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https://github.com/django/django.git
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1321 lines
44 KiB
Python
1321 lines
44 KiB
Python
import unittest
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import uuid
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from django.core.checks import Error
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from django.core.checks import Warning as DjangoWarning
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from django.db import connection, models
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from django.db.models.functions import Coalesce, Pi
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from django.test import SimpleTestCase, TestCase, skipIfDBFeature, skipUnlessDBFeature
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from django.test.utils import isolate_apps, override_settings
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from django.utils.functional import lazy
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from django.utils.timezone import now
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from django.utils.translation import gettext_lazy as _
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from django.utils.version import get_docs_version
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@isolate_apps("invalid_models_tests")
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class AutoFieldTests(SimpleTestCase):
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def test_valid_case(self):
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class Model(models.Model):
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id = models.AutoField(primary_key=True)
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field = Model._meta.get_field("id")
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self.assertEqual(field.check(), [])
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def test_primary_key(self):
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# primary_key must be True. Refs #12467.
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class Model(models.Model):
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field = models.AutoField(primary_key=False)
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# Prevent Django from autocreating `id` AutoField, which would
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# result in an error, because a model must have exactly one
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# AutoField.
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another = models.IntegerField(primary_key=True)
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"AutoFields must set primary_key=True.",
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obj=field,
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id="fields.E100",
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),
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],
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)
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def test_max_length_warning(self):
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class Model(models.Model):
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auto = models.AutoField(primary_key=True, max_length=2)
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field = Model._meta.get_field("auto")
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self.assertEqual(
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field.check(),
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[
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DjangoWarning(
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"'max_length' is ignored when used with %s."
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% field.__class__.__name__,
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hint="Remove 'max_length' from field",
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obj=field,
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id="fields.W122",
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),
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],
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)
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@isolate_apps("invalid_models_tests")
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class BinaryFieldTests(SimpleTestCase):
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def test_valid_default_value(self):
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class Model(models.Model):
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field1 = models.BinaryField(default=b"test")
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field2 = models.BinaryField(default=None)
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for field_name in ("field1", "field2"):
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field = Model._meta.get_field(field_name)
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self.assertEqual(field.check(), [])
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def test_str_default_value(self):
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class Model(models.Model):
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field = models.BinaryField(default="test")
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"BinaryField's default cannot be a string. Use bytes content "
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"instead.",
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obj=field,
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id="fields.E170",
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),
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],
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)
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@isolate_apps("invalid_models_tests")
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class CharFieldTests(TestCase):
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def test_valid_field(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=255,
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choices=[
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("1", "item1"),
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("2", "item2"),
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],
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db_index=True,
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)
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field = Model._meta.get_field("field")
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self.assertEqual(field.check(), [])
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def test_missing_max_length(self):
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class Model(models.Model):
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field = models.CharField()
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field = Model._meta.get_field("field")
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expected = (
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[]
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if connection.features.supports_unlimited_charfield
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else [
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Error(
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"CharFields must define a 'max_length' attribute.",
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obj=field,
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id="fields.E120",
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),
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]
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)
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self.assertEqual(field.check(), expected)
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def test_negative_max_length(self):
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class Model(models.Model):
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field = models.CharField(max_length=-1)
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'max_length' must be a positive integer.",
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obj=field,
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id="fields.E121",
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),
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],
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)
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def test_bad_max_length_value(self):
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class Model(models.Model):
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field = models.CharField(max_length="bad")
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'max_length' must be a positive integer.",
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obj=field,
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id="fields.E121",
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),
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],
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)
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def test_str_max_length_value(self):
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class Model(models.Model):
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field = models.CharField(max_length="20")
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'max_length' must be a positive integer.",
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obj=field,
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id="fields.E121",
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),
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],
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)
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def test_str_max_length_type(self):
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class Model(models.Model):
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field = models.CharField(max_length=True)
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'max_length' must be a positive integer.",
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obj=field,
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id="fields.E121",
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),
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],
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)
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def test_non_iterable_choices(self):
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class Model(models.Model):
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field = models.CharField(max_length=10, choices="bad")
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'choices' must be a mapping (e.g. a dictionary) or an iterable "
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"(e.g. a list or tuple).",
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obj=field,
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id="fields.E004",
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),
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],
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)
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def test_non_iterable_choices_two_letters(self):
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"""Two letters isn't a valid choice pair."""
