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Merge bitcoin/bitcoin#29329: fuzz: Print coverage summary after run_once

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fab97d81ce fuzz: Print coverage summary after run_once (MarcoFalke)

Pull request description:

  This can be used to quickly check the coverage effects of a code change or qa-assets change.

ACKs for top commit:
  dergoegge:
    ACK fab97d81ce

Tree-SHA512: 0ac913c14698f39e76e0e7bf124f182220031796d6443edb34c6e4615e128157cf746da661b216c4640a41964e977249712445ca9c005b1b4a3737adabdb4a7d
This commit is contained in:
fanquake 2024-01-29 16:24:45 +00:00
commit 759195040a
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1 changed files with 14 additions and 2 deletions
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16
test/fuzz/test_runner.py
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@ -348,13 +348,18 @@ def run_once(*, fuzz_pool, corpus, test_list, src_dir, build_dir, using_libfuzze
text=True, text=True,
) )
output += result.stderr output += result.stderr
return output, result return output, result, t
jobs.append(fuzz_pool.submit(job, t, args)) jobs.append(fuzz_pool.submit(job, t, args))
stats = []
for future in as_completed(jobs): for future in as_completed(jobs):
output, result = future.result() output, result, target = future.result()
logging.debug(output) logging.debug(output)
if using_libfuzzer:
done_stat = [l for l in output.splitlines() if "DONE" in l]
assert len(done_stat) == 1
stats.append((target, done_stat[0]))
try: try:
result.check_returncode() result.check_returncode()
except subprocess.CalledProcessError as e: except subprocess.CalledProcessError as e:
@ -365,6 +370,13 @@ def run_once(*, fuzz_pool, corpus, test_list, src_dir, build_dir, using_libfuzze
logging.info(f"Target {result.args} failed with exit code {e.returncode}") logging.info(f"Target {result.args} failed with exit code {e.returncode}")
sys.exit(1) sys.exit(1)
if using_libfuzzer:
print("Summary:")
max_len = max(len(t[0]) for t in stats)
for t, s in sorted(stats):
t = t.ljust(max_len + 1)
print(f"{t}{s}")
def parse_test_list(*, fuzz_bin): def parse_test_list(*, fuzz_bin):
test_list_all = subprocess.run( test_list_all = subprocess.run(