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  • Committer: Martin
  • Date: 2010-01-06 19:59:02 UTC
  • mto: (4934.1.9 2.1.0rc1-set-mtime)
  • mto: This revision was merged to the branch mainline in revision 4940.
  • Revision ID: gzlist@googlemail.com-20100106195902-vi1ckfsu2wurtt8v
Rearrange osutils.fset_mtime tests a little and make them robust on FAT filesystems

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Lines of Context:
bzrlib/tests/test_osutils.py
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class TestFSetMtime(tests.TestCaseInTempDir):
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    def test__utime_fset_mtime(self):
 
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    def _check_fset_mtime(self, func):
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        f = open('test', 'wb')
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        try:
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            mtime = os.fstat(f.fileno()).st_mtime
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            new_mtime = mtime - 20
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            osutils._utime_fset_mtime(f, new_mtime)
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        finally:
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            f.close()
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        self.assertEqual(int(new_mtime), int(os.lstat('test').st_mtime))
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    def test_fset_mtime(self):
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        f = open('test', 'wb')
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        new_mtime = time.time()-20.0
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        try:
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            mtime = os.fstat(f.fileno()).st_mtime
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            osutils.fset_mtime(f, new_mtime)
 
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            func(f, new_mtime)
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        finally:
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            f.close()
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        self.assertNotEqual(mtime, new_mtime)
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        # We don't guarantee any better than 1s resolution, though we try to
 
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        set_mtime = os.lstat('test').st_mtime
 
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        # We don't guarantee any better than 2s resolution, due to timestamp
 
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        # precision limitations on older filesystems such as FAT, but try to
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        # use functions that have at least microsecond resolution (1us on
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        # POSIX, 100ns on Windows)
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        self.assertEqual(int(new_mtime), int(os.lstat('test').st_mtime))
 
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        self.assertFalse(int((new_mtime - set_mtime) / 2),
 
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            "%r != %r within two seconds" % (new_mtime, set_mtime))
 
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    def test_fset_mtime(self):
 
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        self._check_fset_mtime(osutils.fset_mtime)
 
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        if osutils.fset_mtime is not osutils._utime_fset_mtime:
 
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            self._check_fset_mtime(osutils._utime_fset_mtime)