Mercurial > hg
view contrib/bdiff-torture.py @ 51291:0bb5299800ca
pytype: only output the "pytype crashed" message on error
If pytype did not crash while generating stub, that message is kind of
confusing. It seems simple enough to avoid it in this case.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 20 Dec 2023 16:30:32 +0100 |
parents | 6000f5b25c9b |
children |
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# Randomized torture test generation for bdiff import random import sys from mercurial import ( mdiff, pycompat, ) def reducetest(a, b): tries = 0 reductions = 0 print("reducing...") while tries < 1000: a2 = ( "\n".join(l for l in a.splitlines() if random.randint(0, 100) > 0) + "\n" ) b2 = ( "\n".join(l for l in b.splitlines() if random.randint(0, 100) > 0) + "\n" ) if a2 == a and b2 == b: continue if a2 == b2: continue tries += 1 try: test1(a, b) except Exception: reductions += 1 tries = 0 a = a2 b = b2 print("reduced:", reductions, len(a) + len(b), repr(a), repr(b)) try: test1(a, b) except Exception as inst: print("failed:", inst) sys.exit(0) def test1(a, b): d = mdiff.textdiff(a, b) if not d: raise ValueError("empty") c = mdiff.patches(a, [d]) if c != b: raise ValueError("bad") def testwrap(a, b): try: test1(a, b) return except Exception as inst: print("exception:", inst) reducetest(a, b) def test(a, b): testwrap(a, b) testwrap(b, a) def rndtest(size, noise): a = [] src = " aaaaaaaabbbbccd" for x in pycompat.xrange(size): a.append(src[random.randint(0, len(src) - 1)]) while True: b = [c for c in a if random.randint(0, 99) > noise] b2 = [] for c in b: b2.append(c) while random.randint(0, 99) < noise: b2.append(src[random.randint(0, len(src) - 1)]) if b2 != a: break a = "\n".join(a) + "\n" b = "\n".join(b2) + "\n" test(a, b) maxvol = 10000 startsize = 2 while True: size = startsize count = 0 while size < maxvol: print(size) volume = 0 while volume < maxvol: rndtest(size, 2) volume += size count += 2 size *= 2 maxvol *= 4 startsize *= 4