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[3.15] gh-98894: Check tracer exit status in test_dtrace (GH-152893) #152900

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Merged
vstinner merged 1 commit into from
Jul 2, 2026
Merged

[3.15] gh-98894: Check tracer exit status in test_dtrace (GH-152893) #152900

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gh-98894: Check tracer exit status in test_dtrace (GH-152893) 
Fail functional dtrace and SystemTap cases directly when the tracer exits
non-zero.
(cherry picked from commit 311e7e7)

Co-authored-by: stratakis <cstratak@redhat.com>
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@stratakis @miss-islington
stratakis authored and miss-islington committed Jul 2, 2026
commit 4041ccc90b65d22ea54faa381870ce6f303a5870
11 changes: 9 additions & 2 deletions Lib/test/test_dtrace.py
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Original file line number Diff line number Diff line change
Expand Up @@ -125,7 +125,8 @@ def generate_trace_command(self, script_file, subcommand=None):
command += ["-c", subcommand]
return command

def trace(self, script_file, subcommand=None, *, timeout=None):
def trace(self, script_file, subcommand=None, *, timeout=None,
check_returncode=False):
command = self.generate_trace_command(script_file, subcommand)
proc = create_process_group(command,
stdout=subprocess.PIPE,
Expand All @@ -136,14 +137,20 @@ def trace(self, script_file, subcommand=None, *, timeout=None):
except subprocess.TimeoutExpired:
kill_process_group(proc)
raise
if check_returncode and proc.returncode:
raise AssertionError(
f"Command {' '.join(command)!r} failed "
f"with exit code {proc.returncode}: output={stdout!r}"
)
return stdout

def trace_python(self, script_file, python_file, optimize_python=None):
python_flags = []
if optimize_python:
python_flags.extend(["-O"] * optimize_python)
subcommand = " ".join([sys.executable] + python_flags + [python_file])
return self.trace(script_file, subcommand, timeout=60)
return self.trace(script_file, subcommand, timeout=60,
check_returncode=True)

def assert_usable(self):
try:
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