Mercurial > hg
annotate tests/test-extensions-wrapfunction.py @ 32980:8dc62c97a665
run-tests: do not prompt changes (-i) if a race condition is detected
The race condition is like:
1. run-tests.py reads test-a.t as reference output, content A
2. run-tests.py runs the test (which could be content B, another race
condition fixed by the next patch, but assume it's content A here)
3. something changes test-a.t to content C
4. run-tests.py compares test output (content D) with content A
5. with "-i", run-tests.py prompts diff(A, D), while the file has content
C instead of A at this time
This patch detects the above case and tell the user to rerun the test if
they want to apply test changes.
author | Jun Wu <quark@fb.com> |
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date | Wed, 21 Jun 2017 01:05:20 -0700 |
parents | 19578bb84731 |
children | 47e52f079a57 |
rev | line source |
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1 from __future__ import absolute_import, print_function |
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2 |
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3 from mercurial import extensions |
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4 |
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5 def genwrapper(x): |
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6 def f(orig, *args, **kwds): |
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7 return [x] + orig(*args, **kwds) |
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8 f.x = x |
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9 return f |
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10 |
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11 def getid(wrapper): |
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12 return getattr(wrapper, 'x', '-') |
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13 |
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14 wrappers = [genwrapper(i) for i in range(5)] |
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15 |
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16 class dummyclass(object): |
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17 def getstack(self): |
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18 return ['orig'] |
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19 |
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20 dummy = dummyclass() |
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21 |
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22 def batchwrap(wrappers): |
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23 for w in wrappers: |
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24 extensions.wrapfunction(dummy, 'getstack', w) |
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25 print('wrap %d: %s' % (getid(w), dummy.getstack())) |
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26 |
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27 def batchunwrap(wrappers): |
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28 for w in wrappers: |
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29 result = None |
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30 try: |
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31 result = extensions.unwrapfunction(dummy, 'getstack', w) |
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32 msg = str(dummy.getstack()) |
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33 except (ValueError, IndexError) as e: |
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34 msg = e.__class__.__name__ |
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35 print('unwrap %s: %s: %s' % (getid(w), getid(result), msg)) |
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36 |
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37 batchwrap(wrappers + [wrappers[0]]) |
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38 batchunwrap([(wrappers[i] if i >= 0 else None) |
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39 for i in [3, None, 0, 4, 0, 2, 1, None]]) |