def run_fetch_tile(self, status, *urls):
"""
Mock aiohttp request and response for `fetch_tile` coroutine and
run the coroutine.
The `status` parameter is HTTP error code, but can be exception as
well. If exception, then it is raised during request.
:param status: HTTP error code (i.e. 200) or an exception.
:param urls: Collection of urls.
"""
@asyncio.coroutine
def mock_read_and_close(*args, **kwargs):
return "image"
@asyncio.coroutine
def mock_request(*args, **kwargs):
if isinstance(status, Exception):
raise status
response = mock.MagicMock()
response.status = status
response.read_and_close = mock_read_and_close
return response
with mock.patch.object(aiohttp, "request", mock_request) as request:
coros = (fetch_tile(u) for u in urls)
task = asyncio.gather(*coros, return_exceptions=True)
loop = asyncio.get_event_loop()
result = loop.run_until_complete(task)
yield result
def run_fetch_tile(self, status, *urls):
"""
Mock `urllib.request.urlopen` call and run `fetch_tile` function.
The `status` parameter is HTTP error code, but can be exception as
well. If exception, then it is raised during request.
:param status: HTTP error code (i.e. 200) or an exception.
:param urls: Collection of urls.
"""
response = mock.MagicMock()
response.read.return_value = "image"
response.status = status
with mock.patch.object(urllib.request, "Request") as _, mock.patch.object(urllib.request, "urlopen") as f:
if isinstance(status, Exception):
f.side_effect = status
else:
f.return_value = response
result = [fetch_tile(u) for u in urls]
yield result