def METHOD_NAME(self):
    self.assert_text_renders_to(
        [
            [['1', '2', '3'], ['4', '5', '6']],
            [['7', '8', '9'], ['0', '1', '2']],
        ],
        '1\t2\t3\n'
        '4\t5\t6\n'
        '7\t8\t9\n'
        '0\t1\t2\n'
    )