'C{siblingExtensionSearch} called with L{unicode} on a L{unicode}-mode
L{FilePath} will return a L{list} of L{unicode}-mode L{FilePath}s.'

def test_unicodeSiblingExtensionSearch(self):

    fp = filepath.FilePath(u'./mon\u20acy')
    sibling = filepath.FilePath((fp._asTextPath() + u'.txt'))
    sibling.touch()
    newPath = fp.siblingExtensionSearch(u'.txt')
    self.assertIsInstance(newPath, filepath.FilePath)
    self.assertIsInstance(newPath.path, unicode)
