Mercurial > hg
view tests/hypothesishelpers.py @ 27377:d1c998d7b103
help: pass subtopic into help()
Now that we have multiple directories where help topics can live,
we need a mechanism to access them. We already use "." to
separate topic from section. So it seems logical to also use "." to
denote the sub-directory of a topic.
This patch teaches the help command to parse out the possible
sub-topic and pass it to the help system.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Sun, 13 Dec 2015 11:04:45 -0800 |
parents | 0f76c64f5cc3 |
children | 84513a4fcc3a |
line wrap: on
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 from hypothesis.settings import set_hypothesis_home_dir import hypothesis.strategies as st from hypothesis import given, Settings # 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: given(*args, settings=Settings(max_examples=2000), **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()