def test_min_works():
m = MinStack()
minimum = 1000
for _ in range(1000):
x = randint(-500, 500)
minimum = min(minimum, x)
m.push(x)
assert m.minimum == minimum
def test_stack_works():
m = MinStack()
test_stack = []
for _ in range(1000):
x = randint(-500, 500)
test_stack.append(x)
m.push(x)
for _ in range(1000):
assert test_stack.pop() == m.pop()
def setUp(self):
self.stack = MinStack()
