django1/tests/modeltests/validation/tests.py

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from django import forms
from django.test import TestCase
from django.core.exceptions import NON_FIELD_ERRORS
from modeltests.validation import ValidationTestCase
from modeltests.validation.models import Author, Article, ModelToValidate
# Import other tests for this package.
from modeltests.validation.validators import TestModelsWithValidators
from modeltests.validation.test_unique import GetUniqueCheckTests, PerformUniqueChecksTest
from modeltests.validation.test_custom_messages import CustomMessagesTest
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.assertEqual(None, 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):
mtv=ModelToValidate(number=10, name='Some Name', parent_id=3)
self.assertFailsValidation(mtv.full_clean, ['parent'])
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.assertEqual(None, 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.assertEqual(None, 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', [u'Enter a valid value.'])
def test_correct_url_but_nonexisting_gives_404(self):
mtv = ModelToValidate(number=10, name='Some Name', url='http://google.com/we-love-microsoft.html')
self.assertFieldFailsValidationWithMessage(mtv.full_clean, 'url', [u'This URL appears to be a broken link.'])
def test_correct_url_value_passes(self):
mtv = ModelToValidate(number=10, name='Some Name', url='http://www.djangoproject.com/')
self.assertEqual(None, mtv.full_clean()) # This will fail if there's no Internet connection
def test_text_greater_that_charfields_max_length_raises_erros(self):
mtv = ModelToValidate(number=10, name='Some Name'*100)
self.assertFailsValidation(mtv.full_clean, ['name',])
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(form.errors.keys(), [])
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(form.errors.keys(), [])
self.assertNotEqual(form.instance.pub_date, None)
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(form.errors.keys(), ['pub_date'])