167 lines
4.7 KiB
Python
167 lines
4.7 KiB
Python
from __future__ import unicode_literals
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from django.conf.urls import url
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from django.core.exceptions import ImproperlyConfigured
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from django.test import TestCase
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from django.utils import six
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import rest_framework.utils.model_meta
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from rest_framework.utils.breadcrumbs import get_breadcrumbs
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from rest_framework.utils.model_meta import _resolve_model
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from rest_framework.views import APIView
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from tests.models import BasicModel
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class Root(APIView):
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pass
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class ResourceRoot(APIView):
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pass
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class ResourceInstance(APIView):
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pass
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class NestedResourceRoot(APIView):
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pass
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class NestedResourceInstance(APIView):
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pass
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urlpatterns = [
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url(r'^$', Root.as_view()),
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url(r'^resource/$', ResourceRoot.as_view()),
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url(r'^resource/(?P<key>[0-9]+)$', ResourceInstance.as_view()),
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url(r'^resource/(?P<key>[0-9]+)/$', NestedResourceRoot.as_view()),
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url(r'^resource/(?P<key>[0-9]+)/(?P<other>[A-Za-z]+)$', NestedResourceInstance.as_view()),
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]
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class BreadcrumbTests(TestCase):
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"""
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Tests the breadcrumb functionality used by the HTML renderer.
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"""
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urls = 'tests.test_utils'
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def test_root_breadcrumbs(self):
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url = '/'
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self.assertEqual(
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get_breadcrumbs(url),
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[('Root', '/')]
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)
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def test_resource_root_breadcrumbs(self):
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url = '/resource/'
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self.assertEqual(
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get_breadcrumbs(url),
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[
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('Root', '/'),
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('Resource Root', '/resource/')
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]
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)
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def test_resource_instance_breadcrumbs(self):
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url = '/resource/123'
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self.assertEqual(
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get_breadcrumbs(url),
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[
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('Root', '/'),
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('Resource Root', '/resource/'),
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('Resource Instance', '/resource/123')
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]
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)
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def test_nested_resource_breadcrumbs(self):
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url = '/resource/123/'
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self.assertEqual(
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get_breadcrumbs(url),
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[
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('Root', '/'),
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('Resource Root', '/resource/'),
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('Resource Instance', '/resource/123'),
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('Nested Resource Root', '/resource/123/')
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]
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)
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def test_nested_resource_instance_breadcrumbs(self):
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url = '/resource/123/abc'
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self.assertEqual(
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get_breadcrumbs(url),
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[
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('Root', '/'),
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('Resource Root', '/resource/'),
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('Resource Instance', '/resource/123'),
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('Nested Resource Root', '/resource/123/'),
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('Nested Resource Instance', '/resource/123/abc')
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]
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)
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def test_broken_url_breadcrumbs_handled_gracefully(self):
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url = '/foobar'
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self.assertEqual(
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get_breadcrumbs(url),
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[('Root', '/')]
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)
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class ResolveModelTests(TestCase):
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"""
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`_resolve_model` should return a Django model class given the
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provided argument is a Django model class itself, or a properly
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formatted string representation of one.
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"""
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def test_resolve_django_model(self):
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resolved_model = _resolve_model(BasicModel)
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self.assertEqual(resolved_model, BasicModel)
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def test_resolve_string_representation(self):
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resolved_model = _resolve_model('tests.BasicModel')
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self.assertEqual(resolved_model, BasicModel)
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def test_resolve_unicode_representation(self):
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resolved_model = _resolve_model(six.text_type('tests.BasicModel'))
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self.assertEqual(resolved_model, BasicModel)
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def test_resolve_non_django_model(self):
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with self.assertRaises(ValueError):
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_resolve_model(TestCase)
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def test_resolve_improper_string_representation(self):
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with self.assertRaises(ValueError):
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_resolve_model('BasicModel')
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class ResolveModelWithPatchedDjangoTests(TestCase):
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"""
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Test coverage for when Django's `get_model` returns `None`.
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Under certain circumstances Django may return `None` with `get_model`:
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http://git.io/get-model-source
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It usually happens with circular imports so it is important that DRF
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excepts early, otherwise fault happens downstream and is much more
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difficult to debug.
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"""
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def setUp(self):
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"""Monkeypatch get_model."""
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self.get_model = rest_framework.utils.model_meta.apps.get_model
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def get_model(app_label, model_name):
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return None
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rest_framework.utils.model_meta.apps.get_model = get_model
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def tearDown(self):
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"""Revert monkeypatching."""
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rest_framework.utils.model_meta.apps.get_model = self.get_model
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def test_blows_up_if_model_does_not_resolve(self):
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with self.assertRaises(ImproperlyConfigured):
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_resolve_model('tests.BasicModel')
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