mirror of
https://github.com/django/django.git
synced 2025-10-31 09:41:08 +00:00
117 lines
4.2 KiB
Python
117 lines
4.2 KiB
Python
import json
|
|
import uuid
|
|
|
|
from django.core.serializers.json import DjangoJSONEncoder
|
|
from django.forms import (
|
|
CharField, Form, JSONField, Textarea, TextInput, ValidationError,
|
|
)
|
|
from django.test import SimpleTestCase
|
|
|
|
|
|
class JSONFieldTest(SimpleTestCase):
|
|
def test_valid(self):
|
|
field = JSONField()
|
|
value = field.clean('{"a": "b"}')
|
|
self.assertEqual(value, {'a': 'b'})
|
|
|
|
def test_valid_empty(self):
|
|
field = JSONField(required=False)
|
|
self.assertIsNone(field.clean(''))
|
|
self.assertIsNone(field.clean(None))
|
|
|
|
def test_invalid(self):
|
|
field = JSONField()
|
|
with self.assertRaisesMessage(ValidationError, 'Enter a valid JSON.'):
|
|
field.clean('{some badly formed: json}')
|
|
|
|
def test_prepare_value(self):
|
|
field = JSONField()
|
|
self.assertEqual(field.prepare_value({'a': 'b'}), '{"a": "b"}')
|
|
self.assertEqual(field.prepare_value(None), 'null')
|
|
self.assertEqual(field.prepare_value('foo'), '"foo"')
|
|
self.assertEqual(field.prepare_value('你好，世界'), '"你好，世界"')
|
|
self.assertEqual(field.prepare_value({'a': '😀🐱'}), '{"a": "😀🐱"}')
|
|
self.assertEqual(
|
|
field.prepare_value(["你好，世界", "jaźń"]),
|
|
'["你好，世界", "jaźń"]',
|
|
)
|
|
|
|
def test_widget(self):
|
|
field = JSONField()
|
|
self.assertIsInstance(field.widget, Textarea)
|
|
|
|
def test_custom_widget_kwarg(self):
|
|
field = JSONField(widget=TextInput)
|
|
self.assertIsInstance(field.widget, TextInput)
|
|
|
|
def test_custom_widget_attribute(self):
|
|
"""The widget can be overridden with an attribute."""
|
|
class CustomJSONField(JSONField):
|
|
widget = TextInput
|
|
|
|
field = CustomJSONField()
|
|
self.assertIsInstance(field.widget, TextInput)
|
|
|
|
def test_converted_value(self):
|
|
field = JSONField(required=False)
|
|
tests = [
|
|
'["a", "b", "c"]',
|
|
'{"a": 1, "b": 2}',
|
|
'1',
|
|
'1.5',
|
|
'"foo"',
|
|
'true',
|
|
'false',
|
|
'null',
|
|
]
|
|
for json_string in tests:
|
|
with self.subTest(json_string=json_string):
|
|
val = field.clean(json_string)
|
|
self.assertEqual(field.clean(val), val)
|
|
|
|
def test_has_changed(self):
|
|
field = JSONField()
|
|
self.assertIs(field.has_changed({'a': True}, '{"a": 1}'), True)
|
|
self.assertIs(field.has_changed({'a': 1, 'b': 2}, '{"b": 2, "a": 1}'), False)
|
|
|
|
def test_custom_encoder_decoder(self):
|
|
class CustomDecoder(json.JSONDecoder):
|
|
def __init__(self, object_hook=None, *args, **kwargs):
|
|
return super().__init__(object_hook=self.as_uuid, *args, **kwargs)
|
|
|
|
def as_uuid(self, dct):
|
|
if 'uuid' in dct:
|
|
dct['uuid'] = uuid.UUID(dct['uuid'])
|
|
return dct
|
|
|
|
value = {'uuid': uuid.UUID('{c141e152-6550-4172-a784-05448d98204b}')}
|
|
encoded_value = '{"uuid": "c141e152-6550-4172-a784-05448d98204b"}'
|
|
field = JSONField(encoder=DjangoJSONEncoder, decoder=CustomDecoder)
|
|
self.assertEqual(field.prepare_value(value), encoded_value)
|
|
self.assertEqual(field.clean(encoded_value), value)
|
|
|
|
def test_formfield_disabled(self):
|
|
class JSONForm(Form):
|
|
json_field = JSONField(disabled=True)
|
|
|
|
form = JSONForm({'json_field': '["bar"]'}, initial={'json_field': ['foo']})
|
|
self.assertIn('["foo"]</textarea>', form.as_p())
|
|
|
|
def test_redisplay_wrong_input(self):
|
|
"""
|
|
Displaying a bound form (typically due to invalid input). The form
|
|
should not overquote JSONField inputs.
|
|
"""
|
|
class JSONForm(Form):
|
|
name = CharField(max_length=2)
|
|
json_field = JSONField()
|
|
|
|
# JSONField input is valid, name is too long.
|
|
form = JSONForm({'name': 'xyz', 'json_field': '["foo"]'})
|
|
self.assertNotIn('json_field', form.errors)
|
|
self.assertIn('["foo"]</textarea>', form.as_p())
|
|
# Invalid JSONField.
|
|
form = JSONForm({'name': 'xy', 'json_field': '{"foo"}'})
|
|
self.assertEqual(form.errors['json_field'], ['Enter a valid JSON.'])
|
|
self.assertIn('{"foo"}</textarea>', form.as_p())
|