# from django import forms # from django.db import models # from django.test import TestCase # from rest_framework.response import ImmediateResponse # from rest_framework.views import View # class TestDisabledValidations(TestCase): # """Tests on FormValidator with validation disabled by setting form to None""" # def test_disabled_form_validator_returns_content_unchanged(self): # """If the view's form attribute is None then FormValidator(view).validate_request(content, None) # should just return the content unmodified.""" # class DisabledFormResource(FormResource): # form = None # class MockView(View): # resource = DisabledFormResource # view = MockView() # content = {'qwerty': 'uiop'} # self.assertEqual(FormResource(view).validate_request(content, None), content) # def test_disabled_form_validator_get_bound_form_returns_none(self): # """If the view's form attribute is None on then # FormValidator(view).get_bound_form(content) should just return None.""" # class DisabledFormResource(FormResource): # form = None # class MockView(View): # resource = DisabledFormResource # view = MockView() # content = {'qwerty': 'uiop'} # self.assertEqual(FormResource(view).get_bound_form(content), None) # def test_disabled_model_form_validator_returns_content_unchanged(self): # """If the view's form is None and does not have a Resource with a model set then # ModelFormValidator(view).validate_request(content, None) should just return the content unmodified.""" # class DisabledModelFormView(View): # resource = ModelResource # view = DisabledModelFormView() # content = {'qwerty': 'uiop'} # self.assertEqual(ModelResource(view).get_bound_form(content), None) # def test_disabled_model_form_validator_get_bound_form_returns_none(self): # """If the form attribute is None on FormValidatorMixin then get_bound_form(content) should just return None.""" # class DisabledModelFormView(View): # resource = ModelResource # view = DisabledModelFormView() # content = {'qwerty': 'uiop'} # self.assertEqual(ModelResource(view).get_bound_form(content), None) # class TestNonFieldErrors(TestCase): # """Tests against form validation errors caused by non-field errors. (eg as might be caused by some custom form validation)""" # def test_validate_failed_due_to_non_field_error_returns_appropriate_message(self): # """If validation fails with a non-field error, ensure the response a non-field error""" # class MockForm(forms.Form): # field1 = forms.CharField(required=False) # field2 = forms.CharField(required=False) # ERROR_TEXT = 'You may not supply both field1 and field2' # def clean(self): # if 'field1' in self.cleaned_data and 'field2' in self.cleaned_data: # raise forms.ValidationError(self.ERROR_TEXT) # return self.cleaned_data # class MockResource(FormResource): # form = MockForm # class MockView(View): # pass # view = MockView() # content = {'field1': 'example1', 'field2': 'example2'} # try: # MockResource(view).validate_request(content, None) # except ImmediateResponse, exc: # response = exc.response # self.assertEqual(response.raw_content, {'errors': [MockForm.ERROR_TEXT]}) # else: # self.fail('ImmediateResponse was not raised') # class TestFormValidation(TestCase): # """Tests which check basic form validation. # Also includes the same set of tests with a ModelFormValidator for which the form has been explicitly set. # (ModelFormValidator should behave as FormValidator if a form is set rather than relying on the default ModelForm)""" # def setUp(self): # class MockForm(forms.Form): # qwerty = forms.CharField(required=True) # class MockFormResource(FormResource): # form = MockForm # class MockModelResource(ModelResource): # form = MockForm # class MockFormView(View): # resource = MockFormResource # class MockModelFormView(View): # resource = MockModelResource # self.MockFormResource = MockFormResource # self.MockModelResource = MockModelResource # self.MockFormView = MockFormView # self.MockModelFormView = MockModelFormView # def validation_returns_content_unchanged_if_already_valid_and_clean(self, validator): # """If the content is already valid and clean then validate(content) should just return the content unmodified.""" # content = {'qwerty': 'uiop'} # self.assertEqual(validator.validate_request(content, None), content) # def validation_failure_raises_response_exception(self, validator): # """If form validation fails a ResourceException 400 (Bad Request) should be raised.""" # content = {} # self.assertRaises(ImmediateResponse, validator.validate_request, content, None) # def validation_does_not_allow_extra_fields_by_default(self, validator): # """If some (otherwise valid) content includes fields that are not in the form then validation should fail. # It might be okay on normal form submission, but for Web APIs we oughta get strict, as it'll help