def METHOD_NAME(self):
    # Insert a row
    row_data = dict(icon=None, title="A", subtitle="a subtitle")
    INSERTED_AT = 0
    self.dl.data.insert(INSERTED_AT, row_data)
    # Make sure it's in there
    self.assertEqual(len(self.gtk_dl.store), 1)
    # Make sure the row got stored correctly
    result_row = self.gtk_dl.store[INSERTED_AT]
    self.assertRowEqual(result_row, row_data)