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class Model(models.Model):
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field = models.CharField(max_length=10, choices=["ab"])
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'choices' must be a mapping of actual values to human readable "
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"names or an iterable containing (actual value, human readable "
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"name) tuples.",
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obj=field,
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id="fields.E005",
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),
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],
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)
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def test_iterable_of_iterable_choices(self):
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class ThingItem:
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def __init__(self, value, display):
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self.value = value
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self.display = display
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def __iter__(self):
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return iter((self.value, self.display))
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def __len__(self):
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return 2
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class Things:
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def __iter__(self):
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return iter((ThingItem(1, 2), ThingItem(3, 4)))
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class ThingWithIterableChoices(models.Model):
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thing = models.CharField(max_length=100, blank=True, choices=Things())
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self.assertEqual(ThingWithIterableChoices._meta.get_field("thing").check(), [])
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def test_choices_containing_non_pairs(self):
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class Model(models.Model):
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field = models.CharField(max_length=10, choices=[(1, 2, 3), (1, 2, 3)])
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class Model2(models.Model):
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field = models.IntegerField(choices=[0])
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for model in (Model, Model2):
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with self.subTest(model.__name__):
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field = model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'choices' must be a mapping of actual values to human "
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"readable names or an iterable containing (actual value, "
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"human readable name) tuples.",
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obj=field,
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id="fields.E005",
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),
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],
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)
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def test_choices_containing_lazy(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=10, choices=[["1", _("1")], ["2", _("2")]]
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)
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self.assertEqual(Model._meta.get_field("field").check(), [])
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def test_lazy_choices(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=10, choices=lazy(lambda: [[1, "1"], [2, "2"]], tuple)()
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)
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self.assertEqual(Model._meta.get_field("field").check(), [])
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def test_choices_named_group(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=10,
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choices=[
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["knights", [["L", "Lancelot"], ["G", "Galahad"]]],
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["wizards", [["T", "Tim the Enchanter"]]],
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["R", "Random character"],
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],
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)
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self.assertEqual(Model._meta.get_field("field").check(), [])
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def test_choices_named_group_non_pairs(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=10,
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choices=[["knights", [["L", "Lancelot", "Du Lac"]]]],
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)
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'choices' must be a mapping of actual values to human readable "
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"names or an iterable containing (actual value, human readable "
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"name) tuples.",
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obj=field,
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id="fields.E005",
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),
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],
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)
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def test_choices_named_group_bad_structure(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=10,
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choices=[
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[
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"knights",
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[
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["Noble", [["G", "Galahad"]]],
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["Combative", [["L", "Lancelot"]]],
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],
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],
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],
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)
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'choices' must be a mapping of actual values to human readable "
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"names or an iterable containing (actual value, human readable "
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"name) tuples.",
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obj=field,
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id="fields.E005",
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),
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],
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)
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def test_choices_named_group_lazy(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=10,
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choices=[
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[_("knights"), [["L", _("Lancelot")], ["G", _("Galahad")]]],
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["R", _("Random character")],
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],
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)
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self.assertEqual(Model._meta.get_field("field").check(), [])
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def test_choices_in_max_length(self):
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class Model(models.Model):
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field = models.CharField(
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max_length=2,
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choices=[("ABC", "Value Too Long!"), ("OK", "Good")],
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)
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group = models.CharField(
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max_length=2,
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choices=[
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("Nested", [("OK", "Good"), ("Longer", "Longer")]),
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("Grouped", [("Bad", "Bad")]),
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],
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)
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for name, choice_max_length in (("field", 3), ("group", 6)):
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with self.subTest(name):
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field = Model._meta.get_field(name)
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self.assertEqual(
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field.check(),
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[
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Error(
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"'max_length' is too small to fit the longest value "
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"in 'choices' (%d characters)." % choice_max_length,
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obj=field,
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id="fields.E009",
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),
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],
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)
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def test_bad_db_index_value(self):
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class Model(models.Model):
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field = models.CharField(max_length=10, db_index="bad")
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"'db_index' must be None, True or False.",
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obj=field,
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id="fields.E006",
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),
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],
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)
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def test_bad_validators(self):
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class Model(models.Model):
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field = models.CharField(max_length=10, validators=[True])
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field = Model._meta.get_field("field")
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self.assertEqual(
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field.check(),
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[
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Error(
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"All 'validators' must be callable.",
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hint=(
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"validators[0] (True) isn't a function or instance of a "
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"validator class."
