django-rest-framework/tests/test_urlpatterns.py

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from __future__ import unicode_literals
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import unittest
from collections import namedtuple
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from django.conf.urls import include, url
from django.test import TestCase
from django.urls import Resolver404
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from rest_framework.compat import make_url_resolver, path, re_path
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from rest_framework.test import APIRequestFactory
from rest_framework.urlpatterns import format_suffix_patterns
# A container class for test paths for the test case
URLTestPath = namedtuple('URLTestPath', ['path', 'args', 'kwargs'])
def dummy_view(request, *args, **kwargs):
pass
class FormatSuffixTests(TestCase):
"""
Tests `format_suffix_patterns` against different URLPatterns to ensure the
URLs still resolve properly, including any captured parameters.
"""
def _resolve_urlpatterns(self, urlpatterns, test_paths, allowed=None):
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factory = APIRequestFactory()
try:
urlpatterns = format_suffix_patterns(urlpatterns, allowed=allowed)
except Exception:
self.fail("Failed to apply `format_suffix_patterns` on the supplied urlpatterns")
resolver = make_url_resolver(r'^/', urlpatterns)
for test_path in test_paths:
try:
test_path, expected_resolved = test_path
except (TypeError, ValueError):
expected_resolved = True
request = factory.get(test_path.path)
try:
callback, callback_args, callback_kwargs = resolver.resolve(request.path_info)
except Resolver404:
callback, callback_args, callback_kwargs = (None, None, None)
if expected_resolved:
raise
except Exception:
self.fail("Failed to resolve URL: %s" % request.path_info)
if not expected_resolved:
assert callback is None
continue
assert callback_args == test_path.args
assert callback_kwargs == test_path.kwargs
def _test_trailing_slash(self, urlpatterns):
test_paths = [
(URLTestPath('/test.api', (), {'format': 'api'}), True),
(URLTestPath('/test/.api', (), {'format': 'api'}), False),
(URLTestPath('/test.api/', (), {'format': 'api'}), True),
]
self._resolve_urlpatterns(urlpatterns, test_paths)
def test_trailing_slash(self):
urlpatterns = [
url(r'^test/$', dummy_view),
]
self._test_trailing_slash(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_trailing_slash_django2(self):
urlpatterns = [
path('test/', dummy_view),
]
self._test_trailing_slash(urlpatterns)
def _test_format_suffix(self, urlpatterns):
test_paths = [
URLTestPath('/test', (), {}),
URLTestPath('/test.api', (), {'format': 'api'}),
URLTestPath('/test.asdf', (), {'format': 'asdf'}),
]
self._resolve_urlpatterns(urlpatterns, test_paths)
def test_format_suffix(self):
urlpatterns = [
url(r'^test$', dummy_view),
]
self._test_format_suffix(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_format_suffix_django2(self):
urlpatterns = [
path('test', dummy_view),
]
self._test_format_suffix(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_format_suffix_django2_args(self):
urlpatterns = [
path('convtest/<int:pk>', dummy_view),
re_path(r'^retest/(?P<pk>[0-9]+)$', dummy_view),
]
test_paths = [
URLTestPath('/convtest/42', (), {'pk': 42}),
URLTestPath('/convtest/42.api', (), {'pk': 42, 'format': 'api'}),
URLTestPath('/convtest/42.asdf', (), {'pk': 42, 'format': 'asdf'}),
URLTestPath('/retest/42', (), {'pk': '42'}),
URLTestPath('/retest/42.api', (), {'pk': '42', 'format': 'api'}),
URLTestPath('/retest/42.asdf', (), {'pk': '42', 'format': 'asdf'}),
]
self._resolve_urlpatterns(urlpatterns, test_paths)
def _test_default_args(self, urlpatterns):
test_paths = [
URLTestPath('/test', (), {'foo': 'bar', }),
