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80aae83439
Black 23.1.0 is released which, as the first release of the year,
introduces the 2023 stable style. This incorporates most of last year's
preview style.
https://github.com/psf/black/releases/tag/23.1.0
Backport of 097e3a70c1 from main
427 lines
15 KiB
Python
427 lines
15 KiB
Python
from datetime import datetime
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from decimal import Decimal
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from django import forms
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from django.conf import settings
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from django.contrib import admin
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from django.contrib.admin import helpers
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from django.contrib.admin.utils import (
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NestedObjects,
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display_for_field,
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display_for_value,
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flatten,
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flatten_fieldsets,
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help_text_for_field,
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label_for_field,
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lookup_field,
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quote,
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)
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from django.db import DEFAULT_DB_ALIAS, models
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from django.test import SimpleTestCase, TestCase, override_settings
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from django.utils.formats import localize
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from django.utils.safestring import mark_safe
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from .models import Article, Car, Count, Event, EventGuide, Location, Site, Vehicle
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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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@classmethod
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def setUpTestData(cls):
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cls.n = NestedObjects(using=DEFAULT_DB_ALIAS)
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cls.objs = [Count.objects.create(num=i) for i in range(5)]
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def _check(self, target):
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self.assertEqual(self.n.nested(lambda obj: obj.num), target)
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def _connect(self, i, j):
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self.objs[i].parent = self.objs[j]
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self.objs[i].save()
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def _collect(self, *indices):
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self.n.collect([self.objs[i] for i in indices])
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def test_unrelated_roots(self):
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self._connect(2, 1)
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self._collect(0)
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self._collect(1)
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self._check([0, 1, [2]])
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def test_siblings(self):
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self._connect(1, 0)
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self._connect(2, 0)
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self._collect(0)
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self._check([0, [1, 2]])
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def test_non_added_parent(self):
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self._connect(0, 1)
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self._collect(0)
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self._check([0])
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def test_cyclic(self):
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self._connect(0, 2)
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self._connect(1, 0)
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self._connect(2, 1)
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self._collect(0)
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self._check([0, [1, [2]]])
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def test_queries(self):
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self._connect(1, 0)
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self._connect(2, 0)
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# 1 query to fetch all children of 0 (1 and 2)
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# 1 query to fetch all children of 1 and 2 (none)
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# Should not require additional queries to populate the nested graph.
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self.assertNumQueries(2, self._collect, 0)
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def test_on_delete_do_nothing(self):
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"""
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The nested collector doesn't query for DO_NOTHING objects.
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"""
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n = NestedObjects(using=DEFAULT_DB_ALIAS)
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objs = [Event.objects.create()]
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EventGuide.objects.create(event=objs[0])
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with self.assertNumQueries(2):
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# One for Location, one for Guest, and no query for EventGuide
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n.collect(objs)
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def test_relation_on_abstract(self):
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"""
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NestedObjects.collect() doesn't trip (AttributeError) on the special
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notation for relations on abstract models (related_name that contains
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%(app_label)s and/or %(class)s) (#21846).
