def test_term2ch(self):
p = Preprocessor()
charlist = p.term2ch('help')
self.assertEqual(charlist, ['h', 'e', 'l', 'p'])
def test_term2ch(self):
p = Preprocessor()
charlist = p.term2ch('help')
self.assertEqual(charlist, ['h', 'e', 'l', 'p'])