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qa: Fix dormant bug caused by multiple --tmpdir

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We would only modify the parent process' first --tmpdir arg.

Now we tack on an additional --tmpdir after the parent's arguments. Also simplifies the code.

Co-authored-by: Ryan Ofsky <ryan@ofsky.org>
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Hodlinator 2025-05-14 14:33:29 +02:00
parent ad5cd129f3
commit d8f05e7bf3
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1 changed files with 3 additions and 7 deletions
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10
test/functional/feature_framework_startup_failures.py
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@ -36,15 +36,11 @@ class FeatureFrameworkStartupFailures(BitcoinTestFramework):
# Launches a child test process that runs this same file, but instantiates
# a child test. Verifies that it raises only the expected exception, once.
def _verify_startup_failure(self, test, internal_args, expected_exception):
# Inherit args from parent, only modifying tmpdir so children don't fail
# as a cause of colliding with the parent dir.
parent_args = sys.argv.copy()
# Inherit sys.argv from parent, only overriding tmpdir to a subdirectory
# so children don't fail due to colliding with the parent dir.
assert self.options.tmpdir, "Framework should always set tmpdir."
i, path = next(((i, m[1]) for i, arg in enumerate(parent_args) if (m := re.match(r'--tm(?:p(?:d(?:ir?)?)?)?=(.+)', arg))),
(len(parent_args), self.options.tmpdir))
subdir = md5(expected_exception.encode('utf-8')).hexdigest()[:8]
parent_args[i:i + 1] = [f"--tmpdir={path}/{subdir}"]
args = [sys.executable] + parent_args + [f"--internal_test={test.__name__}"] + internal_args
args = [sys.executable] + sys.argv + [f"--tmpdir={self.options.tmpdir}/{subdir}", f"--internal_test={test.__name__}"] + internal_args
try:
# The subprocess encoding argument gives different results for e.output