def test_gen_prefixes(self):
     prefixes = R.gen_prefixes([F_bra_close("Al(OH)3")])
     self.assertEquals(prefixes[-1].prefix, "AlOH)3")
 def test_gen_prefixes(self):
     prefixes = R.gen_prefixes([F_plain("Al(OH)3")])
     self.assertEquals(prefixes[-1].prefix, "Al(OH)3")