190 lines
6.8 KiB
Python
190 lines
6.8 KiB
Python
from django.core import validators
|
|
from django.core.exceptions import ValidationError
|
|
from django.db import connection, models
|
|
from django.test import SimpleTestCase, TestCase
|
|
|
|
from .models import (
|
|
BigIntegerModel, IntegerModel, PositiveIntegerModel,
|
|
PositiveSmallIntegerModel, SmallIntegerModel,
|
|
)
|
|
|
|
|
|
class IntegerFieldTests(TestCase):
|
|
model = IntegerModel
|
|
documented_range = (-2147483648, 2147483647)
|
|
|
|
@property
|
|
def backend_range(self):
|
|
field = self.model._meta.get_field('value')
|
|
internal_type = field.get_internal_type()
|
|
return connection.ops.integer_field_range(internal_type)
|
|
|
|
def test_documented_range(self):
|
|
"""
|
|
Values within the documented safe range pass validation, and can be
|
|
saved and retrieved without corruption.
|
|
"""
|
|
min_value, max_value = self.documented_range
|
|
|
|
instance = self.model(value=min_value)
|
|
instance.full_clean()
|
|
instance.save()
|
|
qs = self.model.objects.filter(value__lte=min_value)
|
|
self.assertEqual(qs.count(), 1)
|
|
self.assertEqual(qs[0].value, min_value)
|
|
|
|
instance = self.model(value=max_value)
|
|
instance.full_clean()
|
|
instance.save()
|
|
qs = self.model.objects.filter(value__gte=max_value)
|
|
self.assertEqual(qs.count(), 1)
|
|
self.assertEqual(qs[0].value, max_value)
|
|
|
|
def test_backend_range_save(self):
|
|
"""
|
|
Backend specific ranges can be saved without corruption.
|
|
"""
|
|
min_value, max_value = self.backend_range
|
|
|
|
if min_value is not None:
|
|
instance = self.model(value=min_value)
|
|
instance.full_clean()
|
|
instance.save()
|
|
qs = self.model.objects.filter(value__lte=min_value)
|
|
self.assertEqual(qs.count(), 1)
|
|
self.assertEqual(qs[0].value, min_value)
|
|
|
|
if max_value is not None:
|
|
instance = self.model(value=max_value)
|
|
instance.full_clean()
|
|
instance.save()
|
|
qs = self.model.objects.filter(value__gte=max_value)
|
|
self.assertEqual(qs.count(), 1)
|
|
self.assertEqual(qs[0].value, max_value)
|
|
|
|
def test_backend_range_validation(self):
|
|
"""
|
|
Backend specific ranges are enforced at the model validation level
|
|
(#12030).
|
|
"""
|
|
min_value, max_value = self.backend_range
|
|
|
|
if min_value is not None:
|
|
instance = self.model(value=min_value - 1)
|
|
expected_message = validators.MinValueValidator.message % {
|
|
'limit_value': min_value,
|
|
}
|
|
with self.assertRaisesMessage(ValidationError, expected_message):
|
|
instance.full_clean()
|
|
instance.value = min_value
|
|
instance.full_clean()
|
|
|
|
if max_value is not None:
|
|
instance = self.model(value=max_value + 1)
|
|
expected_message = validators.MaxValueValidator.message % {
|
|
'limit_value': max_value,
|
|
}
|
|
with self.assertRaisesMessage(ValidationError, expected_message):
|
|
instance.full_clean()
|
|
instance.value = max_value
|
|
instance.full_clean()
|
|
|
|
def test_redundant_backend_range_validators(self):
|
|
"""
|
|
If there are stricter validators than the ones from the database
|
|
backend then the backend validators aren't added.
