def test_response(self):
promise = Promise()
self.assertFalse(promise.done(), 'promise is not ready')
response = Response(promise)
self.assertFalse(response.done(), 'response is not ready')
promise.fulfill(httplib2.Response({'status': 200,}), 'hello world')
self.assertTrue(promise.done(), 'promise is ready')
self.assertTrue(response.done(), 'response is ready')
# wait doesn't block
response.wait()
self.assertTrue('status' in response, 'status missing')
self.assertEqual(response['status'], 200, 'unexpected status item')
self.assertEqual(response.status, 200, 'unexpected status attr')
self.assertEqual(response.keys(), ['status'], 'unexpected keys')
self.assertEqual(response.values(), [200], 'unexpected values')
self.assertEqual(response.items(), [('status', 200)], 'unexpected values')
self.assertEqual(len(response), 1, 'unexpected len')
self.assertTrue(iter(response), 'iter failed')
response['status'] = 304
self.assertEqual(response['status'], 304,
'unexpected status item after set')
response.status = 404
self.assertEqual(response.status, 404,
'unexpected status attr after set')
del response['status']
self.assertFalse('status' in response, 'status item not gone')
def test_response(self):
promise = Promise()
self.assertFalse(promise.done(), 'promise is not ready')
response = Response(promise)
self.assertFalse(response.done(), 'response is not ready')
promise.fulfill(httplib2.Response({
'status': 200,
}), 'hello world')
self.assertTrue(promise.done(), 'promise is ready')
self.assertTrue(response.done(), 'response is ready')
# wait doesn't block
response.wait()
self.assertTrue('status' in response, 'status missing')
self.assertEqual(response['status'], 200, 'unexpected status item')
self.assertEqual(response.status, 200, 'unexpected status attr')
self.assertEqual(response.keys(), ['status'], 'unexpected keys')
self.assertEqual(response.values(), [200], 'unexpected values')
self.assertEqual(response.items(), [('status', 200)],
'unexpected values')
self.assertEqual(len(response), 1, 'unexpected len')
self.assertTrue(iter(response), 'iter failed')
response['status'] = 304
self.assertEqual(response['status'], 304,
'unexpected status item after set')
response.status = 404
self.assertEqual(response.status, 404,
'unexpected status attr after set')
del response['status']
self.assertFalse('status' in response, 'status item not gone')
def test_callback(self):
def callback(promise):
promise.called = True
promise = Promise(callback)
promise.fulfill(42, 43)
self.assertEqual(promise.get_response(), 42)
self.assertEqual(promise.get_content(), 43)
self.assertTrue(promise.called)
def test_set_and_flag(self):
promise = Promise()
self.assertFalse(promise.done(), 'promise does not start done')
delay = 0.1
WaitAndSet(promise, 42, 43, delay).start()
start = datetime.now()
self.assertFalse(promise.done(), 'promise still not done')
self.assertEqual(promise.get_response(), 42, 'expected response')
self.assertEqual(promise.get_content(), 43, 'expected content')
duration = datetime.now() - start
min = timedelta(seconds=delay - 0.1)
max = timedelta(seconds=delay + 0.1)
self.assertTrue(min < duration and duration < max,
'took around 1s to get response and content')
self.assertTrue(promise.done(), 'promise now done')
def test_callback_error_handling(self):
class BooException(Exception):
pass
def failing_callback(promise):
raise BooException('hoo!')
promise = Promise(failing_callback)
promise.fulfill(42, 43)
self.assertIsInstance(promise.exception, BooException)
self.assertRaises(BooException, promise.get_response)
self.assertRaises(BooException, promise.get_content)
class HooException(Exception):
pass
e = HooException('blah!')
promise.fulfill(43, 44, (e.__class__, e, None))
self.assertIsInstance(promise.exception, HooException)
self.assertRaises(HooException, promise.get_response)
self.assertRaises(HooException, promise.get_content)
def test_done(self):
promise = Promise()
self.assertFalse(promise.done(), 'promise does not start done')
promise.fulfill(42, 43)
self.assertTrue(promise.done(),
'promise is done after call to fulfill')
def test_repr(self):
promise = Promise()
self.assertTrue(str(promise))
promise.fulfill(42, 43)
self.assertTrue(str(promise))
