async def test_validate__invalid(self):
field = fields.String()
with self.assertRaises(exceptions.ValidationError) as context:
await field.validate(10)
self.assertEqual(context.exception.error,
fields.String.errors['invalid'])
async def test_validate__max_length(self):
field = fields.String(max_length=3, default='test')
with self.assertRaises(exceptions.ValidationError) as context:
await field.validate(None)
self.assertEqual(context.exception.error,
fields.String.errors['max_length'].format(field))
async def test_validate(self):
field = fields.String()
self.assertEqual('Test', await field.validate('Test'))
async def test_serialize__none(self):
field = fields.String()
self.assertEqual(None, await field.serialize(None))