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from twisted.internet import defer
from twisted.trial.unittest import SynchronousTestCase
from twisted.web import http
from treq.testing import StubTreq, HasHeaders
from treq.testing import RequestSequence, StringStubbingResource
@defer.inlineCallbacks
def make_a_request(treq):
"""
Make a request using treq.
"""
response = yield treq.get('http://an.example/foo', params={'a': 'b'},
headers={b'Accept': b'application/json'})
if response.code == http.OK:
result = yield response.json()
else:
message = yield response.text()
raise Exception("Got an error from the server: {}".format(message))
defer.returnValue(result)
class MakeARequestTests(SynchronousTestCase):
"""
Test :func:`make_a_request()` using :mod:`treq.testing.RequestSequence`.
"""
def test_200_ok(self):
"""On a 200 response, return the response's JSON."""
req_seq = RequestSequence([
((b'get', 'http://an.example/foo', {b'a': [b'b']},
HasHeaders({'Accept': ['application/json']}), b''),
(http.OK, {b'Content-Type': b'application/json'}, b'{"status": "ok"}'))
])
treq = StubTreq(StringStubbingResource(req_seq))
with req_seq.consume(self.fail):
result = self.successResultOf(make_a_request(treq))
self.assertEqual({"status": "ok"}, result)
def test_418_teapot(self):
"""On an unexpected response code, raise an exception"""
req_seq = RequestSequence([
((b'get', 'http://an.example/foo', {b'a': [b'b']},
HasHeaders({'Accept': ['application/json']}), b''),
(418, {b'Content-Type': b'text/plain'}, b"I'm a teapot!"))
])
treq = StubTreq(StringStubbingResource(req_seq))
with req_seq.consume(self.fail):
failure = self.failureResultOf(make_a_request(treq))
self.assertEqual(u"Got an error from the server: I'm a teapot!",
failure.getErrorMessage())
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