from django.test import TestCase

from django.contrib import admin

from models import Person, Place

class NameAdmin(admin.ModelAdmin):

    list_display = ['name']

    save_on_top = True

class TestRegistration(TestCase):

    def setUp(self):

        self.site = admin.AdminSite()

    def test_bare_registration(self):

        self.site.register(Person)

        self.assertTrue(

            isinstance(self.site._registry[Person], admin.options.ModelAdmin)

        )

    def test_registration_with_model_admin(self):

        self.site.register(Person, NameAdmin)

        self.assertTrue(

            isinstance(self.site._registry[Person], NameAdmin)

        )

    def test_prevent_double_registration(self):

        self.site.register(Person)

        self.assertRaises(admin.sites.AlreadyRegistered,

                          self.site.register,

                          Person)

    def test_registration_with_star_star_options(self):

        self.site.register(Person, search_fields=['name'])

        self.assertEqual(self.site._registry[Person].search_fields, ['name'])

    def test_star_star_overrides(self):

        self.site.register(Person, NameAdmin,

                           search_fields=["name"], list_display=['__str__'])

        self.assertEqual(self.site._registry[Person].search_fields, ['name'])

        self.assertEqual(self.site._registry[Person].list_display,

                         ['action_checkbox', '__str__'])

        self.assertTrue(self.site._registry[Person].save_on_top)

    def test_iterable_registration(self):

        self.site.register([Person, Place], search_fields=['name'])

        self.assertTrue(

            isinstance(self.site._registry[Person], admin.options.ModelAdmin)

        )

        self.assertEqual(self.site._registry[Person].search_fields, ['name'])

        self.assertTrue(

            isinstance(self.site._registry[Place], admin.options.ModelAdmin)

        )

        self.assertEqual(self.site._registry[Place].search_fields, ['name'])