xml']

    def setUp(self):

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

    def test_inline_media_only_base(self):
        holder = Holder(dummy=13)
        holder.save()
        Inner(dummy=42, holder=holder).save()
        change_url = reverse('admin:admin_inlines_holder_change', args=(holder.id,))
        response = self.client.get(change_url)
        self.assertContains(response, 'my_awesome_admin_scripts.js')

    def test_inline_media_only_inline(self):
        holder = Holder3(dummy=13)
        holder.save()
        Inner3(dummy=42, holder=holder).save()
        change_url = reverse('admin:admin_inlines_holder3_change', args=(holder.id,))
        response = self.client.get(change_url)
        self.assertContains(response, 'my_awesome_inline_scripts.js')

    def test_all_inline_media(self):
        holder = Holder2(dummy=13)
        holder.save()
        Inner2(dummy=42, holder=holder).save()
        change_url = reverse('admin:admin_inlines_holder2_change', args=(holder.id,))
        response = self.client.get(change_url)
        self.assertContains(response, 'my_awesome_admin_scripts.js')
        self.assertContains(response, 'my_awesome_inline_scripts.js')


@override_settings(ROOT_URLCONF="admin_inlines.urls")
class TestInlineAdminForm(TestCase):

    def test_immutable_content_type(self):
        """Regression for #9362
        The problem depends only on InlineAdminForm and its "original"
        argument, so we can safely set the other arguments to None/{}. We just
        need to check that the content_type argument of Child isn't altered by
        the internals of the inline form."""

        sally = Teacher.objects.create(name='Sally')
        john = Parent.objects.create(name='John')
        joe = Child.objects.create(name='Joe', teacher=sally, parent=john)

        iaf = InlineAdminForm(None, None, {}, {}, joe)
        parent_ct = ContentType.objects.get_for_model(Parent)
        self.assertEqual(iaf.original.content_type, parent_ct)

    def test_original_content_type_id_deprecated(self):
        """
        #23444 -- Verify a warning is raised when accessing
        `original_content_type_id` attribute of `InlineAdminForm` object.
        """
        iaf = InlineAdminForm(None, None, {}, {}, None)
        poll = Poll.objects.create(name="poll")
        iaf2 = InlineAdminForm(None, None, {}, {}, poll)
        poll_ct = ContentType.objects.get_for_model(Poll)
        with warnings.catch_warnings(record=True) as recorded:
            warnings.filterwarnings('always')
            with self.assertRaises(AttributeError):
                iaf.original_content_type_id
            msg = force_text(recorded.pop().message)
            self.assertEqual(
                msg,
                'InlineAdminForm.original_content_type_id is deprecated and will be '
                'removed in Django 1.10. If you were using this attribute to construct '
                'the "view on site" URL, use the `absolute_url` attribute instead.'
            )
            self.assertEqual(iaf2.original_content_type_id, poll_ct.id)


@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
    ROOT_URLCONF="admin_inlines.urls")
class TestInlineProtectedOnDelete(TestCase):
    fixtures = ['admin-views-users.xml']

    def setUp(self):
        result = self.client.login(username='super', password='secret')
        self.assertEqual(result, True)

    def test_deleting_inline_with_protected_delete_does_not_validate(self):
        lotr = Novel.objects.create(name='Lord of the rings')
        chapter = Chapter.objects.create(novel=lotr, name='Many Meetings')
        foot_note = FootNote.objects.create(chapter=chapter, note='yadda yadda')

        change_url = reverse('admin:admin_inlines_novel_change', args=(lotr.id,))
        response = self.client.get(change_url)
        data = {
            'name': lotr.name,
            'chapter_set-TOTAL_FORMS': 1,
            'chapter_set-INITIAL_FORMS': 1,
            'chapter_set-MAX_NUM_FORMS': 1000,
            '_save': 'Save',
            'chapter_set-0-id': chapter.id,
            'chapter_set-0-name': chapter.name,
            'chapter_set-0-novel': lotr.id,
            'chapter_set-0-DELETE': 'on'
        }
        response = self.client.post(change_url, data)
        self.assertEqual(response.status_code, 200)
        self.assertContains(response, "Deleting chapter %s would require deleting "
                            "the following protected related objects: foot note %s"
                            % (chapter, foot_note))


@override_settings(ROOT_URLCONF="admin_inlines.urls")
class TestInlinePermissions(TestCase):
    """
    Make sure the admin respects permissions for objects that are edited
    inline. Refs #8060.

