Mercurial > hg
view tests/hypothesishelpers.py @ 28489:8939a95064f1
changelog: lazily parse description
Before, the description field was converted to a localstr at parse
time. With this patch, we store the raw description and convert to
a localstr when it is first accessed.
We see a revset speedup for revsets that don't access the description:
author(mpm)
0.896565
0.914234
0.869085
date(2015)
0.878797
0.891980
0.862525
extra(rebase_source)
0.865446
0.912514
0.871500
author(mpm) or author(greg)
1.801832
1.860402
1.791589
date(2015) or branch(default)
0.968276
0.994673
0.974027
author(mpm) or desc(bug) or date(2015) or extra(rebase_source)
3.656193
3.721032
3.643593
As you can see, most of these revsets are already faster than from
before this refactoring: we have already offset the performance
loss from the introduction of the new class representing parsed
changelog entries!
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 06 Mar 2016 14:28:46 -0800 |
parents | b30b40804a3f |
children | f33280667aa5 |
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line source
# 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()