def test_minStack1(self):
minStack = MinStack()
minStack.push(0)
minStack.push(1)
minStack.push(0)
assert minStack.top() == 0
assert minStack.getMin() == 0
minStack.pop()
assert minStack.top() == 1
assert minStack.getMin() == 0
def test_minStack2(self):
minStack = MinStack()
minStack.push(-1)
assert minStack.top() == -1
assert minStack.getMin() == -1
