def test_calculator_2():
calculator = Calculator(4)
calculator.type(3)
assert 3 == calculator.output()
calculator.multiply()
calculator.type(2)
calculator.type(0)
assert 60 == calculator.output()
def test_calculator_1():
calculator = Calculator(3)
calculator.input(8)
assert 8 == calculator.output()
calculator.type(5)
calculator.type(3)
assert 53 == calculator.output()
calculator.add()
calculator.type(4)
calculator.type(0)
assert 93 == calculator.output()
calculator.divide()
calculator.type(3)
assert 31 == calculator.output()
calculator.multiply()
calculator.type(2)
assert 62 == calculator.output()
def test_calculator3():
calculator = Calculator(3)
calculator.add()
calculator.input(3)
calculator.multiply()
calculator.type(2)
calculator.add()
calculator.type(1)
assert 7 == calculator.output()
def test_strategy_execute():
memory = Calculator(5)
strategy = Strategy([
Action(memory.add),
Action(partial(memory.type, digit=3)),
Action(memory.deduct),
Action(partial(memory.type, digit=4)),
])
strategy.execute(OperationsCounter())
assert 4 == memory.output()