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),
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obj=field,
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id="fields.E008",
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),
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],
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)
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@unittest.skipUnless(connection.vendor == "mysql", "Test valid only for MySQL")
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def test_too_long_char_field_under_mysql(self):
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from django.db.backends.mysql.validation import DatabaseValidation
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class Model(models.Model):
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field = models.CharField(unique=True, max_length=256)
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field = Model._meta.get_field("field")
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validator = DatabaseValidation(connection=connection)
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self.assertEqual(
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validator.check_field(field),
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[
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DjangoWarning(
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"%s may not allow unique CharFields to have a max_length > "
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"255." % connection.display_name,
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hint=(
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"See: https://docs.djangoproject.com/en/%s/ref/databases/"
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"#mysql-character-fields" % get_docs_version()
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),
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obj=field,
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id="mysql.W003",
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)
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],
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)
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def test_db_collation(self):
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class Model(models.Model):
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field = models.CharField(max_length=100, db_collation="anything")
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field = Model._meta.get_field("field")
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error = Error(
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"%s does not support a database collation on CharFields."
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% connection.display_name,
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id="fields.E190",
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obj=field,
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)
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expected = (
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[] if connection.features.supports_collation_on_charfield else [error]
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)
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self.assertEqual(field.check(databases=self.databases), expected)
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|
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def test_db_collation_required_db_features(self):
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class Model(models.Model):
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field = models.CharField(max_length=100, db_collation="anything")
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|
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class Meta:
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required_db_features = {"supports_collation_on_charfield"}
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field = Model._meta.get_field("field")
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self.assertEqual(field.check(databases=self.databases), [])
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|
|
|
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@isolate_apps("invalid_models_tests")
|
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class DateFieldTests(SimpleTestCase):
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maxDiff = None
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|
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def test_auto_now_and_auto_now_add_raise_error(self):
|
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class Model(models.Model):
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field0 = models.DateTimeField(auto_now=True, auto_now_add=True, default=now)
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field1 = models.DateTimeField(
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auto_now=True, auto_now_add=False, default=now
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)
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field2 = models.DateTimeField(
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auto_now=False, auto_now_add=True, default=now
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)
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field3 = models.DateTimeField(
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auto_now=True, auto_now_add=True, default=None
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)
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|
|
|
expected = []
|
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checks = []
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for i in range(4):
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field = Model._meta.get_field("field%d" % i)
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expected.append(
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Error(
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"The options auto_now, auto_now_add, and default "
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"are mutually exclusive. Only one of these options "
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"may be present.",
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obj=field,
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id="fields.E160",
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)
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)
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checks.extend(field.check())
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self.assertEqual(checks, expected)
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|
|
def test_fix_default_value(self):
|
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class Model(models.Model):
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field_dt = models.DateField(default=now())
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field_d = models.DateField(default=now().date())
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field_now = models.DateField(default=now)
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|
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field_dt = Model._meta.get_field("field_dt")
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field_d = Model._meta.get_field("field_d")
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field_now = Model._meta.get_field("field_now")
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errors = field_dt.check()
