def test_field_allow_none_error_message(self):
field = Field('name', String(), required=False, allow_none=False)
error = None
try:
field.is_valid(None)
except ValidationError as e:
error = e.message
self.assertEqual(error, 'This field can not be None')
def test_non_required_field_and_allow_none(self):
"""ensure that a non required field that does not allow null values
raises an error when validating None
"""
field = Field('name', String(), required=False, allow_none=False)
with self.assertRaises(ValidationError):
field.is_valid(None)
def test_required_validation_error_message(self):
field = Field('name', String())
error = None
try:
field.is_valid(None)
except ValidationError as e:
error = e.message
self.assertEqual(error, 'This is a required field')
def test_extra_validators_run(self):
mock_validator_1 = mock.MagicMock()
mock_validator_2 = mock.MagicMock()
mock_validator_3 = mock.MagicMock()
validators = [mock_validator_1, mock_validator_2, mock_validator_3]
field = Field('name', String(), extra_validators=validators)
field.is_valid('string')
self.assertTrue(mock_validator_1.called)
self.assertTrue(mock_validator_2.called)
self.assertTrue(mock_validator_3.called)
def test_field_type_validate_method_called(self):
"""ensure that after a field has run validation against required etc,
it calls the validate method of the provided field type
"""
mocked = mock.MagicMock()
class MyValidateType(String):
def validate(self, value):
mocked()
return super(MyValidateType, self).validate(value)
field = Field('name', MyValidateType())
field.is_valid('string')
self.assertTrue(mocked.called)
def test_read_only_field_is_valid_when_required_value_is_none(self):
"""ensure a read only field is always considered valid
"""
field = Field('name', String(), required=True, read_only=True)
self.assertTrue(field.is_valid(None))
def test_required_field_raises_error_when_value_is_none(self):
field = Field('name', String())
with self.assertRaises(ValidationError):
field.is_valid(None)