def test_strikethrough_multiline(self):

        text = "this is\nthe multiline text"

        expected = "~~this is\nthe multiline text~~"
        actual = gfm_utils.strikethrough(text)

        self.assertEqual(actual, expected)
    def test_strikethrough_blank(self):

        text = "  "

        expected = "~~  ~~"
        actual = gfm_utils.strikethrough(text)

        self.assertEqual(actual, expected)
    def test_strikethrough_none(self):

        with self.assertRaises(AssertionError):
            gfm_utils.strikethrough(None)