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errors.extend(field_d.check())
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errors.extend(field_now.check()) # doesn't raise a warning
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self.assertEqual(
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errors,
|
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[
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DjangoWarning(
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"Fixed default value provided.",
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hint="It seems you set a fixed date / time / datetime "
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"value as default for this field. This may not be "
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"what you want. If you want to have the current date "
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|
"as default, use `django.utils.timezone.now`",
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obj=field_dt,
|
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id="fields.W161",
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),
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DjangoWarning(
|
|
"Fixed default value provided.",
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|
hint="It seems you set a fixed date / time / datetime "
|
|
"value as default for this field. This may not be "
|
|
"what you want. If you want to have the current date "
|
|
"as default, use `django.utils.timezone.now`",
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|
obj=field_d,
|
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id="fields.W161",
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),
|
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],
|
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)
|
|
|
|
@override_settings(USE_TZ=True)
|
|
def test_fix_default_value_tz(self):
|
|
self.test_fix_default_value()
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class DateTimeFieldTests(SimpleTestCase):
|
|
maxDiff = None
|
|
|
|
def test_fix_default_value(self):
|
|
class Model(models.Model):
|
|
field_dt = models.DateTimeField(default=now())
|
|
field_d = models.DateTimeField(default=now().date())
|
|
field_now = models.DateTimeField(default=now)
|
|
|
|
field_dt = Model._meta.get_field("field_dt")
|
|
field_d = Model._meta.get_field("field_d")
|
|
field_now = Model._meta.get_field("field_now")
|
|
errors = field_dt.check()
|
|
errors.extend(field_d.check())
|
|
errors.extend(field_now.check()) # doesn't raise a warning
|
|
self.assertEqual(
|
|
errors,
|
|
[
|
|
DjangoWarning(
|
|
"Fixed default value provided.",
|
|
hint="It seems you set a fixed date / time / datetime "
|
|
"value as default for this field. This may not be "
|
|
"what you want. If you want to have the current date "
|
|
"as default, use `django.utils.timezone.now`",
|
|
obj=field_dt,
|
|
id="fields.W161",
|
|
),
|
|
DjangoWarning(
|
|
"Fixed default value provided.",
|
|
hint="It seems you set a fixed date / time / datetime "
|
|
"value as default for this field. This may not be "
|
|
"what you want. If you want to have the current date "
|
|
"as default, use `django.utils.timezone.now`",
|
|
obj=field_d,
|
|
id="fields.W161",
|
|
),
|
|
],
|
|
)
|
|
|
|
@override_settings(USE_TZ=True)
|
|
def test_fix_default_value_tz(self):
|
|
self.test_fix_default_value()
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class DecimalFieldTests(SimpleTestCase):
|
|
def test_required_attributes(self):
|
|
class Model(models.Model):
|
|
field = models.DecimalField()
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"DecimalFields must define a 'decimal_places' attribute.",
|
|
obj=field,
|
|
id="fields.E130",
|
|
),
|
|
Error(
|
|
"DecimalFields must define a 'max_digits' attribute.",
|
|
obj=field,
|
|
id="fields.E132",
|
|
),
|
|
],
|
|
)
|
|
|
|
def test_negative_max_digits_and_decimal_places(self):
|
|
class Model(models.Model):
|
|
field = models.DecimalField(max_digits=-1, decimal_places=-1)
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"'decimal_places' must be a non-negative integer.",
|
|
obj=field,
|
|
id="fields.E131",
|
|
),
|
|
Error(
|
|
"'max_digits' must be a positive integer.",
|
|
obj=field,
|
|
id="fields.E133",
|
|
),
|
|
],
|
|
)
|
|
|
|
def test_bad_values_of_max_digits_and_decimal_places(self):
|
|
class Model(models.Model):
|
|
field = models.DecimalField(max_digits="bad", decimal_places="bad")
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"'decimal_places' must be a non-negative integer.",
|
|
obj=field,
|
|
id="fields.E131",
|
|
),
|
|
Error(
|
|
"'max_digits' must be a positive integer.",
|
|
obj=field,
|
|
id="fields.E133",
|
|
),
|
|
],
|
|
)
|
|
|
|
def test_decimal_places_greater_than_max_digits(self):
|
|
class Model(models.Model):
|
|
field = models.DecimalField(max_digits=9, decimal_places=10)
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"'max_digits' must be greater or equal to 'decimal_places'.",
|
|
obj=field,
|
|
id="fields.E134",
|
|
),
|
|
],
|
|
)
|
|
|
|
def test_valid_field(self):
|
|
class Model(models.Model):
|
|
field = models.DecimalField(max_digits=10, decimal_places=10)
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(field.check(), [])
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class FileFieldTests(SimpleTestCase):
|
|
def test_valid_default_case(self):
|
|
class Model(models.Model):
|
|
field = models.FileField()
|
|
|
|
self.assertEqual(Model._meta.get_field("field").check(), [])
|
|
|
|
def test_valid_case(self):
|
|
class Model(models.Model):
|
|
field = models.FileField(upload_to="somewhere")
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(field.check(), [])
|
|
|
|
def test_primary_key(self):
|
|
class Model(models.Model):
|
|
field = models.FileField(primary_key=False, upload_to="somewhere")
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"'primary_key' is not a valid argument for a FileField.",
|
|
obj=field,
|
|
id="fields.E201",
|
|
)
|
|
],
|
|
)
|
|
|
|
def test_upload_to_starts_with_slash(self):
|
|
class Model(models.Model):
|
|
field = models.FileField(upload_to="/somewhere")
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"FileField's 'upload_to' argument must be a relative path, not "
|
|
"an absolute path.",
|
|
obj=field,
|
|
id="fields.E202",
|
|
hint="Remove the leading slash.",
|
|
)
|
|
],
|
|
)
|
|
|
|
def test_upload_to_callable_not_checked(self):
|
|
def callable(instance, filename):
|
|
return "/" + filename
|
|
|
|
class Model(models.Model):
|
|
field = models.FileField(upload_to=callable)
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(field.check(), [])
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class FilePathFieldTests(SimpleTestCase):
|
|
def test_forbidden_files_and_folders(self):
|
|
class Model(models.Model):
|
|
field = models.FilePathField(allow_files=False, allow_folders=False)
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"FilePathFields must have either 'allow_files' or 'allow_folders' "
|
|
"set to True.",
|
|
obj=field,
|
|
id="fields.E140",
|
|
),
|
|
],
|
|
)
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class GenericIPAddressFieldTests(SimpleTestCase):
|
|
def test_non_nullable_blank(self):
|
|
class Model(models.Model):
|
|
field = models.GenericIPAddressField(null=False, blank=True)
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
(
|
|
"GenericIPAddressFields cannot have blank=True if null=False, "
|
|
"as blank values are stored as nulls."
