trial -jN ... fails to report some large test results #11710
Closed
Description
Describe the incorrect behavior you saw
test_renew_lease ... Traceback (most recent call last):
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/internet/defer.py", line 1697, in _inlineCallbacks
result = context.run(gen.send, result)
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/trial/_dist/workerreporter.py", line 261, in addErrorFallible
await addError(
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/trial/_dist/workerreporter.py", line 48, in addError
errorStreamId = await stream(amp, chunk(error, 2 ** 16 - 1))
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/trial/_dist/stream.py", line 98, in stream
await amp.callRemote(StreamWrite, streamId=streamId, data=oneChunk)
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/protocols/amp.py", line 936, in callRemote
return co._doCommand(self)
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/protocols/amp.py", line 1951, in _doCommand
d = proto._sendBoxCommand(
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/protocols/amp.py", line 869, in _sendBoxCommand
box._sendTo(self.boxSender)
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/protocols/amp.py", line 698, in _sendTo
proto.sendBox(self)
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/protocols/amp.py", line 2336, in sendBox
self.transport.write(box.serialize())
File "/Users/distiller/project/venv/lib/python3.10/site-packages/twisted/protocols/amp.py", line 677, in serialize
raise TooLong(False, True, v, k)
twisted.protocols.amp.TooLong:
Describe how to cause this behavior
A test that produces more than 2 ** 16 unicode characters of output with any character that encodes to more than 1 byte will trigger the behavior because disttrial measures unicode length but AMP enforces the length limit against bytes.