|
|
"""
|
|
min_backend_value, max_backend_value = self.backend_range
|
|
|
|
if min_backend_value is not None:
|
|
min_custom_value = min_backend_value + 1
|
|
ranged_value_field = self.model._meta.get_field('value').__class__(
|
|
validators=[validators.MinValueValidator(min_custom_value)]
|
|
)
|
|
field_range_message = validators.MinValueValidator.message % {
|
|
'limit_value': min_custom_value,
|
|
}
|
|
with self.assertRaisesMessage(ValidationError, "[%r]" % field_range_message):
|
|
ranged_value_field.run_validators(min_backend_value - 1)
|
|
|
|
if max_backend_value is not None:
|
|
max_custom_value = max_backend_value - 1
|
|
ranged_value_field = self.model._meta.get_field('value').__class__(
|
|
validators=[validators.MaxValueValidator(max_custom_value)]
|
|
)
|
|
field_range_message = validators.MaxValueValidator.message % {
|
|
'limit_value': max_custom_value,
|
|
}
|
|
with self.assertRaisesMessage(ValidationError, "[%r]" % field_range_message):
|
|
ranged_value_field.run_validators(max_backend_value + 1)
|
|
|
|
def test_types(self):
|
|
instance = self.model(value=0)
|
|
self.assertIsInstance(instance.value, int)
|
|
instance.save()
|
|
self.assertIsInstance(instance.value, int)
|
|
instance = self.model.objects.get()
|
|
self.assertIsInstance(instance.value, int)
|
|
|
|
def test_coercing(self):
|
|
self.model.objects.create(value='10')
|
|
instance = self.model.objects.get(value='10')
|
|
self.assertEqual(instance.value, 10)
|
|
|
|
|
|
class SmallIntegerFieldTests(IntegerFieldTests):
|
|
model = SmallIntegerModel
|
|
documented_range = (-32768, 32767)
|
|
|
|
|
|
class BigIntegerFieldTests(IntegerFieldTests):
|
|
model = BigIntegerModel
|
|
documented_range = (-9223372036854775808, 9223372036854775807)
|
|
|
|
|
|
class PositiveSmallIntegerFieldTests(IntegerFieldTests):
|
|
model = PositiveSmallIntegerModel
|
|
documented_range = (0, 32767)
|
|
|
|
|
|
class PositiveIntegerFieldTests(IntegerFieldTests):
|
|
model = PositiveIntegerModel
|
|
documented_range = (0, 2147483647)
|
|
|
|
|
|
class ValidationTests(SimpleTestCase):
|
|
|
|
def test_integerfield_cleans_valid_string(self):
|
|
f = models.IntegerField()
|
|
self.assertEqual(f.clean('2', None), 2)
|
|
|
|
def test_integerfield_raises_error_on_invalid_intput(self):
|
|
f = models.IntegerField()
|
|
with self.assertRaises(ValidationError):
|
|
f.clean('a', None)
|
|
|
|
def test_choices_validation_supports_named_groups(self):
|
|
f = models.IntegerField(choices=(('group', ((10, 'A'), (20, 'B'))), (30, 'C')))
|
|
self.assertEqual(10, f.clean(10, None))
|
|
|
|
def test_nullable_integerfield_raises_error_with_blank_false(self):
|
|
f = models.IntegerField(null=True, blank=False)
|
|
with self.assertRaises(ValidationError):
|
|
f.clean(None, None)
|
|
|
|
def test_nullable_integerfield_cleans_none_on_null_and_blank_true(self):
|
|
f = models.IntegerField(null=True, blank=True)
|
|
self.assertIsNone(f.clean(None, None))
|
|
|
|
def test_integerfield_raises_error_on_empty_input(self):
|
|
f = models.IntegerField(null=False)
|
|
with self.assertRaises(ValidationError):
|
|
f.clean(None, None)
|
|
with self.assertRaises(ValidationError):
|
|
f.clean('', None)
|
|
|
|
def test_integerfield_validates_zero_against_choices(self):
|
|
f = models.IntegerField(choices=((1, 1),))
|
|
with self.assertRaises(ValidationError):
|
|
f.clean('0', None)
|