def METHOD_NAME(self):
    s1 = "d{0}a:cbfield=a;t:cbfield=ta;b=tb"
    e1 = "{#d1a:cbfield stem: 'a1'#}{#d2a:cbfield stem: 'a2'#}{#t:cbfield stem: 'ta'#}{#b stem: 'tb'#}"
    r1 = gfrange(s1, 1, 2)
    self.assertEqual(e1, r1, "Not same in field type case own format alias")