django-rest-framework/tests/test_exceptions.py

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from django.test import RequestFactory, TestCase
from django.utils import translation
from django.utils.translation import gettext_lazy as _
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from rest_framework.exceptions import (
APIException, ErrorDetail, Throttled, _get_error_details, bad_request,
server_error
)
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class ExceptionTestCase(TestCase):
def test_get_error_details(self):
example = "string"
lazy_example = _(example)
assert _get_error_details(lazy_example) == example
assert isinstance(
_get_error_details(lazy_example),
ErrorDetail
)
assert _get_error_details({'nested': lazy_example})['nested'] == example
assert isinstance(
_get_error_details({'nested': lazy_example})['nested'],
ErrorDetail
)
assert _get_error_details([[lazy_example]])[0][0] == example
assert isinstance(
_get_error_details([[lazy_example]])[0][0],
ErrorDetail
)
def test_get_full_details_with_throttling(self):
exception = Throttled()
assert exception.get_full_details() == {
'message': 'Request was throttled.', 'code': 'throttled'}
exception = Throttled(wait=2)
assert exception.get_full_details() == {
'message': 'Request was throttled. Expected available in {} seconds.'.format(2),
'code': 'throttled'}
exception = Throttled(wait=2, detail='Slow down!')
assert exception.get_full_details() == {
'message': 'Slow down! Expected available in {} seconds.'.format(2),
'code': 'throttled'}
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class ErrorDetailTests(TestCase):
def test_eq(self):
assert ErrorDetail('msg') == ErrorDetail('msg')
assert ErrorDetail('msg', 'code') == ErrorDetail('msg', code='code')
assert ErrorDetail('msg') == 'msg'
assert ErrorDetail('msg', 'code') == 'msg'
def test_ne(self):
assert ErrorDetail('msg1') != ErrorDetail('msg2')
assert ErrorDetail('msg') != ErrorDetail('msg', code='invalid')
assert ErrorDetail('msg1') != 'msg2'
assert ErrorDetail('msg1', 'code') != 'msg2'
def test_repr(self):
assert repr(ErrorDetail('msg1')) == \
'ErrorDetail(string={!r}, code=None)'.format('msg1')
assert repr(ErrorDetail('msg1', 'code')) == \
'ErrorDetail(string={!r}, code={!r})'.format('msg1', 'code')
def test_str(self):
assert str(ErrorDetail('msg1')) == 'msg1'
assert str(ErrorDetail('msg1', 'code')) == 'msg1'
def test_hash(self):
assert hash(ErrorDetail('msg')) == hash('msg')
assert hash(ErrorDetail('msg', 'code')) == hash('msg')
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class TranslationTests(TestCase):
@translation.override('fr')
def test_message(self):
# this test largely acts as a sanity test to ensure the translation files are present.
self.assertEqual(_('A server error occurred.'), 'Une erreur du serveur est survenue.')
self.assertEqual(str(APIException()), 'Une erreur du serveur est survenue.')
def test_server_error():
request = RequestFactory().get('/')
response = server_error(request)
assert response.status_code == 500
assert response["content-type"] == 'application/json'
def test_bad_request():
request = RequestFactory().get('/')
exception = Exception('Something went wrong — Not used')
response = bad_request(request, exception)
assert response.status_code == 400
assert response["content-type"] == 'application/json'