mirror of
https://github.com/encode/django-rest-framework.git
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252 lines
8.2 KiB
Python
252 lines
8.2 KiB
Python
from __future__ import unicode_literals
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import re
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from django.core.validators import MaxValueValidator, RegexValidator
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from django.db import models
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from django.test import TestCase
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from rest_framework import generics, serializers, status
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from rest_framework.test import APIRequestFactory
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factory = APIRequestFactory()
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# Regression for #666
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class ValidationModel(models.Model):
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blank_validated_field = models.CharField(max_length=255)
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class ValidationModelSerializer(serializers.ModelSerializer):
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class Meta:
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model = ValidationModel
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fields = ('blank_validated_field',)
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read_only_fields = ('blank_validated_field',)
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class UpdateValidationModel(generics.RetrieveUpdateDestroyAPIView):
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queryset = ValidationModel.objects.all()
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serializer_class = ValidationModelSerializer
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# Regression for #653
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class ShouldValidateModel(models.Model):
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should_validate_field = models.CharField(max_length=255)
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class ShouldValidateModelSerializer(serializers.ModelSerializer):
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renamed = serializers.CharField(source='should_validate_field', required=False)
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def validate_renamed(self, value):
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if len(value) < 3:
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raise serializers.ValidationError('Minimum 3 characters.')
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return value
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class Meta:
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model = ShouldValidateModel
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fields = ('renamed',)
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class TestNestedValidationError(TestCase):
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def test_nested_validation_error_detail(self):
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"""
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Ensure nested validation error detail is rendered correctly.
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"""
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e = serializers.ValidationError({
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'nested': {
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'field': ['error'],
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}
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})
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self.assertEqual(serializers.as_serializer_error(e), {
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'nested': {
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'field': ['error'],
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}
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})
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class TestPreSaveValidationExclusionsSerializer(TestCase):
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def test_renamed_fields_are_model_validated(self):
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"""
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Ensure fields with 'source' applied do get still get model validation.
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"""
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# We've set `required=False` on the serializer, but the model
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# does not have `blank=True`, so this serializer should not validate.
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serializer = ShouldValidateModelSerializer(data={'renamed': ''})
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self.assertEqual(serializer.is_valid(), False)
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self.assertIn('renamed', serializer.errors)
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self.assertNotIn('should_validate_field', serializer.errors)
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class TestCustomValidationMethods(TestCase):
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def test_custom_validation_method_is_executed(self):
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serializer = ShouldValidateModelSerializer(data={'renamed': 'fo'})
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self.assertFalse(serializer.is_valid())
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self.assertIn('renamed', serializer.errors)
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def test_custom_validation_method_passing(self):
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serializer = ShouldValidateModelSerializer(data={'renamed': 'foo'})
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self.assertTrue(serializer.is_valid())
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class ValidationSerializer(serializers.Serializer):
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foo = serializers.CharField()
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def validate_foo(self, attrs, source):
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raise serializers.ValidationError("foo invalid")
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def validate(self, attrs):
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raise serializers.ValidationError("serializer invalid")
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class TestAvoidValidation(TestCase):
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"""
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If serializer was initialized with invalid data (None or non dict-like), it
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should avoid validation layer (validate_<field> and validate methods)
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"""
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def test_serializer_errors_has_only_invalid_data_error(self):
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serializer = ValidationSerializer(data='invalid data')
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self.assertFalse(serializer.is_valid())
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self.assertDictEqual(serializer.errors, {
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'non_field_errors': [
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'Invalid data. Expected a dictionary, but got %s.' % type('').__name__
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]
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})
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# regression tests for issue: 1493
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class ValidationMaxValueValidatorModel(models.Model):
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number_value = models.PositiveIntegerField(validators=[MaxValueValidator(100)])
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class ValidationMaxValueValidatorModelSerializer(serializers.ModelSerializer):
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class Meta:
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model = ValidationMaxValueValidatorModel
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fields = '__all__'
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class UpdateMaxValueValidationModel(generics.RetrieveUpdateDestroyAPIView):
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queryset = ValidationMaxValueValidatorModel.objects.all()