|
|
),
|
|
obj=field,
|
|
id="fields.E150",
|
|
),
|
|
],
|
|
)
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class ImageFieldTests(SimpleTestCase):
|
|
def test_pillow_installed(self):
|
|
try:
|
|
from PIL import Image # NOQA
|
|
except ImportError:
|
|
pillow_installed = False
|
|
else:
|
|
pillow_installed = True
|
|
|
|
class Model(models.Model):
|
|
field = models.ImageField(upload_to="somewhere")
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check()
|
|
expected = (
|
|
[]
|
|
if pillow_installed
|
|
else [
|
|
Error(
|
|
"Cannot use ImageField because Pillow is not installed.",
|
|
hint=(
|
|
"Get Pillow at https://pypi.org/project/Pillow/ "
|
|
'or run command "python -m pip install Pillow".'
|
|
),
|
|
obj=field,
|
|
id="fields.E210",
|
|
),
|
|
]
|
|
)
|
|
self.assertEqual(errors, expected)
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class IntegerFieldTests(SimpleTestCase):
|
|
def test_max_length_warning(self):
|
|
class Model(models.Model):
|
|
integer = models.IntegerField(max_length=2)
|
|
biginteger = models.BigIntegerField(max_length=2)
|
|
smallinteger = models.SmallIntegerField(max_length=2)
|
|
positiveinteger = models.PositiveIntegerField(max_length=2)
|
|
positivebiginteger = models.PositiveBigIntegerField(max_length=2)
|
|
positivesmallinteger = models.PositiveSmallIntegerField(max_length=2)
|
|
|
|
for field in Model._meta.get_fields():
|
|
if field.auto_created:
|
|
continue
|
|
with self.subTest(name=field.name):
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
DjangoWarning(
|
|
"'max_length' is ignored when used with %s."
|
|
% field.__class__.__name__,
|
|
hint="Remove 'max_length' from field",
|
|
obj=field,
|
|
id="fields.W122",
|
|
)
|
|
],
|
|
)
|
|
|
|
def test_non_iterable_choices(self):
|
|
class Model(models.Model):
|
|
field = models.IntegerField(choices=123)
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"'choices' must be a mapping (e.g. a dictionary) or an iterable "
|
|
"(e.g. a list or tuple).",
|
|
obj=field,
|
|
id="fields.E004",
|
|
),
|
|
],
|
|
)
|
|
|
|
def test_non_iterable_choices_number(self):
|
|
"""An integer isn't a valid choice pair."""
|
|
|
|
class Model(models.Model):
|
|
field = models.IntegerField(choices=[123])
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(
|
|
field.check(),
|
|
[
|
|
Error(
|
|
"'choices' must be a mapping of actual values to human readable "
|
|
"names or an iterable containing (actual value, human readable "
|
|
"name) tuples.",
|
|
obj=field,
|
|
id="fields.E005",
|
|
),
|
|
],
|
|
)
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class TimeFieldTests(SimpleTestCase):
|
|
maxDiff = None
|
|
|
|
def test_fix_default_value(self):
|
|
class Model(models.Model):
|
|
field_dt = models.TimeField(default=now())
|
|
field_t = models.TimeField(default=now().time())
