def test_issubset_negative(self):
s = SortedFrozenSet({1, 2, 3})
t = [1, 2]
self.assertFalse(s.issubset(t))
def test_issubset_positive(self):
s = SortedFrozenSet({1, 2, 3})
t = [1, 2, 3]
self.assertTrue(s.issubset(t))
