Mercurial > hg
view tests/hypothesishelpers.py @ 50329:3dbc7b1ecaba stable
typing: correct the signature of error.CommandError
There's a place in `mercurial.dispatch._parse()` that passes None if a parse
error happens before the command can be parsed out, and casting the error to
bytes works fine because the command and message fields are apparently ignored.
Likewise, TortoiseHg similarly passes None for the same reason.
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Fri, 24 Mar 2023 02:22:12 -0400 |
parents | 6000f5b25c9b |
children |
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# 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()