Mercurial > hg
annotate tests/hypothesishelpers.py @ 48670:6d2ddea0721a stable
stream-clone: filter possible missing requirements using all supported one
The `supportedformat` requirements is missing some important requirements and it
seems better to filter out with all requirements we know, not just an
"arbitrary" subset.
The `supportedformat` set is lacking some important requirements (for example
`revlog-compression-zstd`). This is getting fixed on default (for Mercurial 6.1)
However, fixing that in 6.1 means the stream requirements sent over the wire
will contains more items. And if we don't apply this fix on older version, they
might end up complaining about lacking support for feature they actually support
for years.
This patch does not fix the deeper problem (advertised stream requirement
lacking some of them), but focus on the trivial part : Lets use the full set of
supported requirement for looking for unsupported ones.
This patch should be simple to backport to older version of Mercurial and
packager should be encouraged to do so.
This is a graft of d9017df70135 from default.
Differential Revision: https://phab.mercurial-scm.org/D12091
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Mon, 24 Jan 2022 11:49:06 +0100 |
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1 # Helper module to use the Hypothesis tool in tests |
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2 # |
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3 # Copyright 2015 David R. MacIver |
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4 # |
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5 # For details see http://hypothesis.readthedocs.org |
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6 |
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7 from __future__ import absolute_import, print_function |
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8 import os |
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9 import sys |
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10 import traceback |
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11 |
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12 try: |
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13 # hypothesis 2.x |
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14 from hypothesis.configuration import set_hypothesis_home_dir |
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15 from hypothesis import settings |
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16 except ImportError: |
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17 # hypothesis 1.x |
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18 from hypothesis.settings import set_hypothesis_home_dir |
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19 from hypothesis import Settings as settings |
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20 import hypothesis.strategies as st |
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21 from hypothesis import given |
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22 |
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23 # hypothesis store data regarding generate example and code |
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24 set_hypothesis_home_dir(os.path.join(os.getenv('TESTTMP'), ".hypothesis")) |
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25 |
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26 |
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27 def check(*args, **kwargs): |
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28 """decorator to make a function a hypothesis test |
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29 |
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30 Decorated function are run immediately (to be used doctest style)""" |
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31 |
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32 def accept(f): |
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33 # Workaround for https://github.com/DRMacIver/hypothesis/issues/206 |
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34 # Fixed in version 1.13 (released 2015 october 29th) |
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35 f.__module__ = '__anon__' |
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36 try: |
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37 with settings(max_examples=2000): |
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38 given(*args, **kwargs)(f)() |
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39 except Exception: |
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40 traceback.print_exc(file=sys.stdout) |
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41 sys.exit(1) |
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42 |
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43 return accept |
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44 |
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45 |
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46 def roundtrips(data, decode, encode): |
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47 """helper to tests function that must do proper encode/decode roundtripping""" |
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48 |
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49 @given(data) |
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50 def testroundtrips(value): |
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51 encoded = encode(value) |
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52 decoded = decode(encoded) |
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53 if decoded != value: |
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54 raise ValueError( |
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55 "Round trip failed: %s(%r) -> %s(%r) -> %r" |
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56 % (encode.__name__, value, decode.__name__, encoded, decoded) |
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57 ) |
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58 |
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59 try: |
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60 testroundtrips() |
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61 except Exception: |
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62 # heredoc swallow traceback, we work around it |
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63 traceback.print_exc(file=sys.stdout) |
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64 raise |
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65 print("Round trip OK") |
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66 |
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67 |
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68 # strategy for generating bytestring that might be an issue for Mercurial |
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69 bytestrings = ( |
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70 st.builds( |
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71 lambda s, e: s.encode(e), |
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72 st.text(), |
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73 st.sampled_from( |
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74 [ |
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75 'utf-8', |
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76 'utf-16', |
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77 ] |
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78 ), |
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79 ) |
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80 ) | st.binary() |