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# Copyright (C) 2007 Canonical Ltd
 
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# Copyright (C) 2007, 2009, 2010 Canonical Ltd
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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    osutils,
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    )
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from bzrlib.tests import UnicodeFilenameFeature
 
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from bzrlib.tests import (features, UnicodeFilenameFeature)
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from bzrlib.tests.per_lock import TestCaseWithLock
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        But we shouldn't be able to take a write lock.
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        """
 
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        self.requireFeature(features.not_running_as_root)
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        osutils.make_readonly('a-file')
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        # Make sure the file is read-only (on all platforms)
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        self.assertRaises(IOError, open, 'a-file', 'rb+')