218 lines
6.6 KiB
Python
218 lines
6.6 KiB
Python
from datetime import datetime
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import unittest
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from django.db import models
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from django.utils.formats import localize
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from django.test import TestCase
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from django.contrib import admin
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from django.contrib.admin.util import display_for_field, label_for_field, lookup_field
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from django.contrib.admin.views.main import EMPTY_CHANGELIST_VALUE
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from django.contrib.sites.models import Site
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from django.contrib.admin.util import NestedObjects
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from models import Article, Count
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class NestedObjectsTests(TestCase):
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"""
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Tests for ``NestedObject`` utility collection.
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"""
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def setUp(self):
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self.n = NestedObjects()
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self.objs = [Count.objects.create(num=i) for i in range(5)]
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def _check(self, target):
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self.assertEquals(self.n.nested(lambda obj: obj.num), target)
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def _add(self, obj, parent=None):
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# don't bother providing the extra args that NestedObjects ignores
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self.n.add(None, None, obj, None, parent)
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def test_unrelated_roots(self):
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self._add(self.objs[0])
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self._add(self.objs[1])
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self._add(self.objs[2], self.objs[1])
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self._check([0, 1, [2]])
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def test_siblings(self):
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self._add(self.objs[0])
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self._add(self.objs[1], self.objs[0])
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self._add(self.objs[2], self.objs[0])
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self._check([0, [1, 2]])
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def test_duplicate_instances(self):
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self._add(self.objs[0])
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self._add(self.objs[1])
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dupe = Count.objects.get(num=1)
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self._add(dupe, self.objs[0])
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self._check([0, 1])
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def test_non_added_parent(self):
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self._add(self.objs[0], self.objs[1])
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self._check([0])
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def test_cyclic(self):
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self._add(self.objs[0], self.objs[2])
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self._add(self.objs[1], self.objs[0])
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self._add(self.objs[2], self.objs[1])
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self._add(self.objs[0], self.objs[2])
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self._check([0, [1, [2]]])
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class UtilTests(unittest.TestCase):
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def test_values_from_lookup_field(self):
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"""
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Regression test for #12654: lookup_field
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"""
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SITE_NAME = 'example.com'
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TITLE_TEXT = 'Some title'
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CREATED_DATE = datetime.min
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ADMIN_METHOD = 'admin method'
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SIMPLE_FUNCTION = 'function'
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INSTANCE_ATTRIBUTE = 'attr'
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class MockModelAdmin(object):
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def get_admin_value(self, obj):
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return ADMIN_METHOD
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simple_function = lambda obj: SIMPLE_FUNCTION
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article = Article(
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site=Site(domain=SITE_NAME),
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title=TITLE_TEXT,
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created=CREATED_DATE,
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)
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article.non_field = INSTANCE_ATTRIBUTE
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verifications = (
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('site', SITE_NAME),
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('created', localize(CREATED_DATE)),
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('title', TITLE_TEXT),
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('get_admin_value', ADMIN_METHOD),
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(simple_function, SIMPLE_FUNCTION),
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('test_from_model', article.test_from_model()),
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('non_field', INSTANCE_ATTRIBUTE)
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)
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mock_admin = MockModelAdmin()
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for name, value in verifications:
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field, attr, resolved_value = lookup_field(name, article, mock_admin)
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if field is not None:
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resolved_value = display_for_field(resolved_value, field)
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self.assertEqual(value, resolved_value)
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def test_null_display_for_field(self):
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"""
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Regression test for #12550: display_for_field should handle None
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value.
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"""
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display_value = display_for_field(None, models.CharField())
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self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
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display_value = display_for_field(None, models.CharField(
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choices=(
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(None, "test_none"),
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)
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))
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self.assertEqual(display_value, "test_none")
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display_value = display_for_field(None, models.DateField())
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self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
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display_value = display_for_field(None, models.TimeField())
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self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
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display_value = display_for_field(None, models.NullBooleanField())
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self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
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display_value = display_for_field(None, models.DecimalField())
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self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
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display_value = display_for_field(None, models.FloatField())
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self.assertEqual(display_value, EMPTY_CHANGELIST_VALUE)
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def test_label_for_field(self):
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"""
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Tests for label_for_field
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"""
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self.assertEquals(
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label_for_field("title", Article),
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"title"
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)
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self.assertEquals(
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label_for_field("title2", Article),
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"another name"
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)
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self.assertEquals(
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label_for_field("title2", Article, return_attr=True),
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("another name", None)
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)
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self.assertEquals(
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label_for_field("__unicode__", Article),
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"article"
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)
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self.assertEquals(
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label_for_field("__str__", Article),
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"article"
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)
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self.assertRaises(
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AttributeError,
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lambda: label_for_field("unknown", Article)
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)
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def test_callable(obj):
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return "nothing"
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self.assertEquals(
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label_for_field(test_callable, Article),
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"test_callable"
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)
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self.assertEquals(
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label_for_field(test_callable, Article, return_attr=True),
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("test_callable", test_callable)
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)
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self.assertEquals(
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label_for_field("test_from_model", Article),
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"test_from_model"
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)
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self.assertEquals(
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label_for_field("test_from_model", Article, return_attr=True),
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("test_from_model", Article.test_from_model)
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)
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self.assertEquals(
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label_for_field("test_from_model_with_override", Article),
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"not what you expect"
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)
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self.assertEquals(
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label_for_field(lambda x: "nothing", Article),
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"--"
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)
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class MockModelAdmin(object):
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def test_from_model(self, obj):
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return "nothing"
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test_from_model.short_description = "not really the model"
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self.assertEquals(
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label_for_field("test_from_model", Article, model_admin=MockModelAdmin),
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"not really the model"
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)
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self.assertEquals(
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label_for_field("test_from_model", Article,
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model_admin = MockModelAdmin,
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return_attr = True
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),
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("not really the model", MockModelAdmin.test_from_model)
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)
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