setup: prevent setuptools from laying an egg
Previously, test-hghave.t was failing on Windows (and on Linux if
$FORCE_SETUPTOOLS was set) with the following:
--- c:/Users/Matt/Projects/hg/tests/test-hghave.t
+++ c:/Users/Matt/Projects/hg/tests/test-hghave.t.err
@@ -19,7 +19,11 @@
> foo
> EOF
$ run-tests.py $HGTEST_RUN_TESTS_PURE test-hghaveaddon.t
+ warning: Testing with unexpected mercurial lib: c:\Users\Matt\Projects\hg\mercurial
+ (expected ...\hgtests.mu9rou\install\lib\python\mercurial)
.
+ warning: Tested with unexpected mercurial lib: c:\Users\Matt\Projects\hg\mercurial
+ (expected ...\hgtests.mu9rou\install\lib\python\mercurial)
Augie relayed concerns[1] about the first attempt at this, which also excluded
'install_egg_info'. All that needs to be excluded to avoid the egg and make the
test work is to filter out 'bdist_egg'. (Actually, the body of this class could
simply be 'pass', and 'bdist_egg' still isn't run. But that seems to magical.)
Also note that prior to this (and still now), `make clean` doesn't delete the
'mercurial.egg-info' that is generated by `make install`.
[1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-May/097668.html
# no-check-commit
# Randomized torture test generation for bdiff
from __future__ import absolute_import, print_function
import random
import sys
from mercurial import (
mdiff,
)
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 as inst:
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:
pass
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 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