show up # broken clients more easily (eg submitting content with a misnamed field)""" # content = {'qwerty': 'uiop', 'extra': 'extra'} # self.assertRaises(ImmediateResponse, validator.validate_request, content, None) # def validation_allows_extra_fields_if_explicitly_set(self, validator): # """If we include an allowed_extra_fields paramater on _validate, then allow fields with those names.""" # content = {'qwerty': 'uiop', 'extra': 'extra'} # validator._validate(content, None, allowed_extra_fields=('extra',)) # def validation_allows_unknown_fields_if_explicitly_allowed(self, validator): # """If we set ``unknown_form_fields`` on the form resource, then don't # raise errors on unexpected request data""" # content = {'qwerty': 'uiop', 'extra': 'extra'} # validator.allow_unknown_form_fields = True # self.assertEqual({'qwerty': u'uiop'}, # validator.validate_request(content, None), # "Resource didn't accept unknown fields.") # validator.allow_unknown_form_fields = False # def validation_does_not_require_extra_fields_if_explicitly_set(self, validator): # """If we include an allowed_extra_fields paramater on _validate, then do not fail if we do not have fields with those names.""" # content = {'qwerty': 'uiop'} # self.assertEqual(validator._validate(content, None, allowed_extra_fields=('extra',)), content) # def validation_failed_due_to_no_content_returns_appropriate_message(self, validator): # """If validation fails due to no content, ensure the response contains a single non-field error""" # content = {} # try: # validator.validate_request(content, None) # except ImmediateResponse, exc: # response = exc.response # self.assertEqual(response.raw_content, {'field_errors': {'qwerty': ['This field is required.']}}) # else: # self.fail('ResourceException was not raised') # def validation_failed_due_to_field_error_returns_appropriate_message(self, validator): # """If validation fails due to a field error, ensure the response contains a single field error""" # content = {'qwerty': ''} # try: # validator.validate_request(content, None) # except ImmediateResponse, exc: # response = exc.response # self.assertEqual(response.raw_content, {'field_errors': {'qwerty': ['This field is required.']}}) # else: # self.fail('ResourceException was not raised') # def validation_failed_due_to_invalid_field_returns_appropriate_message(self, validator): # """If validation fails due to an invalid field, ensure the response contains a single field error""" # content = {'qwerty': 'uiop', 'extra': 'extra'} # try: # validator.validate_request(content, None) # except ImmediateResponse, exc: # response = exc.response # self.assertEqual(response.raw_content, {'field_errors': {'extra': ['This field does not exist.']}}) # else: # self.fail('ResourceException was not raised') # def validation_failed_due_to_multiple_errors_returns_appropriate_message(self, validator): # """If validation for multiple reasons, ensure the response contains each error""" # content = {'qwerty': '', 'extra': 'extra'} # try: # validator.validate_request(content, None) # except ImmediateResponse, exc: # response = exc.response # self.assertEqual(response.raw_content, {'field_errors': {'qwerty': ['This field is required.'], # 'extra': ['This field does not exist.']}}) # else: # self.fail('ResourceException was not raised') # # Tests on FormResource # def test_form_validation_returns_content_unchanged_if_already_valid_and_clean(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_returns_content_unchanged_if_already_valid_and_clean(validator) # def test_form_validation_failure_raises_response_exception(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_failure_raises_response_exception(validator) # def test_validation_does_not_allow_extra_fields_by_default(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_does_not_allow_extra_fields_by_default(validator) # def test_validation_allows_extra_fields_if_explicitly_set(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_allows_extra_fields_if_explicitly_set(validator) # def test_validation_allows_unknown_fields_if_explicitly_allowed(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_allows_unknown_fields_if_explicitly_allowed(validator) # def test_validation_does_not_require_extra_fields_if_explicitly_set(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_does_not_require_extra_fields_if_explicitly_set(validator) # def test_validation_failed_due_to_no_content_returns_appropriate_message(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_failed_due_to_no_content_returns_appropriate_message(validator) # def test_validation_failed_due_to_field_error_returns_appropriate_message(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_failed_due_to_field_error_returns_appropriate_message(validator) # def