Sublist check

import unittest
import functools

def check(sub, sup):
    try:
        if len(sub) == 1 and sup.index(sub[0]) >= 0:
            return True
        return check(sub[1:], sup[sup.index(sub[0]) + 1:])
    except:
        return False

class CheckTest(unittest.TestCase):

    def setUp(self):
        self.sup = [1, 2, 3, [4, 5]]
        self.check = functools.partial(check, sup=self.sup)

    def test1(self):
        self.assertTrue(self.check([1]))

    def test2(self):
        self.assertTrue(self.check([1, 2]))

    def test3(self):
        self.assertTrue(self.check([2, 3]))

    def test4(self):
        self.assertTrue(self.check([1, [4, 5]]))

    def test5(self):
        self.assertFalse(self.check([2, 1]))

if __name__ == "__main__":
    unittest.main()