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import json
import falcon
import falcon.testing as testing
def validate_output(req, resp):
raise falcon.HTTPError(falcon.HTTP_723, title=None)
def serialize_body(req, resp):
body = resp.body
if body is not None:
resp.body = json.dumps(body)
else:
resp.body = 'Nothing to see here. Move along.'
def fluffiness(req, resp):
resp.body = 'fluffy'
def cuteness(req, resp):
if resp.body == 'fluffy':
resp.body += ' and cute'
class WrappedRespondersResource(object):
@falcon.after(serialize_body)
@falcon.after(validate_output)
def on_get(self, req, resp):
self.req = req
self.resp = resp
@falcon.after(serialize_body)
def on_put(self, req, resp):
self.req = req
self.resp = resp
resp.body = {'animal': 'falcon'}
@falcon.after(cuteness)
@falcon.after(fluffiness)
class WrappedClassResource(object):
# Test that the decorator skips non-callables
on_post = False
def __init__(self):
# Test that the decorator skips non-callables
self.on_patch = []
def on_get(self, req, resp):
self.req = req
self.resp = resp
def on_head(self, req, resp):
self.req = req
self.resp = resp
class ZooResource(object):
def on_get(self, req, resp):
self.resp = resp
class SingleResource(object):
def on_options(self, req, resp):
resp.status = falcon.HTTP_501
class TestHooks(testing.TestBase):
def before(self):
self.resource = WrappedRespondersResource()
self.api.add_route(self.test_route, self.resource)
self.wrapped_resource = WrappedClassResource()
self.api.add_route('/wrapped', self.wrapped_resource)
def test_global_hook(self):
self.assertRaises(TypeError, falcon.API, None, {})
self.assertRaises(TypeError, falcon.API, None, 0)
self.api = falcon.API(after=fluffiness)
zoo_resource = ZooResource()
self.api.add_route(self.test_route, zoo_resource)
self.simulate_request(self.test_route)
self.assertEqual(b'fluffy', zoo_resource.resp.body_encoded)
# hook does not affect the default on_options
body = self.simulate_request(self.test_route, method='OPTIONS')
self.assertEqual(falcon.HTTP_204, self.srmock.status)
self.assertEqual([], body)
def test_multiple_global_hook(self):
self.api = falcon.API(after=[fluffiness, cuteness])
zoo_resource = ZooResource()
self.api.add_route(self.test_route, zoo_resource)
self.simulate_request(self.test_route)
self.assertEqual(b'fluffy and cute', zoo_resource.resp.body_encoded)
def test_output_validator(self):
self.simulate_request(self.test_route)
self.assertEqual(falcon.HTTP_723, self.srmock.status)
self.assertEqual(None, self.resource.resp.body_encoded)
def test_serializer(self):
self.simulate_request(self.test_route, method='PUT')
actual_body = self.resource.resp.body_encoded
self.assertEqual(b'{"animal": "falcon"}', actual_body)
def test_wrapped_resource(self):
expected = b'fluffy and cute'
self.simulate_request('/wrapped')
self.assertEqual(falcon.HTTP_200, self.srmock.status)
self.assertEqual(expected, self.wrapped_resource.resp.body_encoded)
self.simulate_request('/wrapped', method='HEAD')
self.assertEqual(falcon.HTTP_200, self.srmock.status)
self.simulate_request('/wrapped', method='POST')
self.assertEqual(falcon.HTTP_405, self.srmock.status)
self.simulate_request('/wrapped', method='PATCH')
self.assertEqual(falcon.HTTP_405, self.srmock.status)
# decorator does not affect the default on_options
body = self.simulate_request('/wrapped', method='OPTIONS')
self.assertEqual(falcon.HTTP_204, self.srmock.status)
self.assertEqual([], body)
def test_customized_options(self):
self.api = falcon.API(after=fluffiness)
self.api.add_route('/one', SingleResource())
body = self.simulate_request('/one', method='OPTIONS')
self.assertEqual(falcon.HTTP_501, self.srmock.status)
self.assertEqual([b'fluffy'], body)
self.assertNotIn('allow', self.srmock.headers_dict)
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