def test_compile(self):
parser = Parser()
nodes = [
Node(Node.STR, value='asd '),
Node(Node.SLICE, stop=3),
Node(Node.SLICE, start=1, stop=2),
]
mask_func = parser.compile(nodes)
self.assertIsInstance(mask_func, LambdaType)
s = ''.join(map(str, range(10)))
self.assertEqual(u'asd 31', mask_func(s))
