def test_1(): s = Stack() assert s.empty() s.push(1) assert not s.empty() assert s.top() == 1 s.pop() assert s.empty() s.push(2) assert s.top() == 2 s.push(3) s.push(4) s.push(5) s.pop() assert s.top() == 4 assert s.top() == 4 s.pop() assert s.top() == 3 s.pop() s.push(6) s.push(7) s.pop() s.pop() assert s.top() == 2 s.pop() assert s.empty()
#!/usr/bin/env python # -*- coding: utf-8 -*- from solution import Stack st = Stack() st.push(1) print(st.top()) print(st.empty()) # st.push(1) # print(st.pop())