'Add an item with an actual audio file to the library.'

def add_item_fixture(self, **values):

    item = self.create_item(**values)
    extension = item['format'].lower()
    item['path'] = os.path.join(_common.RSRC, util.bytestring_path(('min.' + extension)))
    item.add(self.lib)
    item.move(copy=True)
    item.store()
    return item