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serializer_class = ValidationMaxValueValidatorModelSerializer
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class TestMaxValueValidatorValidation(TestCase):
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def test_max_value_validation_serializer_success(self):
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serializer = ValidationMaxValueValidatorModelSerializer(data={'number_value': 99})
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self.assertTrue(serializer.is_valid())
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def test_max_value_validation_serializer_fails(self):
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serializer = ValidationMaxValueValidatorModelSerializer(data={'number_value': 101})
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self.assertFalse(serializer.is_valid())
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self.assertDictEqual({'number_value': ['Ensure this value is less than or equal to 100.']}, serializer.errors)
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def test_max_value_validation_success(self):
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obj = ValidationMaxValueValidatorModel.objects.create(number_value=100)
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request = factory.patch('/{0}'.format(obj.pk), {'number_value': 98}, format='json')
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view = UpdateMaxValueValidationModel().as_view()
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response = view(request, pk=obj.pk).render()
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self.assertEqual(response.status_code, status.HTTP_200_OK)
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def test_max_value_validation_fail(self):
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obj = ValidationMaxValueValidatorModel.objects.create(number_value=100)
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request = factory.patch('/{0}'.format(obj.pk), {'number_value': 101}, format='json')
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view = UpdateMaxValueValidationModel().as_view()
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response = view(request, pk=obj.pk).render()
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self.assertEqual(response.content, b'{"number_value":["Ensure this value is less than or equal to 100."]}')
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self.assertEqual(response.status_code, status.HTTP_400_BAD_REQUEST)
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# regression tests for issue: 1533
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class TestChoiceFieldChoicesValidate(TestCase):
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CHOICES = [
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(0, 'Small'),
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(1, 'Medium'),
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(2, 'Large'),
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]
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SINGLE_CHOICES = [0, 1, 2]
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CHOICES_NESTED = [
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('Category', (
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(1, 'First'),
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(2, 'Second'),
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(3, 'Third'),
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)),
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(4, 'Fourth'),
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]
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MIXED_CHOICES = [
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('Category', (
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(1, 'First'),
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(2, 'Second'),
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)),
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3,
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(4, 'Fourth'),
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]
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def test_choices(self):
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"""
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Make sure a value for choices works as expected.
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"""
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f = serializers.ChoiceField(choices=self.CHOICES)
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value = self.CHOICES[0][0]
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try:
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f.to_internal_value(value)
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except serializers.ValidationError:
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self.fail("Value %s does not validate" % str(value))
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def test_single_choices(self):
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"""
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Make sure a single value for choices works as expected.
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"""
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f = serializers.ChoiceField(choices=self.SINGLE_CHOICES)
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value = self.SINGLE_CHOICES[0]
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try:
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f.to_internal_value(value)
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except serializers.ValidationError:
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self.fail("Value %s does not validate" % str(value))
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def test_nested_choices(self):
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"""
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Make sure a nested value for choices works as expected.
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"""
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f = serializers.ChoiceField(choices=self.CHOICES_NESTED)
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value = self.CHOICES_NESTED[0][1][0][0]
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try:
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f.to_internal_value(value)
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except serializers.ValidationError:
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self.fail("Value %s does not validate" % str(value))
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def test_mixed_choices(self):
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"""
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Make sure mixed values for choices works as expected.
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"""
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f = serializers.ChoiceField(choices=self.MIXED_CHOICES)
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value = self.MIXED_CHOICES[1]
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try:
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f.to_internal_value(value)
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except serializers.ValidationError:
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self.fail("Value %s does not validate" % str(value))
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class RegexSerializer(serializers.Serializer):
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pin = serializers.CharField(
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validators=[RegexValidator(regex=re.compile('^[0-9]{4,6}$'),
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message='A PIN is 4-6 digits')])
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expected_repr = """
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RegexSerializer():
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pin = CharField(validators=[<django.core.validators.RegexValidator object>])
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""".strip()
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class TestRegexSerializer(TestCase):
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def test_regex_repr(self):
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serializer_repr = repr(RegexSerializer())
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assert serializer_repr == expected_repr
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