    """

    def setUp(self):
        self.user = User(username='admin')
        self.user.is_staff = True
        self.user.is_active = True
        self.user.set_password('secret')
        self.user.save()

        self.author_ct = ContentType.objects.get_for_model(Author)
        self.holder_ct = ContentType.objects.get_for_model(Holder2)
        self.book_ct = ContentType.objects.get_for_model(Book)
        self.inner_ct = ContentType.objects.get_for_model(Inner2)

        # User always has permissions to add and change Authors, and Holders,
        # the main (parent) models of the inlines. Permissions on the inlines
        # vary per test.
        permission = Permission.objects.get(codename='add_author', content_type=self.author_ct)
        self.user.user_permissions.add(permission)
        permission = Permission.objects.get(codename='change_author', content_type=self.author_ct)
        self.user.user_permissions.add(permission)
        permission = Permission.objects.get(codename='add_holder2', content_type=self.holder_ct)
        self.user.user_permissions.add(permission)
        permission = Permission.objects.get(codename='change_holder2', content_type=self.holder_ct)
        self.user.user_permissions.add(permission)

        author = Author.objects.create(pk=1, name='The Author')
        book = author.books.create(name='The inline Book')
        self.author_change_url = reverse('admin:admin_inlines_author_change', args=(author.id,))
        # Get the ID of the automatically created intermediate model for the Author-Book m2m
        author_book_auto_m2m_intermediate = Author.books.through.objects.get(author=author, book=book)
        self.author_book_auto_m2m_intermediate_id = author_book_auto_m2m_intermediate.pk

        holder = Holder2.objects.create(dummy=13)
        inner2 = Inner2.objects.create(dummy=42, holder=holder)
        self.holder_change_url = reverse('admin:admin_inlines_holder2_change', args=(holder.id,))
        self.inner2_id = inner2.id

        self.assertEqual(
            self.client.login(username='admin', password='secret'),
            True)

    def test_inline_add_m2m_noperm(self):
        response = self.client.get(reverse('admin:admin_inlines_author_add'))
        # No change permission on books, so no inline
        self.assertNotContains(response, '<h2>Author-book relationships</h2>')
        self.assertNotContains(response, 'Add another Author-Book Relationship')
        self.assertNotContains(response, 'id="id_Author_books-TOTAL_FORMS"')

    def test_inline_add_fk_noperm(self):
        response = self.client.get(reverse('admin:admin_inlines_holder2_add'))
        # No permissions on Inner2s, so no inline
        self.assertNotContains(response, '<h2>Inner2s</h2>')
        self.assertNotContains(response, 'Add another Inner2')
        self.assertNotContains(response, 'id="id_inner2_set-TOTAL_FORMS"')

    def test_inline_change_m2m_noperm(self):
        response = self.client.get(self.author_change_url)
        # No change permission on books, so no inline
        self.assertNotContains(response, '<h2>Author-book relationships</h2>')
        self.assertNotContains(response, 'Add another Author-Book Relationship')
        self.assertNotContains(response, 'id="id_Author_books-TOTAL_FORMS"')

    def test_inline_change_fk_noperm(self):
        response = self.client.get(self.holder_change_url)
        # No permissions on Inner2s, so no inline
        self.assertNotContains(response, '<h2>Inner2s</h2>')
        self.assertNotContains(response, 'Add another Inner2')
        self.assertNotContains(response, 'id="id_inner2_set-TOTAL_FORMS"')

