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TST: Ensure test_webagg subprocess is terminated #26542

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Merged
oscargus merged 1 commit into from
Aug 31, 2023
Merged

TST: Ensure test_webagg subprocess is terminated #26542

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37 changes: 20 additions & 17 deletions lib/matplotlib/tests/test_backends_interactive.py
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Original file line number Diff line number Diff line change
Expand Up @@ -477,24 +477,27 @@ def test_webagg():
inspect.getsource(_test_interactive_impl)
+ "\n_test_interactive_impl()", "{}"],
env={**os.environ, "MPLBACKEND": "webagg", "SOURCE_DATE_EPOCH": "0"})
url = "http://{}:{}".format(
mpl.rcParams["webagg.address"], mpl.rcParams["webagg.port"])
url = f'http://{mpl.rcParams["webagg.address"]}:{mpl.rcParams["webagg.port"]}'
timeout = time.perf_counter() + _test_timeout
while True:
try:
retcode = proc.poll()
# check that the subprocess for the server is not dead
assert retcode is None
conn = urllib.request.urlopen(url)
break
except urllib.error.URLError:
if time.perf_counter() > timeout:
pytest.fail("Failed to connect to the webagg server.")
else:
continue
conn.close()
proc.send_signal(signal.SIGINT)
assert proc.wait(timeout=_test_timeout) == 0
try:
while True:
try:
retcode = proc.poll()
# check that the subprocess for the server is not dead
assert retcode is None
conn = urllib.request.urlopen(url)
break
except urllib.error.URLError:
if time.perf_counter() > timeout:
pytest.fail("Failed to connect to the webagg server.")
else:
continue
conn.close()
proc.send_signal(signal.SIGINT)
assert proc.wait(timeout=_test_timeout) == 0
finally:
if proc.poll() is None:
proc.kill()


def _lazy_headless():
Expand Down