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Viewing changes to bzrlib/tests/features.py

  • Committer: Robert Collins
  • Date: 2010-04-08 04:34:03 UTC
  • mfrom: (5138 +trunk)
  • mto: This revision was merged to the branch mainline in revision 5139.
  • Revision ID: robertc@robertcollins.net-20100408043403-56z0d07vdqrx7f3t
Update bugfix for 528114 to trunk.

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bzrlib/tests/features.py
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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import os
 
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import stat
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from bzrlib import tests
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from bzrlib.symbol_versioning import deprecated_in
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apport = tests.ModuleAvailableFeature('apport')
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ApportFeature = tests._CompatabilityThunkFeature('bzrlib.tests.features',
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    'ApportFeature', 'bzrlib.tests.features.apport', deprecated_in((2,1,0)))
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paramiko = tests.ModuleAvailableFeature('paramiko')
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pycurl = tests.ModuleAvailableFeature('pycurl')
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subunit = tests.ModuleAvailableFeature('subunit')
 
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class _PosixPermissionsFeature(tests.Feature):
 
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    def _probe(self):
 
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        def has_perms():
 
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            # create temporary file and check if specified perms are maintained.
 
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            import tempfile
 
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            write_perms = stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR
 
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            f = tempfile.mkstemp(prefix='bzr_perms_chk_')
 
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            fd, name = f
 
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            os.close(fd)
 
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            os.chmod(name, write_perms)
 
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            read_perms = os.stat(name).st_mode & 0777
 
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            os.unlink(name)
 
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            return (write_perms == read_perms)
 
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        return (os.name == 'posix') and has_perms()
 
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    def feature_name(self):
 
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        return 'POSIX permissions support'
 
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posix_permissions_feature = _PosixPermissionsFeature()
 
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class _ChownFeature(tests.Feature):
 
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    """os.chown is supported"""
 
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    def _probe(self):
 
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        return os.name == 'posix' and hasattr(os, 'chown')
 
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chown_feature = _ChownFeature()
 
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