django/tests/regressiontests/templates/response.py

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import os
from django.utils import unittest
from django.test import RequestFactory
from django.conf import settings
import django.template.context
from django.template import Template, Context, RequestContext
from django.template.response import (TemplateResponse, SimpleTemplateResponse,
ContentNotRenderedError)
def test_processor(request):
return {'processors': 'yes'}
test_processor_name = 'regressiontests.templates.response.test_processor'
class BaseTemplateResponseTest(unittest.TestCase):
# tests rely on fact that global context
# processors should only work when RequestContext is used.
def setUp(self):
self.factory = RequestFactory()
self._old_processors = settings.TEMPLATE_CONTEXT_PROCESSORS
self._old_TEMPLATE_DIRS = settings.TEMPLATE_DIRS
settings.TEMPLATE_CONTEXT_PROCESSORS = [test_processor_name]
settings.TEMPLATE_DIRS = (
os.path.join(
os.path.dirname(__file__),
'templates'
),
)
# Force re-evaluation of the contex processor list
django.template.context._standard_context_processors = None
def tearDown(self):
settings.TEMPLATE_DIRS = self._old_TEMPLATE_DIRS
settings.TEMPLATE_CONTEXT_PROCESSORS = self._old_processors
# Force re-evaluation of the contex processor list
django.template.context._standard_context_processors = None
class SimpleTemplateResponseTest(BaseTemplateResponseTest):
def _response(self, template='foo', *args, **kwargs):
return SimpleTemplateResponse(Template(template), *args, **kwargs)
def test_template_resolving(self):
response = SimpleTemplateResponse('first/test.html')
response.render()
self.assertEqual('First template\n', response.content)
templates = ['foo.html', 'second/test.html', 'first/test.html']
response = SimpleTemplateResponse(templates)
response.render()
self.assertEqual('Second template\n', response.content)
response = self._response()
response.render()
self.assertEqual(response.content, 'foo')
def test_explicit_baking(self):
# explicit baking
response = self._response()
self.assertFalse(response.is_rendered)
response.render()
self.assertTrue(response.is_rendered)
def test_render(self):
# response is not re-rendered without the render call
response = self._response().render()
self.assertEqual(response.content, 'foo')
# rebaking doesn't change the rendered content
response.template_name = Template('bar{{ baz }}')
response.render()
self.assertEqual(response.content, 'foo')
# but rendered content can be overridden by manually
# setting content
response.content = 'bar'
self.assertEqual(response.content, 'bar')
def test_iteration_unrendered(self):
# unrendered response raises an exception on iteration
response = self._response()
self.assertFalse(response.is_rendered)
def iteration():
for x in response:
pass
self.assertRaises(ContentNotRenderedError, iteration)
self.assertFalse(response.is_rendered)
def test_iteration_rendered(self):
# iteration works for rendered responses
response = self._response().render()
res = [x for x in response]
self.assertEqual(res, ['foo'])
def test_content_access_unrendered(self):
# unrendered response raises an exception when content is accessed
response = self._response()
self.assertFalse(response.is_rendered)
self.assertRaises(ContentNotRenderedError, lambda: response.content)
self.assertFalse(response.is_rendered)
def test_content_access_rendered(self):
# rendered response content can be accessed
response = self._response().render()
self.assertEqual(response.content, 'foo')
def test_set_content(self):
# content can be overriden
response = self._response()
self.assertFalse(response.is_rendered)
response.content = 'spam'
self.assertTrue(response.is_rendered)
self.assertEqual(response.content, 'spam')
response.content = 'baz'
self.assertEqual(response.content, 'baz')
def test_dict_context(self):
response = self._response('{{ foo }}{{ processors }}',
{'foo': 'bar'})
self.assertEqual(response.context_data, {'foo': 'bar'})
response.render()
self.assertEqual(response.content, 'bar')
def test_context_instance(self):
response = self._response('{{ foo }}{{ processors }}',
Context({'foo': 'bar'}))
self.assertEqual(response.context_data.__class__, Context)
response.render()
self.assertEqual(response.content, 'bar')
def test_kwargs(self):
response = self._response(content_type = 'application/json', status=504)
self.assertEqual(response['content-type'], 'application/json')
self.assertEqual(response.status_code, 504)
def test_args(self):
response = SimpleTemplateResponse('', {}, 'application/json', 504)
self.assertEqual(response['content-type'], 'application/json')
self.assertEqual(response.status_code, 504)
class TemplateResponseTest(BaseTemplateResponseTest):
def _response(self, template='foo', *args, **kwargs):
return TemplateResponse(self.factory.get('/'), Template(template),
*args, **kwargs)
def test_render(self):
response = self._response('{{ foo }}{{ processors }}').render()
self.assertEqual(response.content, 'yes')
def test_render_with_requestcontext(self):
response = self._response('{{ foo }}{{ processors }}',
{'foo': 'bar'}).render()
self.assertEqual(response.content, 'baryes')
def test_render_with_context(self):
response = self._response('{{ foo }}{{ processors }}',
Context({'foo': 'bar'})).render()
self.assertEqual(response.content, 'bar')
def test_kwargs(self):
response = self._response(content_type = 'application/json',
status=504)
self.assertEqual(response['content-type'], 'application/json')
self.assertEqual(response.status_code, 504)
def test_args(self):
response = TemplateResponse(self.factory.get('/'), '', {},
'application/json', 504)
self.assertEqual(response['content-type'], 'application/json')
self.assertEqual(response.status_code, 504)
def test_custom_app(self):
response = self._response('{{ foo }}', current_app="foobar")
rc = response.resolve_context(response.context_data)
self.assertEqual(rc.current_app, 'foobar')