    def test_inline_add_m2m_add_perm(self):
        permission = Permission.objects.get(codename='add_book', content_type=self.book_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(reverse('admin:admin_inlines_author_add'))
        # No change permission on Books, so no inline
        self.assertNotContains(response, '<h2>Author-book relationships</h2>')
        self.assertNotContains(response, 'Add another Author-Book Relationship')
        self.assertNotContains(response, 'id="id_Author_books-TOTAL_FORMS"')

    def test_inline_add_fk_add_perm(self):
        permission = Permission.objects.get(codename='add_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(reverse('admin:admin_inlines_holder2_add'))
        # Add permission on inner2s, so we get the inline
        self.assertContains(response, '<h2>Inner2s</h2>')
        self.assertContains(response, 'Add another Inner2')
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-TOTAL_FORMS" '
                            'value="3" name="inner2_set-TOTAL_FORMS" />', html=True)

    def test_inline_change_m2m_add_perm(self):
        permission = Permission.objects.get(codename='add_book', content_type=self.book_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(self.author_change_url)
        # No change permission on books, so no inline
        self.assertNotContains(response, '<h2>Author-book relationships</h2>')
        self.assertNotContains(response, 'Add another Author-Book Relationship')
        self.assertNotContains(response, 'id="id_Author_books-TOTAL_FORMS"')
        self.assertNotContains(response, 'id="id_Author_books-0-DELETE"')

    def test_inline_change_m2m_change_perm(self):
        permission = Permission.objects.get(codename='change_book', content_type=self.book_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(self.author_change_url)
        # We have change perm on books, so we can add/change/delete inlines
        self.assertContains(response, '<h2>Author-book relationships</h2>')
        self.assertContains(response, 'Add another Author-book relationship')
        self.assertContains(response, '<input type="hidden" id="id_Author_books-TOTAL_FORMS" '
                            'value="4" name="Author_books-TOTAL_FORMS" />', html=True)
        self.assertContains(response, '<input type="hidden" id="id_Author_books-0-id" '
                            'value="%i" name="Author_books-0-id" />' % self.author_book_auto_m2m_intermediate_id, html=True)
        self.assertContains(response, 'id="id_Author_books-0-DELETE"')

    def test_inline_change_fk_add_perm(self):
        permission = Permission.objects.get(codename='add_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(self.holder_change_url)
        # Add permission on inner2s, so we can add but not modify existing
        self.assertContains(response, '<h2>Inner2s</h2>')
        self.assertContains(response, 'Add another Inner2')
        # 3 extra forms only, not the existing instance form
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-TOTAL_FORMS" '
            'value="3" name="inner2_set-TOTAL_FORMS" />', html=True)
        self.assertNotContains(response, '<input type="hidden" id="id_inner2_set-0-id" '
            'value="%i" name="inner2_set-0-id" />' % self.inner2_id, html=True)

    def test_inline_change_fk_change_perm(self):
        permission = Permission.objects.get(codename='change_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(self.holder_change_url)
        # Change permission on inner2s, so we can change existing but not add new
        self.assertContains(response, '<h2>Inner2s</h2>')
        # Just the one form for existing instances
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-TOTAL_FORMS" '
            'value="1" name="inner2_set-TOTAL_FORMS" />', html=True)
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-0-id" '
            'value="%i" name="inner2_set-0-id" />' % self.inner2_id, html=True)
        # max-num 0 means we can't add new ones
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-MAX_NUM_FORMS" '
            'value="0" name="inner2_set-MAX_NUM_FORMS" />', html=True)

    def test_inline_change_fk_add_change_perm(self):
        permission = Permission.objects.get(codename='add_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        permission = Permission.objects.get(codename='change_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(self.holder_change_url)
        # Add/change perm, so we can add new and change existing
        self.assertContains(response, '<h2>Inner2s</h2>')
        # One form for existing instance and three extra for new
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-TOTAL_FORMS" '
            'value="4" name="inner2_set-TOTAL_FORMS" />', html=True)
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-0-id" '
            'value="%i" name="inner2_set-0-id" />' % self.inner2_id, html=True)

