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Refs #17413 -- Added isinstance backward compatibility on ErrorList.
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@ -79,7 +79,7 @@ class ErrorDict(dict):
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@python_2_unicode_compatible
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class ErrorList(UserList):
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class ErrorList(UserList, list):
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"""
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A collection of errors that knows how to display itself in various formats.
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"""
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@ -15,6 +15,7 @@ from django.forms import (
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NullBooleanField, PasswordInput, RadioSelect, Select, SplitDateTimeField,
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Textarea, TextInput, ValidationError, widgets,
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)
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from django.forms.utils import ErrorList
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from django.http import QueryDict
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from django.template import Template, Context
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from django.test import TestCase
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@ -2069,3 +2070,27 @@ class FormsTestCase(TestCase):
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'__all__': [{'code': 'secret', 'message': 'Non-field error.'}]
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}
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self.assertEqual(errors, control)
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def test_error_list(self):
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e = ErrorList()
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e.append('Foo')
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e.append(ValidationError('Foo%(bar)s', code='foobar', params={'bar': 'bar'}))
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self.assertTrue(isinstance(e, list))
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self.assertIn('Foo', e)
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self.assertIn('Foo', forms.ValidationError(e))
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self.assertEqual(
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e.as_text(),
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'* Foo\n* Foobar'
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)
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self.assertEqual(
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e.as_ul(),
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'<ul class="errorlist"><li>Foo</li><li>Foobar</li></ul>'
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)
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self.assertEqual(
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json.loads(e.as_json()),
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[{"message": "Foo", "code": ""}, {"message": "Foobar", "code": "foobar"}]
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)
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