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from django.contrib import admin
from django.contrib.admin.decorators import register
from django.contrib.admin.sites import site
from django.core.exceptions import ImproperlyConfigured
from django.test import SimpleTestCase
from .models import Location, Person, Place, Traveler
class NameAdmin(admin.ModelAdmin):
list_display = ['name']
save_on_top = True
class CustomSite(admin.AdminSite):
pass
class TestRegistration(SimpleTestCase):
def setUp(self):
self.site = admin.AdminSite()
def test_bare_registration(self):
self.site.register(Person)
self.assertIsInstance(self.site._registry[Person], admin.ModelAdmin)
def test_registration_with_model_admin(self):
self.site.register(Person, NameAdmin)
self.assertIsInstance(self.site._registry[Person], NameAdmin)
def test_prevent_double_registration(self):
self.site.register(Person)
msg = 'The model Person is already registered'
with self.assertRaisesMessage(admin.sites.AlreadyRegistered, msg):
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, ['__str__'])
self.assertTrue(self.site._registry[Person].save_on_top)
def test_iterable_registration(self):
self.site.register([Person, Place], search_fields=['name'])
self.assertIsInstance(self.site._registry[Person], admin.ModelAdmin)
self.assertEqual(self.site._registry[Person].search_fields, ['name'])
self.assertIsInstance(self.site._registry[Place], admin.ModelAdmin)
self.assertEqual(self.site._registry[Place].search_fields, ['name'])
def test_abstract_model(self):
"""
Exception is raised when trying to register an abstract model.
Refs #12004.
"""
msg = 'The model Location is abstract, so it cannot be registered with admin.'
with self.assertRaisesMessage(ImproperlyConfigured, msg):
self.site.register(Location)
def test_is_registered_model(self):
"Checks for registered models should return true."
self.site.register(Person)
self.assertTrue(self.site.is_registered(Person))
def test_is_registered_not_registered_model(self):
"Checks for unregistered models should return false."
self.assertFalse(self.site.is_registered(Person))
class TestRegistrationDecorator(SimpleTestCase):
"""
Tests the register decorator in admin.decorators
For clarity:
@register(Person)
class AuthorAdmin(ModelAdmin):
pass
is functionally equal to (the way it is written in these tests):
AuthorAdmin = register(Person)(AuthorAdmin)
"""
def setUp(self):
self.default_site = site
self.custom_site = CustomSite()
def test_basic_registration(self):
register(Person)(NameAdmin)
self.assertIsInstance(self.default_site._registry[Person], admin.ModelAdmin)
self.default_site.unregister(Person)
def test_custom_site_registration(self):
register(Person, site=self.custom_site)(NameAdmin)
self.assertIsInstance(self.custom_site._registry[Person], admin.ModelAdmin)
def test_multiple_registration(self):
register(Traveler, Place)(NameAdmin)
self.assertIsInstance(self.default_site._registry[Traveler], admin.ModelAdmin)
self.default_site.unregister(Traveler)
self.assertIsInstance(self.default_site._registry[Place], admin.ModelAdmin)
self.default_site.unregister(Place)
def test_wrapped_class_not_a_model_admin(self):
with self.assertRaisesMessage(ValueError, 'Wrapped class must subclass ModelAdmin.'):
register(Person)(CustomSite)
def test_custom_site_not_an_admin_site(self):
with self.assertRaisesMessage(ValueError, 'site must subclass AdminSite'):
register(Person, site=Traveler)(NameAdmin)
def test_empty_models_list_registration_fails(self):
with self.assertRaisesMessage(ValueError, 'At least one model must be passed to register.'):
register()(NameAdmin)
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