Mercurial > hg
annotate tests/test-atomictempfile.py @ 25881:9de443515f1d stable
help: scripting help topic
There are a lot of non-human consumers of Mercurial. And the challenges
and considerations for machines consuming Mercurial is significantly
different from what humans face.
I think there are enough special considerations around how machines
consume Mercurial that a dedicated help topic is warranted. I concede
the audience for this topic is probably small compared to the general
audience. However, lots of normal Mercurial users do things like create
one-off shell scripts for common workflows that I think this is useful
enough to be in the install (as opposed to, say, a wiki page - which
most users will likely never find).
This text is by no means perfect. But you have to start somewhere. I
think I did cover the important parts, though.
author | Gregory Szorc <gregory.szorc@gmail.com> |
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date | Sat, 18 Jul 2015 17:10:28 -0700 |
parents | fb9d1c2805ff |
children | f00f1de16454 |
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atomictempfile: avoid infinite recursion in __del__().
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1 import os |
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2 import glob |
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3 import unittest |
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4 import silenttestrunner |
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5 |
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6 from mercurial.util import atomictempfile |
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7 |
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8 class testatomictempfile(unittest.TestCase): |
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9 def test1_simple(self): |
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10 if os.path.exists('foo'): |
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11 os.remove('foo') |
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12 file = atomictempfile('foo') |
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13 (dir, basename) = os.path.split(file._tempname) |
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14 self.assertFalse(os.path.isfile('foo')) |
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15 self.assertTrue(basename in glob.glob('.foo-*')) |
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16 |
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17 file.write('argh\n') |
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18 file.close() |
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19 |
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20 self.assertTrue(os.path.isfile('foo')) |
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21 self.assertTrue(basename not in glob.glob('.foo-*')) |
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22 |
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23 # discard() removes the temp file without making the write permanent |
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24 def test2_discard(self): |
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25 if os.path.exists('foo'): |
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26 os.remove('foo') |
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27 file = atomictempfile('foo') |
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28 (dir, basename) = os.path.split(file._tempname) |
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29 |
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30 file.write('yo\n') |
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31 file.discard() |
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32 |
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33 self.assertFalse(os.path.isfile('foo')) |
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34 self.assertTrue(basename not in os.listdir('.')) |
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35 |
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36 # if a programmer screws up and passes bad args to atomictempfile, they |
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37 # get a plain ordinary TypeError, not infinite recursion |
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38 def test3_oops(self): |
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39 self.assertRaises(TypeError, atomictempfile) |
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40 |
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41 if __name__ == '__main__': |
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42 silenttestrunner.main(__name__) |