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"""
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n = NestedObjects(using=DEFAULT_DB_ALIAS)
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Car.objects.create()
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n.collect([Vehicle.objects.first()])
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class UtilsTests(SimpleTestCase):
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empty_value = "-empty-"
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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:
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def get_admin_value(self, obj):
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return ADMIN_METHOD
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def simple_function(obj):
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return SIMPLE_FUNCTION
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site_obj = Site(domain=SITE_NAME)
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article = Article(
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site=site_obj,
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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(
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resolved_value, field, self.empty_value
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)
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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(), self.empty_value)
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self.assertEqual(display_value, self.empty_value)
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display_value = display_for_field(
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None, models.CharField(choices=((None, "test_none"),)), self.empty_value
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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(), self.empty_value)
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self.assertEqual(display_value, self.empty_value)
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display_value = display_for_field(None, models.TimeField(), self.empty_value)
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self.assertEqual(display_value, self.empty_value)
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display_value = display_for_field(
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None, models.BooleanField(null=True), self.empty_value
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)
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expected = (
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'<img src="%sadmin/img/icon-unknown.svg" alt="None" />'
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% settings.STATIC_URL
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)
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self.assertHTMLEqual(display_value, expected)
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display_value = display_for_field(None, models.DecimalField(), self.empty_value)
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self.assertEqual(display_value, self.empty_value)
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display_value = display_for_field(None, models.FloatField(), self.empty_value)
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self.assertEqual(display_value, self.empty_value)
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display_value = display_for_field(None, models.JSONField(), self.empty_value)
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self.assertEqual(display_value, self.empty_value)
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def test_json_display_for_field(self):
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tests = [
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({"a": {"b": "c"}}, '{"a": {"b": "c"}}'),
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(["a", "b"], '["a", "b"]'),
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("a", '"a"'),
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({"a": "你好 世界"}, '{"a": "你好 世界"}'),
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({("a", "b"): "c"}, "{('a', 'b'): 'c'}"), # Invalid JSON.
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]
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for value, display_value in tests:
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with self.subTest(value=value):
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self.assertEqual(
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display_for_field(value, models.JSONField(), self.empty_value),
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display_value,
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)
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def test_number_formats_display_for_field(self):
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display_value = display_for_field(
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12345.6789, models.FloatField(), self.empty_value
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)
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self.assertEqual(display_value, "12345.6789")
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display_value = display_for_field(
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Decimal("12345.6789"), models.DecimalField(), self.empty_value
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)
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self.assertEqual(display_value, "12345.6789")
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display_value = display_for_field(
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12345, models.IntegerField(), self.empty_value
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)
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self.assertEqual(display_value, "12345")
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@override_settings(USE_THOUSAND_SEPARATOR=True)
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def test_number_formats_with_thousand_separator_display_for_field(self):
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display_value = display_for_field(
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12345.6789, models.FloatField(), self.empty_value
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)
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self.assertEqual(display_value, "12,345.6789")
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display_value = display_for_field(
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Decimal("12345.6789"), models.DecimalField(), self.empty_value
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)
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self.assertEqual(display_value, "12,345.6789")
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display_value = display_for_field(
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12345, models.IntegerField(), self.empty_value
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)
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self.assertEqual(display_value, "12,345")
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def test_list_display_for_value(self):
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display_value = display_for_value([1, 2, 3], self.empty_value)
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self.assertEqual(display_value, "1, 2, 3")
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display_value = display_for_value(
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[1, 2, "buckle", "my", "shoe"], self.empty_value
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)
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self.assertEqual(display_value, "1, 2, buckle, my, shoe")
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@override_settings(USE_THOUSAND_SEPARATOR=True)
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def test_list_display_for_value_boolean(self):
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self.assertEqual(
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display_for_value(True, "", boolean=True),
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'<img src="/static/admin/img/icon-yes.svg" alt="True">',
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)
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self.assertEqual(
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display_for_value(False, "", boolean=True),
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'<img src="/static/admin/img/icon-no.svg" alt="False">',
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)
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self.assertEqual(display_for_value(True, ""), "True")
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self.assertEqual(display_for_value(False, ""), "False")
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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.assertEqual(label_for_field("title", Article), "title")
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self.assertEqual(label_for_field("hist", Article), "History")
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self.assertEqual(
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label_for_field("hist", Article, return_attr=True), ("History", None)
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)
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self.assertEqual(label_for_field("__str__", Article), "article")
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with self.assertRaisesMessage(
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AttributeError, "Unable to lookup 'unknown' on Article"
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):
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label_for_field("unknown", Article)
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def test_callable(obj):
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return "nothing"
