django/tests/validation/tests.py

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from django import forms
from django.core.exceptions import NON_FIELD_ERRORS
from django.test import TestCase
from django.utils.functional import lazy
from . import ValidationTestCase
from .models import (
Article, Author, GenericIPAddressTestModel, GenericIPAddrUnpackUniqueTest,
ModelToValidate,
)
class BaseModelValidationTests(ValidationTestCase):
def test_missing_required_field_raises_error(self):
mtv = ModelToValidate(f_with_custom_validator=42)
self.assertFailsValidation(mtv.full_clean, ['name', 'number'])
def test_with_correct_value_model_validates(self):
mtv = ModelToValidate(number=10, name='Some Name')
self.assertIsNone(mtv.full_clean())
def test_custom_validate_method(self):
mtv = ModelToValidate(number=11)
self.assertFailsValidation(mtv.full_clean, [NON_FIELD_ERRORS, 'name'])
def test_wrong_FK_value_raises_error(self):
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mtv = ModelToValidate(number=10, name='Some Name', parent_id=3)
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self.assertFieldFailsValidationWithMessage(
mtv.full_clean, 'parent',
['model to validate instance with id %r does not exist.' % mtv.parent_id]
)
mtv = ModelToValidate(number=10, name='Some Name', ufm_id='Some Name')
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self.assertFieldFailsValidationWithMessage(
mtv.full_clean, 'ufm',
["unique fields model instance with unique_charfield %r does not exist." % mtv.name]
)
def test_correct_FK_value_validates(self):
parent = ModelToValidate.objects.create(number=10, name='Some Name')
mtv = ModelToValidate(number=10, name='Some Name', parent_id=parent.pk)
self.assertIsNone(mtv.full_clean())
def test_limited_FK_raises_error(self):
# The limit_choices_to on the parent field says that a parent object's
# number attribute must be 10, so this should fail validation.
parent = ModelToValidate.objects.create(number=11, name='Other Name')
mtv = ModelToValidate(number=10, name='Some Name', parent_id=parent.pk)
self.assertFailsValidation(mtv.full_clean, ['parent'])
def test_wrong_email_value_raises_error(self):
mtv = ModelToValidate(number=10, name='Some Name', email='not-an-email')
self.assertFailsValidation(mtv.full_clean, ['email'])
def test_correct_email_value_passes(self):
mtv = ModelToValidate(number=10, name='Some Name', email='valid@email.com')
self.assertIsNone(mtv.full_clean())
def test_wrong_url_value_raises_error(self):
mtv = ModelToValidate(number=10, name='Some Name', url='not a url')
self.assertFieldFailsValidationWithMessage(mtv.full_clean, 'url', ['Enter a valid URL.'])
def test_text_greater_that_charfields_max_length_raises_errors(self):
mtv = ModelToValidate(number=10, name='Some Name' * 100)
self.assertFailsValidation(mtv.full_clean, ['name'])
def test_malformed_slug_raises_error(self):
mtv = ModelToValidate(number=10, name='Some Name', slug='##invalid##')
self.assertFailsValidation(mtv.full_clean, ['slug'])
def test_full_clean_does_not_mutate_exclude(self):
mtv = ModelToValidate(f_with_custom_validator=42)
exclude = ['number']
self.assertFailsValidation(mtv.full_clean, ['name'], exclude=exclude)
self.assertEqual(len(exclude), 1)
self.assertEqual(exclude[0], 'number')
class ArticleForm(forms.ModelForm):
class Meta:
model = Article
exclude = ['author']
class ModelFormsTests(TestCase):
def setUp(self):
self.author = Author.objects.create(name='Joseph Kocherhans')
def test_partial_validation(self):
# Make sure the "commit=False and set field values later" idiom still
# works with model validation.
data = {
'title': 'The state of model validation',
'pub_date': '2010-1-10 14:49:00'
}
form = ArticleForm(data)
self.assertEqual(list(form.errors), [])
article = form.save(commit=False)
article.author = self.author
article.save()
def test_validation_with_empty_blank_field(self):