URLTestPath('/test.api', (), {'foo': 'bar', 'format': 'api'}),
URLTestPath('/test.asdf', (), {'foo': 'bar', 'format': 'asdf'}),
]
self._resolve_urlpatterns(urlpatterns, test_paths)
def test_default_args(self):
urlpatterns = [
url(r'^test$', dummy_view, {'foo': 'bar'}),
]
self._test_default_args(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_default_args_django2(self):
urlpatterns = [
path('test', dummy_view, {'foo': 'bar'}),
]
self._test_default_args(urlpatterns)
def _test_included_urls(self, urlpatterns):
test_paths = [
URLTestPath('/test/path', (), {'foo': 'bar', }),
URLTestPath('/test/path.api', (), {'foo': 'bar', 'format': 'api'}),
URLTestPath('/test/path.asdf', (), {'foo': 'bar', 'format': 'asdf'}),
]
self._resolve_urlpatterns(urlpatterns, test_paths)
def test_included_urls(self):
nested_patterns = [
url(r'^path$', dummy_view)
]
urlpatterns = [
url(r'^test/', include(nested_patterns), {'foo': 'bar'}),
]
self._test_included_urls(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_included_urls_django2(self):
nested_patterns = [
path('path', dummy_view)
]
urlpatterns = [
path('test/', include(nested_patterns), {'foo': 'bar'}),
]
self._test_included_urls(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_included_urls_django2_mixed(self):
nested_patterns = [
path('path', dummy_view)
]
urlpatterns = [
url('^test/', include(nested_patterns), {'foo': 'bar'}),
]
self._test_included_urls(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_included_urls_django2_mixed_args(self):
nested_patterns = [
path('path/<int:child>', dummy_view),
url('^url/(?P<child>[0-9]+)$', dummy_view)
]
urlpatterns = [
url('^purl/(?P<parent>[0-9]+)/', include(nested_patterns), {'foo': 'bar'}),
path('ppath/<int:parent>/', include(nested_patterns), {'foo': 'bar'}),
]
test_paths = [
# parent url() nesting child path()
URLTestPath('/purl/87/path/42', (), {'parent': '87', 'child': 42, 'foo': 'bar', }),
URLTestPath('/purl/87/path/42.api', (), {'parent': '87', 'child': 42, 'foo': 'bar', 'format': 'api'}),
URLTestPath('/purl/87/path/42.asdf', (), {'parent': '87', 'child': 42, 'foo': 'bar', 'format': 'asdf'}),
# parent path() nesting child url()
URLTestPath('/ppath/87/url/42', (), {'parent': 87, 'child': '42', 'foo': 'bar', }),
URLTestPath('/ppath/87/url/42.api', (), {'parent': 87, 'child': '42', 'foo': 'bar', 'format': 'api'}),
URLTestPath('/ppath/87/url/42.asdf', (), {'parent': 87, 'child': '42', 'foo': 'bar', 'format': 'asdf'}),
# parent path() nesting child path()
URLTestPath('/ppath/87/path/42', (), {'parent': 87, 'child': 42, 'foo': 'bar', }),
URLTestPath('/ppath/87/path/42.api', (), {'parent': 87, 'child': 42, 'foo': 'bar', 'format': 'api'}),
URLTestPath('/ppath/87/path/42.asdf', (), {'parent': 87, 'child': 42, 'foo': 'bar', 'format': 'asdf'}),
# parent url() nesting child url()
URLTestPath('/purl/87/url/42', (), {'parent': '87', 'child': '42', 'foo': 'bar', }),
URLTestPath('/purl/87/url/42.api', (), {'parent': '87', 'child': '42', 'foo': 'bar', 'format': 'api'}),
URLTestPath('/purl/87/url/42.asdf', (), {'parent': '87', 'child': '42', 'foo': 'bar', 'format': 'asdf'}),
]
self._resolve_urlpatterns(urlpatterns, test_paths)
def _test_allowed_formats(self, urlpatterns):
allowed_formats = ['good', 'ugly']
test_paths = [
(URLTestPath('/test.good/', (), {'format': 'good'}), True),
(URLTestPath('/test.bad', (), {}), False),
(URLTestPath('/test.ugly', (), {'format': 'ugly'}), True),
]
self._resolve_urlpatterns(urlpatterns, test_paths, allowed=allowed_formats)
def test_allowed_formats(self):
urlpatterns = [
url('^test$', dummy_view),
]
self._test_allowed_formats(urlpatterns)
@unittest.skipUnless(path, 'needs Django 2')
def test_allowed_formats_django2(self):
urlpatterns = [
path('test', dummy_view),
]
self._test_allowed_formats(urlpatterns)