Mercurial > hg
annotate tests/hypothesishelpers.py @ 35816:f6ca1e11d8b4 stable
revset: evaluate filesets against each revision for 'file()' (issue5778)
After f2aeff8a87b6, the fileset was evaluated to a set of files against the
working directory, and then those files were applied against each revision. The
result was nonsense. For example, `hg log -r 'file("set:exec()")'` on the
Mercurial repo listed revision 0 because it has the `hg` script, which is
currently +x. But that bit wasn't applied until revision 280 (which
'contains()' properly indicates).
This technique was borrowed from checkstatus(), which services adds(),
modifies(), and removes(), so it seems safe enough. The 'r:' case is explicitly
assigned to wdirrev, freeing up rev=None to mean "re-evaluate at each revision".
The distinction is important to avoid behavior changes with `hg log set:...`
(test-largefiles-misc.t and test-fileset-generated.t drop current log output
without this). I'm not sure what the right behavior for that is (1fd352aa08fc
explicitly enabled this behavior for graphlog), but the day before the release
isn't the time to experiment.
author | Matt Harbison <matt_harbison@yahoo.com> |
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date | Sun, 28 Jan 2018 14:08:59 -0500 |
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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( |
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25 os.getenv('TESTTMP'), ".hypothesis" |
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26 )) |
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27 |
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28 def check(*args, **kwargs): |
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29 """decorator to make a function a hypothesis test |
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30 |
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31 Decorated function are run immediately (to be used doctest style)""" |
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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 return accept |
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43 |
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44 |
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45 def roundtrips(data, decode, encode): |
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46 """helper to tests function that must do proper encode/decode roundtripping |
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47 """ |
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48 @given(data) |
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49 def testroundtrips(value): |
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50 encoded = encode(value) |
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51 decoded = decode(encoded) |
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52 if decoded != value: |
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53 raise ValueError( |
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54 "Round trip failed: %s(%r) -> %s(%r) -> %r" % ( |
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55 encode.__name__, value, decode.__name__, encoded, |
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56 decoded |
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57 )) |
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58 try: |
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59 testroundtrips() |
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60 except Exception: |
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61 # heredoc swallow traceback, we work around it |
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62 traceback.print_exc(file=sys.stdout) |
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63 raise |
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64 print("Round trip OK") |
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65 |
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66 |
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67 # strategy for generating bytestring that might be an issue for Mercurial |
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68 bytestrings = ( |
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69 st.builds(lambda s, e: s.encode(e), st.text(), st.sampled_from([ |
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70 'utf-8', 'utf-16', |
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71 ]))) | st.binary() |