|
|
# Timezone-aware time object (when USE_TZ=True).
|
|
field_tz = models.TimeField(default=now().timetz())
|
|
field_now = models.DateField(default=now)
|
|
|
|
names = ["field_dt", "field_t", "field_tz", "field_now"]
|
|
fields = [Model._meta.get_field(name) for name in names]
|
|
errors = []
|
|
for field in fields:
|
|
errors.extend(field.check())
|
|
|
|
self.assertEqual(
|
|
errors,
|
|
[
|
|
DjangoWarning(
|
|
"Fixed default value provided.",
|
|
hint="It seems you set a fixed date / time / datetime "
|
|
"value as default for this field. This may not be "
|
|
"what you want. If you want to have the current date "
|
|
"as default, use `django.utils.timezone.now`",
|
|
obj=fields[0],
|
|
id="fields.W161",
|
|
),
|
|
DjangoWarning(
|
|
"Fixed default value provided.",
|
|
hint="It seems you set a fixed date / time / datetime "
|
|
"value as default for this field. This may not be "
|
|
"what you want. If you want to have the current date "
|
|
"as default, use `django.utils.timezone.now`",
|
|
obj=fields[1],
|
|
id="fields.W161",
|
|
),
|
|
DjangoWarning(
|
|
"Fixed default value provided.",
|
|
hint=(
|
|
"It seems you set a fixed date / time / datetime value as "
|
|
"default for this field. This may not be what you want. "
|
|
"If you want to have the current date as default, use "
|
|
"`django.utils.timezone.now`"
|
|
),
|
|
obj=fields[2],
|
|
id="fields.W161",
|
|
),
|
|
# field_now doesn't raise a warning.
|
|
],
|
|
)
|
|
|
|
@override_settings(USE_TZ=True)
|
|
def test_fix_default_value_tz(self):
|
|
self.test_fix_default_value()
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class TextFieldTests(TestCase):
|
|
@skipIfDBFeature("supports_index_on_text_field")
|
|
def test_max_length_warning(self):
|
|
class Model(models.Model):
|
|
value = models.TextField(db_index=True)
|
|
|
|
field = Model._meta.get_field("value")
|
|
field_type = field.db_type(connection)
|
|
self.assertEqual(
|
|
field.check(databases=self.databases),
|
|
[
|
|
DjangoWarning(
|
|
"%s does not support a database index on %s columns."
|
|
% (connection.display_name, field_type),
|
|
hint=(
|
|
"An index won't be created. Silence this warning if you "
|
|
"don't care about it."
|
|
),
|
|
obj=field,
|
|
id="fields.W162",
|
|
)
|
|
],
|
|
)
|
|
|
|
def test_db_collation(self):
|
|
class Model(models.Model):
|
|
field = models.TextField(db_collation="anything")
|
|
|
|
field = Model._meta.get_field("field")
|
|
error = Error(
|
|
"%s does not support a database collation on TextFields."
|
|
% connection.display_name,
|
|
id="fields.E190",
|
|
obj=field,
|
|
)
|
|
expected = (
|
|
[] if connection.features.supports_collation_on_textfield else [error]
|
|
)
|
|
self.assertEqual(field.check(databases=self.databases), expected)
|
|
|
|
def test_db_collation_required_db_features(self):
|
|
class Model(models.Model):
|
|
field = models.TextField(db_collation="anything")
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_collation_on_textfield"}
|
|
|
|
field = Model._meta.get_field("field")
|
|
self.assertEqual(field.check(databases=self.databases), [])
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class UUIDFieldTests(TestCase):
|
|
def test_choices_named_group(self):
|
|
class Model(models.Model):
|
|
field = models.UUIDField(
|
|
choices=[
|
|
[
|
|
"knights",
|
|
[
|
|
[
|
|
uuid.UUID("5c859437-d061-4847-b3f7-e6b78852f8c8"),
|
|
"Lancelot",
|
|
],
|
|
[
|
|
uuid.UUID("c7853ec1-2ea3-4359-b02d-b54e8f1bcee2"),
|
|
"Galahad",
|
|
],
|
|
],
|
|
],
|
|
[uuid.UUID("25d405be-4895-4d50-9b2e-d6695359ce47"), "Other"],
|
|
],
|
|
)
|
|
|
|
self.assertEqual(Model._meta.get_field("field").check(), [])
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
@skipUnlessDBFeature("supports_json_field")
|
|
class JSONFieldTests(TestCase):
|
|
def test_invalid_default(self):
|
|
class Model(models.Model):
|
|
field = models.JSONField(default={})
|
|
|
|
self.assertEqual(
|
|
Model._meta.get_field("field").check(),
|
|
[
|
|
DjangoWarning(
|
|
msg=(
|
|
"JSONField default should be a callable instead of an "
|
|
"instance so that it's not shared between all field "
|
|
"instances."
