phases: update the phase set as we go during retract boundary
Apparently iterating over the `changed_revs` dictionary is very expensive.
On mozilla-try-2019-02-18, a perf::unbundle call with a 10 000 changesets
bundle gives give use the following timing.
e57d4b868a3e: 4.6 seconds
ac1c75188440: 102.5 seconds
prev-changeset: 30.0 seconds
this-changeset: 4.6 seconds
So, the performance regression is gone.
Once again: thanks to marvelous Python!
# Helper module to use the Hypothesis tool in tests
#
# Copyright 2015 David R. MacIver
#
# For details see http://hypothesis.readthedocs.org
import os
import sys
import traceback
try:
# hypothesis 2.x
from hypothesis.configuration import set_hypothesis_home_dir
from hypothesis import settings
except ImportError:
# hypothesis 1.x
from hypothesis.settings import set_hypothesis_home_dir
from hypothesis import Settings as settings
import hypothesis.strategies as st
from hypothesis import given
# hypothesis store data regarding generate example and code
set_hypothesis_home_dir(os.path.join(os.getenv('TESTTMP'), ".hypothesis"))
def check(*args, **kwargs):
"""decorator to make a function a hypothesis test
Decorated function are run immediately (to be used doctest style)"""
def accept(f):
# Workaround for https://github.com/DRMacIver/hypothesis/issues/206
# Fixed in version 1.13 (released 2015 october 29th)
f.__module__ = '__anon__'
try:
with settings(max_examples=2000):
given(*args, **kwargs)(f)()
except Exception:
traceback.print_exc(file=sys.stdout)
sys.exit(1)
return accept
def roundtrips(data, decode, encode):
"""helper to tests function that must do proper encode/decode roundtripping"""
@given(data)
def testroundtrips(value):
encoded = encode(value)
decoded = decode(encoded)
if decoded != value:
raise ValueError(
"Round trip failed: %s(%r) -> %s(%r) -> %r"
% (encode.__name__, value, decode.__name__, encoded, decoded)
)
try:
testroundtrips()
except Exception:
# heredoc swallow traceback, we work around it
traceback.print_exc(file=sys.stdout)
raise
print("Round trip OK")
# strategy for generating bytestring that might be an issue for Mercurial
bytestrings = (
st.builds(
lambda s, e: s.encode(e),
st.text(),
st.sampled_from(
[
'utf-8',
'utf-16',
]
),
)
) | st.binary()