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Unittest - Try to avoid racing conditions failures when capturing stdout/stderr

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* The new unblocking strategy for subprocesses involves timeouts and
waiting periods. If the timeout is too short (or absent) tests may show
intermittent failure.
* Increasing the timeout may make tests a bit slower but more reliable.
This commit is contained in:
Renato Alves 2014-07-15 03:22:28 +01:00
parent 9b6b1cf5f8
commit 1f279ffde8
1 changed files with 6 additions and 2 deletions
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8
test/basetest/utils.py
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@ -62,12 +62,16 @@ def _get_output(proc, input):
proc.send_signal(signal.SIGABRT)
exit = wait_process(proc)
# NOTE Increase this value if tests fail with None being received as
# stdout/stderr instead of the expected content
timeout = 0.1 # seconds
try:
out = outq.get_nowait()
out = outq.get(timeout=timeout)
except Empty:
out = None
try:
err = errq.get_nowait()
err = errq.get(timeout=timeout)
except Empty:
err = None