|
|
),
|
|
hint=("Use a callable instead, e.g., use `dict` instead of `{}`."),
|
|
obj=Model._meta.get_field("field"),
|
|
id="fields.E010",
|
|
)
|
|
],
|
|
)
|
|
|
|
def test_valid_default(self):
|
|
class Model(models.Model):
|
|
field = models.JSONField(default=dict)
|
|
|
|
self.assertEqual(Model._meta.get_field("field").check(), [])
|
|
|
|
def test_valid_default_none(self):
|
|
class Model(models.Model):
|
|
field = models.JSONField(default=None)
|
|
|
|
self.assertEqual(Model._meta.get_field("field").check(), [])
|
|
|
|
def test_valid_callable_default(self):
|
|
def callable_default():
|
|
return {"it": "works"}
|
|
|
|
class Model(models.Model):
|
|
field = models.JSONField(default=callable_default)
|
|
|
|
self.assertEqual(Model._meta.get_field("field").check(), [])
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class DbCommentTests(TestCase):
|
|
def test_db_comment(self):
|
|
class Model(models.Model):
|
|
field = models.IntegerField(db_comment="Column comment")
|
|
|
|
errors = Model._meta.get_field("field").check(databases=self.databases)
|
|
expected = (
|
|
[]
|
|
if connection.features.supports_comments
|
|
else [
|
|
DjangoWarning(
|
|
f"{connection.display_name} does not support comments on columns "
|
|
f"(db_comment).",
|
|
obj=Model._meta.get_field("field"),
|
|
id="fields.W163",
|
|
),
|
|
]
|
|
)
|
|
self.assertEqual(errors, expected)
|
|
|
|
def test_db_comment_required_db_features(self):
|
|
class Model(models.Model):
|
|
field = models.IntegerField(db_comment="Column comment")
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_comments"}
|
|
|
|
errors = Model._meta.get_field("field").check(databases=self.databases)
|
|
self.assertEqual(errors, [])
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class InvalidDBDefaultTests(TestCase):
|
|
def test_db_default(self):
|
|
class Model(models.Model):
|
|
field = models.FloatField(db_default=Pi())
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check(databases=self.databases)
|
|
|
|
if connection.features.supports_expression_defaults:
|
|
expected_errors = []
|
|
else:
|
|
msg = (
|
|
f"{connection.display_name} does not support default database values "
|
|
"with expressions (db_default)."
|
|
)
|
|
expected_errors = [Error(msg=msg, obj=field, id="fields.E011")]
|
|
self.assertEqual(errors, expected_errors)
|
|
|
|
def test_db_default_literal(self):
|
|
class Model(models.Model):
|
|
field = models.IntegerField(db_default=1)
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check(databases=self.databases)
|
|
self.assertEqual(errors, [])
|
|
|
|
def test_db_default_required_db_features(self):
|
|
class Model(models.Model):
|
|
field = models.FloatField(db_default=Pi())
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_expression_defaults"}
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check(databases=self.databases)
|
|
self.assertEqual(errors, [])
|
|
|
|
def test_db_default_expression_invalid(self):
|
|
expression = models.F("field_name")
|
|
|
|
class Model(models.Model):
|
|
field = models.FloatField(db_default=expression)
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check(databases=self.databases)
|
|
|
|
if connection.features.supports_expression_defaults:
|
|
msg = f"{expression} cannot be used in db_default."
|
|
expected_errors = [Error(msg=msg, obj=field, id="fields.E012")]
|
|
else:
|
|
msg = (
|
|
f"{connection.display_name} does not support default database values "
|
|
"with expressions (db_default)."
|
|
)
|
|
expected_errors = [Error(msg=msg, obj=field, id="fields.E011")]
|
|
self.assertEqual(errors, expected_errors)
|
|
|
|
def test_db_default_expression_required_db_features(self):
|
|
expression = models.F("field_name")
|
|
|
|
class Model(models.Model):
|
|
field = models.FloatField(db_default=expression)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_expression_defaults"}
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check(databases=self.databases)
|
|
|
|
if connection.features.supports_expression_defaults:
|
|
msg = f"{expression} cannot be used in db_default."
|
|
expected_errors = [Error(msg=msg, obj=field, id="fields.E012")]
|
|
else:
|
|
expected_errors = []
|
|
self.assertEqual(errors, expected_errors)
|
|
|
|
@skipUnlessDBFeature("supports_expression_defaults")
|
|
def test_db_default_combined_invalid(self):
|
|
expression = models.Value(4.5) + models.F("field_name")
|
|
|
|
class Model(models.Model):
|
|
field = models.FloatField(db_default=expression)
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check(databases=self.databases)
|
|
|
|
msg = f"{expression} cannot be used in db_default."