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self.assertEqual(label_for_field(test_callable, Article), "Test callable")
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self.assertEqual(
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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.assertEqual(label_for_field("test_from_model", Article), "Test from model")
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self.assertEqual(
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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.assertEqual(
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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.assertEqual(label_for_field(lambda x: "nothing", Article), "--")
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self.assertEqual(label_for_field("site_id", Article), "Site id")
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class MockModelAdmin:
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@admin.display(description="not Really the Model")
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def test_from_model(self, obj):
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return "nothing"
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self.assertEqual(
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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.assertEqual(
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label_for_field(
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"test_from_model", Article, model_admin=MockModelAdmin, 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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def test_label_for_field_form_argument(self):
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class ArticleForm(forms.ModelForm):
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extra_form_field = forms.BooleanField()
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class Meta:
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fields = "__all__"
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model = Article
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self.assertEqual(
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label_for_field("extra_form_field", Article, form=ArticleForm()),
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"Extra form field",
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)
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msg = "Unable to lookup 'nonexistent' on Article or ArticleForm"
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with self.assertRaisesMessage(AttributeError, msg):
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label_for_field("nonexistent", Article, form=ArticleForm()),
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def test_label_for_property(self):
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class MockModelAdmin:
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@property
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@admin.display(description="property short description")
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def test_from_property(self):
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return "this if from property"
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self.assertEqual(
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label_for_field("test_from_property", Article, model_admin=MockModelAdmin),
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"property short description",
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)
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def test_help_text_for_field(self):
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tests = [
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("article", ""),
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("unknown", ""),
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("hist", "History help text"),
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]
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for name, help_text in tests:
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with self.subTest(name=name):
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self.assertEqual(help_text_for_field(name, Article), help_text)
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def test_related_name(self):
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"""
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Regression test for #13963
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"""
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self.assertEqual(
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label_for_field("location", Event, return_attr=True),
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("location", None),
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)
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self.assertEqual(
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label_for_field("event", Location, return_attr=True),
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("awesome event", None),
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)
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self.assertEqual(
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label_for_field("guest", Event, return_attr=True),
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("awesome guest", None),
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)
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def test_safestring_in_field_label(self):
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# safestring should not be escaped
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class MyForm(forms.Form):
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text = forms.CharField(label=mark_safe("<i>text</i>"))
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cb = forms.BooleanField(label=mark_safe("<i>cb</i>"))
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form = MyForm()
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self.assertHTMLEqual(
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helpers.AdminField(form, "text", is_first=False).label_tag(),
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'<label for="id_text" class="required inline"><i>text</i>:</label>',
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)
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self.assertHTMLEqual(
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helpers.AdminField(form, "cb", is_first=False).label_tag(),
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'<label for="id_cb" class="vCheckboxLabel required inline">'
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"<i>cb</i></label>",
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)
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# normal strings needs to be escaped
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class MyForm(forms.Form):
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text = forms.CharField(label="&text")
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cb = forms.BooleanField(label="&cb")
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form = MyForm()
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self.assertHTMLEqual(
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helpers.AdminField(form, "text", is_first=False).label_tag(),
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'<label for="id_text" class="required inline">&text:</label>',
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)
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self.assertHTMLEqual(
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helpers.AdminField(form, "cb", is_first=False).label_tag(),
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'<label for="id_cb" class="vCheckboxLabel required inline">&cb</label>',
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)
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def test_flatten(self):
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flat_all = ["url", "title", "content", "sites"]
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inputs = (
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((), []),
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(("url", "title", ("content", "sites")), flat_all),
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(("url", "title", "content", "sites"), flat_all),
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((("url", "title"), ("content", "sites")), flat_all),
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)
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for orig, expected in inputs:
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self.assertEqual(flatten(orig), expected)
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def test_flatten_fieldsets(self):
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"""
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Regression test for #18051
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"""
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fieldsets = ((None, {"fields": ("url", "title", ("content", "sites"))}),)
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self.assertEqual(
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flatten_fieldsets(fieldsets), ["url", "title", "content", "sites"]
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)
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fieldsets = ((None, {"fields": ("url", "title", ["content", "sites"])}),)
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self.assertEqual(
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flatten_fieldsets(fieldsets), ["url", "title", "content", "sites"]
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)
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def test_quote(self):
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self.assertEqual(quote("something\nor\nother"), "something_0Aor_0Aother")
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