    def test_inline_change_fk_change_del_perm(self):
        permission = Permission.objects.get(codename='change_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        permission = Permission.objects.get(codename='delete_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(self.holder_change_url)
        # Change/delete perm on inner2s, so we can change/delete existing
        self.assertContains(response, '<h2>Inner2s</h2>')
        # One form for existing instance only, no new
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-TOTAL_FORMS" '
            'value="1" name="inner2_set-TOTAL_FORMS" />', html=True)
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-0-id" '
            'value="%i" name="inner2_set-0-id" />' % self.inner2_id, html=True)
        self.assertContains(response, 'id="id_inner2_set-0-DELETE"')

    def test_inline_change_fk_all_perms(self):
        permission = Permission.objects.get(codename='add_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        permission = Permission.objects.get(codename='change_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        permission = Permission.objects.get(codename='delete_inner2', content_type=self.inner_ct)
        self.user.user_permissions.add(permission)
        response = self.client.get(self.holder_change_url)
        # All perms on inner2s, so we can add/change/delete
        self.assertContains(response, '<h2>Inner2s</h2>')
        # One form for existing instance only, three for new
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-TOTAL_FORMS" '
            'value="4" name="inner2_set-TOTAL_FORMS" />', html=True)
        self.assertContains(response, '<input type="hidden" id="id_inner2_set-0-id" '
            'value="%i" name="inner2_set-0-id" />' % self.inner2_id, html=True)
        self.assertContains(response, 'id="id_inner2_set-0-DELETE"')


@override_settings(PASSWORD_HASHERS=('django.contrib.auth.hashers.SHA1PasswordHasher',),
                   ROOT_URLCONF="admin_inlines.urls")
class SeleniumFirefoxTests(AdminSeleniumWebDriverTestCase):

    available_apps = ['admin_inlines'] + AdminSeleniumWebDriverTestCase.available_apps
    fixtures = ['admin-views-users.xml']
    webdriver_class = 'selenium.webdriver.firefox.webdriver.WebDriver'

    def test_add_stackeds(self):
        """
        Ensure that the "Add another XXX" link correctly adds items to the
        stacked formset.
        """
        self.admin_login(username='super', password='secret')
        self.selenium.get('%s%s' % (self.live_server_url,
            reverse('admin:admin_inlines_holder4_add')))

        inline_id = '#inner4stacked_set-group'
        rows_length = lambda: len(self.selenium.find_elements_by_css_selector(
            '%s .dynamic-inner4stacked_set' % inline_id))
        self.assertEqual(rows_length(), 3)

        add_button = self.selenium.find_element_by_link_text(
            'Add another Inner4 stacked')
        add_button.click()

        self.assertEqual(rows_length(), 4)

    def test_delete_stackeds(self):
        self.admin_login(username='super', password='secret')
        self.selenium.get('%s%s' % (self.live_server_url,
            reverse('admin:admin_inlines_holder4_add')))

        inline_id = '#inner4stacked_set-group'
        rows_length = lambda: len(self.selenium.find_elements_by_css_selector(
            '%s .dynamic-inner4stacked_set' % inline_id))
        self.assertEqual(rows_length(), 3)

        add_button = self.selenium.find_element_by_link_text(
            'Add another Inner4 stacked')
        add_button.click()
        add_button.click()

        self.assertEqual(rows_length(), 5, msg="sanity check")
        for delete_link in self.selenium.find_elements_by_css_selector(
                '%s .inline-deletelink' % inline_id):
            delete_link.click()
        self.assertEqual(rows_length(), 3)

    def test_add_inlines(self):
        """
        Ensure that the "Add another XXX" link correctly adds items to the
        inline form.
        """
        self.admin_login(username='super', password='secret')
        self.selenium.get('%s%s' % (self.live_server_url,
            reverse('admin:admin_inlines_profilecollection_add')))