|
|
expected_error = Error(msg=msg, obj=field, id="fields.E012")
|
|
self.assertEqual(errors, [expected_error])
|
|
|
|
@skipUnlessDBFeature("supports_expression_defaults")
|
|
def test_db_default_function_arguments_invalid(self):
|
|
expression = Coalesce(models.Value(4.5), models.F("field_name"))
|
|
|
|
class Model(models.Model):
|
|
field = models.FloatField(db_default=expression)
|
|
|
|
field = Model._meta.get_field("field")
|
|
errors = field.check(databases=self.databases)
|
|
|
|
msg = f"{expression} cannot be used in db_default."
|
|
expected_error = Error(msg=msg, obj=field, id="fields.E012")
|
|
self.assertEqual(errors, [expected_error])
|
|
|
|
|
|
@isolate_apps("invalid_models_tests")
|
|
class GeneratedFieldTests(TestCase):
|
|
def test_not_supported(self):
|
|
db_persist = connection.features.supports_stored_generated_columns
|
|
|
|
class Model(models.Model):
|
|
name = models.IntegerField()
|
|
field = models.GeneratedField(
|
|
expression=models.F("name"), db_persist=db_persist
|
|
)
|
|
|
|
expected_errors = []
|
|
if (
|
|
not connection.features.supports_stored_generated_columns
|
|
and not connection.features.supports_virtual_generated_columns
|
|
):
|
|
expected_errors.append(
|
|
Error(
|
|
f"{connection.display_name} does not support GeneratedFields.",
|
|
obj=Model._meta.get_field("field"),
|
|
id="fields.E220",
|
|
)
|
|
)
|
|
if (
|
|
not db_persist
|
|
and not connection.features.supports_virtual_generated_columns
|
|
):
|
|
expected_errors.append(
|
|
Error(
|
|
f"{connection.display_name} does not support non-persisted "
|
|
"GeneratedFields.",
|
|
obj=Model._meta.get_field("field"),
|
|
id="fields.E221",
|
|
hint="Set db_persist=True on the field.",
|
|
),
|
|
)
|
|
self.assertEqual(
|
|
Model._meta.get_field("field").check(databases={"default"}),
|
|
expected_errors,
|
|
)
|
|
|
|
def test_not_supported_stored_required_db_features(self):
|
|
class Model(models.Model):
|
|
name = models.IntegerField()
|
|
field = models.GeneratedField(expression=models.F("name"), db_persist=True)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_stored_generated_columns"}
|
|
|
|
self.assertEqual(Model.check(databases=self.databases), [])
|
|
|
|
def test_not_supported_virtual_required_db_features(self):
|
|
class Model(models.Model):
|
|
name = models.IntegerField()
|
|
field = models.GeneratedField(expression=models.F("name"), db_persist=False)
|
|
|
|
class Meta:
|
|
required_db_features = {"supports_virtual_generated_columns"}
|
|
|
|
self.assertEqual(Model.check(databases=self.databases), [])
|
|
|
|
@skipUnlessDBFeature("supports_stored_generated_columns")
|
|
def test_not_supported_virtual(self):
|
|
class Model(models.Model):
|
|
name = models.IntegerField()
|
|
field = models.GeneratedField(expression=models.F("name"), db_persist=False)
|
|
a = models.TextField()
|
|
|
|
excepted_errors = (
|
|
[]
|
|
if connection.features.supports_virtual_generated_columns
|
|
else [
|
|
Error(
|
|
f"{connection.display_name} does not support non-persisted "
|
|
"GeneratedFields.",
|
|
obj=Model._meta.get_field("field"),
|
|
id="fields.E221",
|
|
hint="Set db_persist=True on the field.",
|
|
),
|
|
]
|
|
)
|
|
self.assertEqual(
|
|
Model._meta.get_field("field").check(databases={"default"}),
|
|
excepted_errors,
|
|
)
|
|
|
|
@skipUnlessDBFeature("supports_virtual_generated_columns")
|
|
def test_not_supported_stored(self):
|
|
class Model(models.Model):
|
|
name = models.IntegerField()
|
|
field = models.GeneratedField(expression=models.F("name"), db_persist=True)
|
|
a = models.TextField()
|
|
|
|
expected_errors = (
|
|
[]
|
|
if connection.features.supports_stored_generated_columns
|
|
else [
|
|
Error(
|
|
f"{connection.display_name} does not support persisted "
|
|
"GeneratedFields.",
|
|
obj=Model._meta.get_field("field"),
|
|
id="fields.E222",
|
|
hint="Set db_persist=False on the field.",
|
|
),
|
|
]
|
|
)
|
|
self.assertEqual(
|
|
Model._meta.get_field("field").check(databases={"default"}),
|
|
expected_errors,
|
|
)
|