On 08/04/2013 10:25 AM, Benjamin BERTRAND wrote:
Hi,
I'm trying to write a simple gateway to receive messages using a specific
protocol and publish/store them using txredis.
I wrote a small example that seems to work.
But the small test I wrote fails:
$ trial gateway/test
gateway.test.test_example
GatewayServiceTestCase
test_messageReceived ... [ERROR]
===============================================================================
[ERROR]
Traceback (most recent call last):
Failure: twisted.internet.error.ConnectionDone: Connection was closed cleanly.
gateway.test.test_example.GatewayServiceTestCase.test_messageReceived
-------------------------------------------------------------------------------
Ran 1 tests in 0.007s
As I understand, the connection to the redis server is lost during the test.
I actually managed to get the test to pass by adding some inlineCallbacks
decorator to my messageReceived and lineReceived methods.
But I don't really understand why that would be needed.
Could someone explain what is happening?
I suspect the inlineCallbacks is irrelevant (and not the way to solve this).
At a guess, what is happening is that something is logging the
connection being lost (perhaps the redis library?). Logging errors in a
unit test makes trial consider that test to have failed: logging an
error suggests something has gone wrong. You can tell trial to expect a
specific error to be logged in your test:
https://twistedmatrix.com/documents/current/core/howto/trial.html#auto11
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