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44343769f8
Summary: We want to rename away from "mercurial". Rather than rename the "mercurial" Python package, we opted to just collapse it into the parent "edenscm" package. This is also a step towards further organizing we want to do around the new project name. To ease the transition wrt hotfixes, we now replace "edenscm.mercurial" with "mercurial" to fix imports within base64-python extensions. Reviewed By: sggutier Differential Revision: D38943169 fbshipit-source-id: 03fa18079c51e2f7fac05d65b127095da3ab7c99
115 lines
2.5 KiB
Python
115 lines
2.5 KiB
Python
# Portions Copyright (c) Meta Platforms, Inc. and affiliates.
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2.
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# Copyright Olivia Mackall <olivia@selenic.com> and others
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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# Randomized torture test generation for bdiff
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from __future__ import absolute_import, print_function
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import random
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import sys
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from edenscm import mdiff
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if sys.version_info.major >= 3:
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xrange = range
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def reducetest(a, b):
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tries = 0
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reductions = 0
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print("reducing...")
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while tries < 1000:
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a2 = "\n".join(l for l in a.splitlines() if random.randint(0, 100) > 0) + "\n"
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b2 = "\n".join(l for l in b.splitlines() if random.randint(0, 100) > 0) + "\n"
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if a2 == a and b2 == b:
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continue
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if a2 == b2:
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continue
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tries += 1
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try:
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test1(a, b)
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except Exception as inst:
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reductions += 1
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tries = 0
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a = a2
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b = b2
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print("reduced:", reductions, len(a) + len(b), repr(a), repr(b))
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try:
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test1(a, b)
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except Exception as inst:
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print("failed:", inst)
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sys.exit(0)
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def test1(a, b):
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d = mdiff.textdiff(a, b)
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if not d:
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raise ValueError("empty")
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c = mdiff.patches(a, [d])
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if c != b:
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raise ValueError("bad")
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def testwrap(a, b):
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try:
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test1(a, b)
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return
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except Exception as inst:
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print("exception:", inst)
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reducetest(a, b)
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def test(a, b):
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testwrap(a, b)
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testwrap(b, a)
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def rndtest(size, noise):
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a = []
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src = " aaaaaaaabbbbccd"
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for x in xrange(size):
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a.append(src[random.randint(0, len(src) - 1)])
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while True:
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b = [c for c in a if random.randint(0, 99) > noise]
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b2 = []
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for c in b:
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b2.append(c)
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while random.randint(0, 99) < noise:
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b2.append(src[random.randint(0, len(src) - 1)])
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if b2 != a:
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break
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a = "\n".join(a) + "\n"
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b = "\n".join(b2) + "\n"
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test(a, b)
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maxvol = 10000
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startsize = 2
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while True:
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size = startsize
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count = 0
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while size < maxvol:
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print(size)
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volume = 0
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while volume < maxvol:
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rndtest(size, 2)
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volume += size
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count += 2
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size *= 2
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maxvol *= 4
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startsize *= 4
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