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Meta: Tweak test_pdf.py script

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* Elide parser offsets to better group parser errors
* Use `backslashreplace` for decoding crash stacks so that we don't
  crash when printing crash stacks if the error output isn't valid
  utf-8
* Swap last two lines of output, reads a bit better
This commit is contained in:
Nico Weber 2023-10-21 11:49:39 -04:00 • committed by Andreas Kling
parent 04aec4a032
commit 3dd68f6026
Notes: sideshowbarker 2024-07-17 03:03:37 +09:00
1 changed files with 8 additions and 4 deletions
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12
Meta/test_pdf.py
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@ -30,11 +30,16 @@ def elide_aslr(s):
return re.sub(rb'\b0x[0-9a-f]+\b', b'0xc3ns0r3d', s)
def elide_parser_offset(s):
return re.sub(rb'\bParser error at offset [0-9]+:', b'Parser error:', s)
def test_pdf(filename):
pdf_path = os.path.join(os.path.dirname(__file__), '../Build/lagom/bin/pdf')
r = subprocess.run([pdf_path, '--debugging-stats', filename],
capture_output=True)
return Result(filename, r.returncode, r.stdout, elide_aslr(r.stderr))
return Result(filename, r.returncode, r.stdout,
elide_parser_offset(elide_aslr(r.stderr)))
def main():
@ -68,16 +73,15 @@ def main():
keys.sort(key=lambda x: len(stack_to_files[x]), reverse=True)
for stack in reversed(keys[:5]):
files = stack_to_files[stack]
print(stack.decode('utf-8'), end='')
print(stack.decode('utf-8', 'backslashreplace'), end='')
print(f'In {len(files)} files:')
for file in files:
print(f' {file}')
print()
print(f'{len(keys)} distinct crash stacks')
percent = 100 * num_crashes / len(results)
print(f'{num_crashes} crashes ({percent:.1f}%)')
print(f'{len(keys)} distinct crash stacks')
if __name__ == '__main__':