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730 lines
25 KiB
Python
730 lines
25 KiB
Python
import unittest
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from django.core.checks import Error, Warning as DjangoWarning
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from django.db import connection, models
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from django.test import SimpleTestCase, TestCase, skipIfDBFeature
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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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@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(field.check(), [
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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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@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(field.check(), [
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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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@isolate_apps('invalid_models_tests')
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class CharFieldTests(SimpleTestCase):
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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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self.assertEqual(field.check(), [
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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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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(field.check(), [
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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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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(field.check(), [
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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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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(field.check(), [
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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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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(field.check(), [
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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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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(field.check(), [
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Error(
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"'choices' must be an iterable (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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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(field.check(), [
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Error(
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"'choices' must be 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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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(field.check(), [
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Error(
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"'choices' must be an iterable containing (actual "
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"value, 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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def test_choices_containing_lazy(self):
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class Model(models.Model):
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field = models.CharField(max_length=10, choices=[['1', _('1')], ['2', _('2')]])
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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(max_length=10, choices=lazy(lambda: [[1, '1'], [2, '2']], tuple)())
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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, 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(field.check(), [
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Error(
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"'choices' must be 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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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, choices=[
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['knights', [
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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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field = Model._meta.get_field('field')
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self.assertEqual(field.check(), [
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Error(
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"'choices' must be 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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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, 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_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(field.check(), [
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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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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(field.check(), [
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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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@unittest.skipUnless(connection.vendor == 'mysql',
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"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(validator.check_field(field), [
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Error(
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'MySQL does not allow unique CharFields to have a max_length > 255.',
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obj=field,
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id='mysql.E001',
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)
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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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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(auto_now=True, auto_now_add=False, default=now)
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field2 = models.DateTimeField(auto_now=False, auto_now_add=True, default=now)
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field3 = models.DateTimeField(auto_now=True, auto_now_add=True, default=None)
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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(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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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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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(errors, [
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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(
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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_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)
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def test_fix_default_value_tz(self):
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self.test_fix_default_value()
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@isolate_apps('invalid_models_tests')
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class DateTimeFieldTests(SimpleTestCase):
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maxDiff = None
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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.DateTimeField(default=now())
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field_d = models.DateTimeField(default=now().date())
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field_now = models.DateTimeField(default=now)
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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(errors, [
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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(
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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_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)
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def test_fix_default_value_tz(self):
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self.test_fix_default_value()
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@isolate_apps('invalid_models_tests')
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class DecimalFieldTests(SimpleTestCase):
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def test_required_attributes(self):
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class Model(models.Model):
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field = models.DecimalField()
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field = Model._meta.get_field('field')
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self.assertEqual(field.check(), [
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Error(
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"DecimalFields must define a 'decimal_places' attribute.",
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obj=field,
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id='fields.E130',
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),
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Error(
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"DecimalFields must define a 'max_digits' attribute.",
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obj=field,
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id='fields.E132',
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),
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])
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def test_negative_max_digits_and_decimal_places(self):
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class Model(models.Model):
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field = models.DecimalField(max_digits=-1, decimal_places=-1)
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field = Model._meta.get_field('field')
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self.assertEqual(field.check(), [
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Error(
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"'decimal_places' must be a non-negative integer.",
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obj=field,
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id='fields.E131',
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),
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Error(
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"'max_digits' must be a positive integer.",
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obj=field,
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id='fields.E133',
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),
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])
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def test_bad_values_of_max_digits_and_decimal_places(self):
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class Model(models.Model):
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field = models.DecimalField(max_digits="bad", decimal_places="bad")
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field = Model._meta.get_field('field')
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self.assertEqual(field.check(), [
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Error(
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"'decimal_places' must be a non-negative integer.",
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obj=field,
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id='fields.E131',
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),
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Error(
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"'max_digits' must be a positive integer.",
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obj=field,
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id='fields.E133',
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),
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])
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def test_decimal_places_greater_than_max_digits(self):
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class Model(models.Model):
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field = models.DecimalField(max_digits=9, decimal_places=10)
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field = Model._meta.get_field('field')
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self.assertEqual(field.check(), [
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Error(
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"'max_digits' must be greater or equal to 'decimal_places'.",
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obj=field,
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id='fields.E134',
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),
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])
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def test_valid_field(self):
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class Model(models.Model):
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field = models.DecimalField(max_digits=10, decimal_places=10)
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field = Model._meta.get_field('field')
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self.assertEqual(field.check(), [])
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@isolate_apps('invalid_models_tests')
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class FileFieldTests(SimpleTestCase):
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def test_valid_default_case(self):
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class Model(models.Model):
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field = models.FileField()
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self.assertEqual(Model._meta.get_field('field').check(), [])
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def test_valid_case(self):
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class Model(models.Model):
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field = models.FileField(upload_to='somewhere')
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field = Model._meta.get_field('field')
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self.assertEqual(field.check(), [])
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|
|
|
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)
|
|
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',
|
|
)
|
|
])
|
|
|
|
|
|
@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())
|
|
field_now = models.DateField(default=now)
|
|
|
|
field_dt = Model._meta.get_field('field_dt')
|
|
field_t = Model._meta.get_field('field_t')
|
|
field_now = Model._meta.get_field('field_now')
|
|
errors = field_dt.check()
|
|
errors.extend(field_t.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_t,
|
|
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 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(), [
|
|
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',
|
|
)
|
|
])
|