test_validation_failed_due_to_invalid_field_returns_appropriate_message(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_failed_due_to_invalid_field_returns_appropriate_message(validator) # def test_validation_failed_due_to_multiple_errors_returns_appropriate_message(self): # validator = self.MockFormResource(self.MockFormView()) # self.validation_failed_due_to_multiple_errors_returns_appropriate_message(validator) # # Same tests on ModelResource # def test_modelform_validation_returns_content_unchanged_if_already_valid_and_clean(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_returns_content_unchanged_if_already_valid_and_clean(validator) # def test_modelform_validation_failure_raises_response_exception(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_failure_raises_response_exception(validator) # def test_modelform_validation_does_not_allow_extra_fields_by_default(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_does_not_allow_extra_fields_by_default(validator) # def test_modelform_validation_allows_extra_fields_if_explicitly_set(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_allows_extra_fields_if_explicitly_set(validator) # def test_modelform_validation_does_not_require_extra_fields_if_explicitly_set(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_does_not_require_extra_fields_if_explicitly_set(validator) # def test_modelform_validation_failed_due_to_no_content_returns_appropriate_message(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_failed_due_to_no_content_returns_appropriate_message(validator) # def test_modelform_validation_failed_due_to_field_error_returns_appropriate_message(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_failed_due_to_field_error_returns_appropriate_message(validator) # def test_modelform_validation_failed_due_to_invalid_field_returns_appropriate_message(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_failed_due_to_invalid_field_returns_appropriate_message(validator) # def test_modelform_validation_failed_due_to_multiple_errors_returns_appropriate_message(self): # validator = self.MockModelResource(self.MockModelFormView()) # self.validation_failed_due_to_multiple_errors_returns_appropriate_message(validator) # class TestModelFormValidator(TestCase): # """Tests specific to ModelFormValidatorMixin""" # def setUp(self): # """Create a validator for a model with two fields and a property.""" # class MockModel(models.Model): # qwerty = models.CharField(max_length=256) # uiop = models.CharField(max_length=256, blank=True) # @property # def read_only(self): # return 'read only' # class MockResource(ModelResource): # model = MockModel # class MockView(View): # resource = MockResource # self.validator = MockResource(MockView) # def test_property_fields_are_allowed_on_model_forms(self): # """Validation on ModelForms may include property fields that exist on the Model to be included in the input.""" # content = {'qwerty': 'example', 'uiop': 'example', 'read_only': 'read only'} # self.assertEqual(self.validator.validate_request(content, None), content) # def test_property_fields_are_not_required_on_model_forms(self): # """Validation on ModelForms does not require property fields that exist on the Model to be included in the input.""" # content = {'qwerty': 'example', 'uiop': 'example'} # self.assertEqual(self.validator.validate_request(content, None), content) # def test_extra_fields_not_allowed_on_model_forms(self): # """If some (otherwise valid) content includes fields that are not in the form then validation should fail. # It might be okay on normal form submission, but for Web APIs we oughta get strict, as it'll help show up # broken clients more easily (eg submitting content with a misnamed field)""" # content = {'qwerty': 'example', 'uiop': 'example', 'read_only': 'read only', 'extra': 'extra'} # self.assertRaises(ImmediateResponse, self.validator.validate_request, content, None) # def test_validate_requires_fields_on_model_forms(self): # """If some (otherwise valid) content includes fields that are not in the form then validation should fail. # It might be okay on normal form submission, but for Web APIs we oughta get strict, as it'll help show up # broken clients more easily (eg submitting content with a misnamed field)""" # content = {'read_only': 'read only'} # self.assertRaises(ImmediateResponse, self.validator.validate_request, content, None) # def test_validate_does_not_require_blankable_fields_on_model_forms(self): # """Test standard ModelForm validation behaviour - fields with blank=True are not required.""" # content = {'qwerty': 'example', 'read_only': 'read only'} # self.validator.validate_request(content, None) # def test_model_form_validator_uses_model_forms(self): # self.assertTrue(isinstance(self.validator.get_bound_form(), forms.ModelForm))