Mercurial > hg
view contrib/bdiff-torture.py @ 47643:11f834e7177d
pyoxidizer: add hooks to inject extra python packages and install files
We need this type of hook to inject our internal extension and resource files
at Google. Presumably this could be useful to others, so instead of trying to
carry an internal patch we've done this in a modular way that should be of
value upstream.
I'm extremely puzzled by the behavior of glob() on Windows, and I'll
be filing at least one (probably two) bugs upstream about it.
Differential Revision: https://phab.mercurial-scm.org/D11092
author | Augie Fackler <augie@google.com> |
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date | Mon, 12 Jul 2021 15:56:25 -0400 |
parents | 2372284d9457 |
children | 6000f5b25c9b |
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# Randomized torture test generation for bdiff from __future__ import absolute_import, print_function 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