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Ticket #19671: test_m2m_validator_called.diff

File test_m2m_validator_called.diff, 2.2 KB (added by fhahn, 12 years ago)
test that checks if a custom validator of a m2m field gets called during form validation

diff --git a/tests/modeltests/validation/models.py b/tests/modeltests/validation/models.py
index db08329..a2fd24c 100644

                def validate_answer_to_universe(value):
     if value != 42:
         raise ValidationError('This is not the answer to life, universe and everything!', code='not42')
+def validate_m2m_fied(value):
+    raise ValidationError('Many to many validator called')
 class ModelToValidate(models.Model):
     name = models.CharField(max_length=100)
     created = models.DateTimeField(default=datetime.now)
-…
+               try:
 except AssertionError as exc:
     assertion_error = exc
 assert str(assertion_error) == "A model can't have more than one AutoField."
+class M2mModel(models.Model):
+    authors = models.ManyToManyField(Author, validators=[validate_m2m_fied])

diff --git a/tests/modeltests/validation/tests.py b/tests/modeltests/validation/tests.py
index 58b7b94..65678b9 100644

                from django.test import TestCase
 from . import ValidationTestCase
 from .models import (Author, Article, ModelToValidate,
     GenericIPAddressTestModel, GenericIPAddrUnpackUniqueTest)
+    GenericIPAddressTestModel, GenericIPAddrUnpackUniqueTest, M2mModel)
 # Import other tests for this package.
 from .test_custom_messages import CustomMessagesTest
-…
+               class ArticleForm(forms.ModelForm):
         model = Article
         exclude = ['author']
+class M2mForm(forms.ModelForm):
+    class Meta:
+        model = M2mModel
 class ModelFormsTests(TestCase):
     def setUp(self):
         self.author = Author.objects.create(name='Joseph Kocherhans')
-…
+               class ModelFormsTests(TestCase):
         form = ArticleForm(data, instance=article)
         self.assertEqual(list(form.errors), ['pub_date'])
+    def test_m2m_validator_gets_called(self):
+        # checks if the custom validator on the m2m field authors gets called
+        form = M2mForm({'authors': [self.author.pk]})
+        self.assertEqual(list(form.errors), ['authors'])
 class GenericIPAddressFieldTests(ValidationTestCase):