def setUp(self):
# Provide an empty stack
self.stack = MyStack()
# Provide a filled stack
self.len_test_data = 5
self.test_data = [i + 1 for i in range(self.len_test_data)]
self.filled_stack = MyStack()
for i in self.test_data:
self.filled_stack.push(i)
def rpn(expression):
# operand: sayi
# operation: islem
operations = ['+', '*', '-', '/']
elements = expression.split()
stack = MyStack()
for e in elements:
if e in operations:
num2 = stack.pop()
num1 = stack.pop()
if e == '+':
result = num1 + num2
elif e == '*':
result = num1 * num2
elif e == '-':
result = num1 - num2
else:
result = num1 / num2
stack.push(result)
else:
num = int(e)
stack.push(num)
print(stack.pop())
def test_is_empty(self):
stack = MyStack()
self.assertTrue(stack.is_empty())
stack.push(1)
self.assertFalse(stack.is_empty())
stack.pop()
self.assertTrue(stack.is_empty())
def main():
"""main関数"""
mystack = MyStack(STACK_SIZE) # インスタンス化
mystack.pushdown('a') # データ入力
mystack.pushdown('b')
mystack.pushdown('c')
while (not mystack.isempty()): # データ出力
print(mystack.popup())
#!/usr/bin/env python3
import os
from aws_cdk import core
from my_stack import MyStack
app = core.App()
MyStack(app,
"s3-lambda-ecs",
env={
"region": "us-east-1",
"account": os.environ["CDK_DEFAULT_ACCOUNT"],
})
app.synth()
def __init__(self):
self.latest = MyStack()
self.oldest = MyStack()
def test_instantiation(self):
stack = MyStack()
self.assertEqual(None, stack.top)
self.assertEqual(0, len(self.stack))