        # Check that there's only one inline to start with and that it has the
        # correct ID.
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set')), 1)
        self.assertEqual(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set')[0].get_attribute('id'),
            'profile_set-0')
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set#profile_set-0 input[name=profile_set-0-first_name]')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set#profile_set-0 input[name=profile_set-0-last_name]')), 1)

        # Add an inline
        self.selenium.find_element_by_link_text('Add another Profile').click()

        # Check that the inline has been added, that it has the right id, and
        # that it contains the right fields.
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set')), 2)
        self.assertEqual(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set')[1].get_attribute('id'), 'profile_set-1')
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set#profile_set-1 input[name=profile_set-1-first_name]')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set#profile_set-1 input[name=profile_set-1-last_name]')), 1)

        # Let's add another one to be sure
        self.selenium.find_element_by_link_text('Add another Profile').click()
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set')), 3)
        self.assertEqual(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set')[2].get_attribute('id'), 'profile_set-2')
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set#profile_set-2 input[name=profile_set-2-first_name]')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '.dynamic-profile_set#profile_set-2 input[name=profile_set-2-last_name]')), 1)

        # Enter some data and click 'Save'
        self.selenium.find_element_by_name('profile_set-0-first_name').send_keys('0 first name 1')
        self.selenium.find_element_by_name('profile_set-0-last_name').send_keys('0 last name 2')
        self.selenium.find_element_by_name('profile_set-1-first_name').send_keys('1 first name 1')
        self.selenium.find_element_by_name('profile_set-1-last_name').send_keys('1 last name 2')
        self.selenium.find_element_by_name('profile_set-2-first_name').send_keys('2 first name 1')
        self.selenium.find_element_by_name('profile_set-2-last_name').send_keys('2 last name 2')

        self.selenium.find_element_by_xpath('//input[@value="Save"]').click()
        self.wait_page_loaded()

        # Check that the objects have been created in the database
        self.assertEqual(ProfileCollection.objects.all().count(), 1)
        self.assertEqual(Profile.objects.all().count(), 3)

    def test_delete_inlines(self):
        self.admin_login(username='super', password='secret')
        self.selenium.get('%s%s' % (self.live_server_url,
            reverse('admin:admin_inlines_profilecollection_add')))

        # Add a few inlines
        self.selenium.find_element_by_link_text('Add another Profile').click()
        self.selenium.find_element_by_link_text('Add another Profile').click()
        self.selenium.find_element_by_link_text('Add another Profile').click()
        self.selenium.find_element_by_link_text('Add another Profile').click()
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '#profile_set-group table tr.dynamic-profile_set')), 5)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-0')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-1')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-2')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-3')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-4')), 1)

        # Click on a few delete buttons
        self.selenium.find_element_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-1 td.delete a').click()
        self.selenium.find_element_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-2 td.delete a').click()
        # Verify that they're gone and that the IDs have been re-sequenced
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            '#profile_set-group table tr.dynamic-profile_set')), 3)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-0')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-1')), 1)
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            'form#profilecollection_form tr.dynamic-profile_set#profile_set-2')), 1)

    def test_alternating_rows(self):
        self.admin_login(username='super', password='secret')
        self.selenium.get('%s%s' % (self.live_server_url,
            reverse('admin:admin_inlines_profilecollection_add')))

        # Add a few inlines
        self.selenium.find_element_by_link_text('Add another Profile').click()
        self.selenium.find_element_by_link_text('Add another Profile').click()

        row_selector = 'form#profilecollection_form tr.dynamic-profile_set'
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            "%s.row1" % row_selector)), 2, msg="Expect two row1 styled rows")
        self.assertEqual(len(self.selenium.find_elements_by_css_selector(
            "%s.row2" % row_selector)), 1, msg="Expect one row2 styled row")


class SeleniumChromeTests(SeleniumFirefoxTests):
    webdriver_class = 'selenium.webdriver.chrome.webdriver.WebDriver'


class SeleniumIETests(SeleniumFirefoxTests):
    webdriver_class = 'selenium.webdriver.ie.webdriver.WebDriver'
