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Viewing changes to twisted/vfs/test/test_osfs.py

  • Committer: Bazaar Package Importer
  • Author(s): Matthias Klose
  • Date: 2007-01-17 14:52:35 UTC
  • mfrom: (1.1.5 upstream) (2.1.2 etch)
  • Revision ID: james.westby@ubuntu.com-20070117145235-btmig6qfmqfen0om
Tags: 2.5.0-0ubuntu1
New upstream version, compatible with python2.5.

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twisted/vfs/test/test_osfs.py
 
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# Copyright (c) 2001-2005 Twisted Matrix Laboratories.
 
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# See LICENSE for details.
 
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import os
 
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import os.path
 
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import shutil
 
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from twisted.trial import unittest
 
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from twisted.vfs.backends import osfs, inmem
 
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from twisted.vfs.ivfs import IFileSystemContainer, IFileSystemLeaf, VFSError
 
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from twisted.vfs import pathutils
 
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class OSVFSTest(unittest.TestCase):
 
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    def setUp(self):
 
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        self.tmpdir = self.mktemp()
 
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        os.mkdir(self.tmpdir)
 
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        os.mkdir(os.path.join(self.tmpdir, 'somedir'))
 
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    def tearDown(self):
 
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        shutil.rmtree( self.tmpdir )
 
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    def test_subclassing(self):
 
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        # The children of a subclassed OSDirectory will also be instances of
 
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        # the subclass (unless childDirFactory is explicitly overridden).
 
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        # Define a subclass of OSDirectory
 
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        class OSDirSubclass(osfs.OSDirectory):
 
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            pass
 
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        # Subdirectories, both existing and newly created, will be instances of
 
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        # the subclass.
 
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        osdir = OSDirSubclass(self.tmpdir)
 
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        self.assert_(isinstance(osdir.child('somedir'), OSDirSubclass))
 
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        self.assert_(isinstance(osdir.createDirectory('new'), OSDirSubclass))
 
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    def test_childDirFactory(self):
 
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        # The class of subdirectories can be overridden using childDirFactory
 
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        # Define a subclass of OSDirectory that overrides childDirFactory
 
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        class OSDirSubclass(osfs.OSDirectory):
 
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            def childDirFactory(self):
 
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                return osfs.OSDirectory
 
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        # Subdirectories, both existing and newly created, will be instances of
 
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        # osfs.OSDirectory, but not OSDirSubclass.
 
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        osdir = OSDirSubclass(self.tmpdir)
 
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        self.assert_(isinstance(osdir.child('somedir'), osfs.OSDirectory))
 
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        self.assertNot(isinstance(osdir.child('somedir'), OSDirSubclass))
 
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        self.assert_(isinstance(osdir.createDirectory('new'), osfs.OSDirectory))
 
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        self.assertNot(isinstance(osdir.createDirectory('new2'), OSDirSubclass))
 
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    def test_createFileExclusive(self):
 
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        osdir = osfs.OSDirectory(self.tmpdir)
 
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        # Creating a new file with exclusivity should pass
 
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        child = osdir.createFile('foo', exclusive=True)
 
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        self.failUnless(IFileSystemLeaf.providedBy(child))
 
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        self.assertIn('foo', [name for name, child in osdir.children()])
 
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        # Creating an existing file with exclusivity should fail.
 
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        self.assertRaises(VFSError, osdir.createFile, 'foo', exclusive=True)
 
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        # Creating an existing file unexclusively should pass.
 
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        child = osdir.createFile('foo', exclusive=False)
 
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        self.failUnless(IFileSystemLeaf.providedBy(child))
 
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        self.assertIn('foo', [name for name, child in osdir.children()])
 
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