# Since a value for pub_date wasn't provided and the field is
# blank=True, model-validation should pass.
# Also, Article.clean() should be run, so pub_date will be filled after
# validation, so the form should save cleanly even though pub_date is
# not allowed to be null.
data = {
'title': 'The state of model validation',
}
article = Article(author_id=self.author.id)
form = ArticleForm(data, instance=article)
self.assertEqual(list(form.errors), [])
self.assertIsNotNone(form.instance.pub_date)
article = form.save()
def test_validation_with_invalid_blank_field(self):
# Even though pub_date is set to blank=True, an invalid value was
# provided, so it should fail validation.
data = {
'title': 'The state of model validation',
'pub_date': 'never'
}
article = Article(author_id=self.author.id)
form = ArticleForm(data, instance=article)
self.assertEqual(list(form.errors), ['pub_date'])
class GenericIPAddressFieldTests(ValidationTestCase):
def test_correct_generic_ip_passes(self):
giptm = GenericIPAddressTestModel(generic_ip="1.2.3.4")
self.assertIsNone(giptm.full_clean())
giptm = GenericIPAddressTestModel(generic_ip=" 1.2.3.4 ")
self.assertIsNone(giptm.full_clean())
giptm = GenericIPAddressTestModel(generic_ip="1.2.3.4\n")
self.assertIsNone(giptm.full_clean())
giptm = GenericIPAddressTestModel(generic_ip="2001::2")
self.assertIsNone(giptm.full_clean())
def test_invalid_generic_ip_raises_error(self):
giptm = GenericIPAddressTestModel(generic_ip="294.4.2.1")
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self.assertFailsValidation(giptm.full_clean, ['generic_ip'])
giptm = GenericIPAddressTestModel(generic_ip="1:2")
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self.assertFailsValidation(giptm.full_clean, ['generic_ip'])
giptm = GenericIPAddressTestModel(generic_ip=1)
self.assertFailsValidation(giptm.full_clean, ['generic_ip'])
giptm = GenericIPAddressTestModel(generic_ip=lazy(lambda: 1, int))
self.assertFailsValidation(giptm.full_clean, ['generic_ip'])
def test_correct_v4_ip_passes(self):
giptm = GenericIPAddressTestModel(v4_ip="1.2.3.4")
self.assertIsNone(giptm.full_clean())
def test_invalid_v4_ip_raises_error(self):
giptm = GenericIPAddressTestModel(v4_ip="294.4.2.1")
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self.assertFailsValidation(giptm.full_clean, ['v4_ip'])
giptm = GenericIPAddressTestModel(v4_ip="2001::2")
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self.assertFailsValidation(giptm.full_clean, ['v4_ip'])
def test_correct_v6_ip_passes(self):
giptm = GenericIPAddressTestModel(v6_ip="2001::2")
self.assertIsNone(giptm.full_clean())
def test_invalid_v6_ip_raises_error(self):
giptm = GenericIPAddressTestModel(v6_ip="1.2.3.4")
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self.assertFailsValidation(giptm.full_clean, ['v6_ip'])
giptm = GenericIPAddressTestModel(v6_ip="1:2")
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self.assertFailsValidation(giptm.full_clean, ['v6_ip'])
def test_v6_uniqueness_detection(self):
# These two addresses are the same with different syntax
giptm = GenericIPAddressTestModel(generic_ip="2001::1:0:0:0:0:2")
giptm.save()
giptm = GenericIPAddressTestModel(generic_ip="2001:0:1:2")
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self.assertFailsValidation(giptm.full_clean, ['generic_ip'])
def test_v4_unpack_uniqueness_detection(self):
# These two are different, because we are not doing IPv4 unpacking
giptm = GenericIPAddressTestModel(generic_ip="::ffff:10.10.10.10")
giptm.save()
giptm = GenericIPAddressTestModel(generic_ip="10.10.10.10")
self.assertIsNone(giptm.full_clean())
# These two are the same, because we are doing IPv4 unpacking
giptm = GenericIPAddrUnpackUniqueTest(generic_v4unpack_ip="::ffff:18.52.18.52")
giptm.save()
giptm = GenericIPAddrUnpackUniqueTest(generic_v4unpack_ip="18.52.18.52")
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self.assertFailsValidation(giptm.full_clean, ['generic_v4unpack_ip'])
def test_empty_generic_ip_passes(self):
giptm = GenericIPAddressTestModel(generic_ip="")
self.assertIsNone(giptm.full_clean())
giptm = GenericIPAddressTestModel(generic_ip=None)
self.assertIsNone(giptm.full_clean())