Mercurial > hg
annotate tests/hypothesishelpers.py @ 27027:a01ecbcfaf84
mergestate: handle additional record types specially
This works around a bug in older Mercurial versions' handling of the v2 merge
state.
We also add a bunch of tests that make sure that
(1) we correctly abort when the merge state has an unsupported record type
(2) aborting the merge, rebase or histedit continues to work and clears out the
merge state.
author | Siddharth Agarwal <sid0@fb.com> |
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date | Wed, 18 Nov 2015 15:46:45 -0800 |
parents | 0f76c64f5cc3 |
children | 84513a4fcc3a |
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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 import os |
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8 import sys |
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9 import traceback |
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10 |
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11 from hypothesis.settings import set_hypothesis_home_dir |
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12 import hypothesis.strategies as st |
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13 from hypothesis import given, Settings |
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14 |
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15 # hypothesis store data regarding generate example and code |
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16 set_hypothesis_home_dir(os.path.join( |
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17 os.getenv('TESTTMP'), ".hypothesis" |
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18 )) |
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19 |
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20 def check(*args, **kwargs): |
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21 """decorator to make a function a hypothesis test |
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22 |
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23 Decorated function are run immediately (to be used doctest style)""" |
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24 def accept(f): |
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25 # Workaround for https://github.com/DRMacIver/hypothesis/issues/206 |
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26 # Fixed in version 1.13 (released 2015 october 29th) |
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27 f.__module__ = '__anon__' |
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28 try: |
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29 given(*args, settings=Settings(max_examples=2000), **kwargs)(f)() |
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30 except Exception: |
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31 traceback.print_exc(file=sys.stdout) |
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32 sys.exit(1) |
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33 return accept |
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34 |
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35 |
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36 def roundtrips(data, decode, encode): |
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37 """helper to tests function that must do proper encode/decode roundtripping |
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38 """ |
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39 @given(data) |
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40 def testroundtrips(value): |
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41 encoded = encode(value) |
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42 decoded = decode(encoded) |
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43 if decoded != value: |
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44 raise ValueError( |
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45 "Round trip failed: %s(%r) -> %s(%r) -> %r" % ( |
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46 encode.__name__, value, decode.__name__, encoded, |
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47 decoded |
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48 )) |
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49 try: |
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50 testroundtrips() |
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51 except Exception: |
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52 # heredoc swallow traceback, we work around it |
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53 traceback.print_exc(file=sys.stdout) |
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54 raise |
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55 print("Round trip OK") |
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56 |
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57 |
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58 # strategy for generating bytestring that might be an issue for Mercurial |
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59 bytestrings = ( |
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60 st.builds(lambda s, e: s.encode(e), st.text(), st.sampled_from([ |
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61 'utf-8', 'utf-16', |
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62 ]))) | st.binary() |