class TestCalc:
"""
test calculator's function
"""
def setup_class(self):
print('开始计算')
self.cc = Calc()
def teardown_class(self):
print('结束计算')
@pytest.mark.parametrize('a,b,expect',
[[1, 2, 3], [1, 0, 1], [100, 200, 300],
[-1, -2, -3], [0.1, 1, 1.1], [0.3, 0.6, 0.9]])
def test_add(self, a, b, expect):
result = self.cc.add(a, b)
assert result == expect
@pytest.mark.parametrize('a,b,expect', [(1, 2, -1), (1, 1, 0), (2, 1, 1),
(-1, -1, 0)])
def test_minus(self, a, b, expect):
result = self.cc.minus(a, b)
assert result == expect
@pytest.mark.parametrize('a,b,expect', [(1, 2, 2), (1, 1, 1), (0, 2, 0),
(-1, -1, 1), (-10, 10, -100),
(0.1, 0.2, 0.02)])
def test_multiple(self, a, b, expect):
result = self.cc.multiple(a, b)
assert result == expect
@pytest.mark.parametrize('a,b,expect',
[[1, 1, 1], [1, 2, 0.5], [4, 2, 2], [0, 4, 0]])
def test_divide(self, a, b, expect):
result = self.cc.divide(a, b)
assert result == expect
def test_divide_divisor_is_zero(self, a=1, b=0):
result = self.cc.divide(a, b)
assert result == '除数不能为零'
def test_add(self):
assert 4 == Calc.add(2, 2)
assert 4 == Calc.add(1, 3)
# тестируем калькулятор здесь
from calculator import Calc
calc = Calc()
print("load registy testing...")
calc.add("123.456", "789.01")
calc.add("333.0")
print("stack testing 1... Check: проверяем алгоритм LIFO")
calc._Calc__stackPush(1)
calc._Calc__stackPush(2)
calc._Calc__stackPush(3)
print(calc._Calc__stackPop())
print(calc._Calc__stackPop())
print(calc._Calc__stackPop())
print("stack testing 2... Check: проверяем очистку стека")
calc._Calc__stackPush(1)
calc._Calc__stackPush(2)
calc._Calc__stackPush(3)
calc._Calc__stackClear()
print(calc._Calc__stackPop())
print("stack testing 3... Check: проверяем частичную очистку стека")
calc._Calc__stackPush(1)
calc._Calc__stackPush(2)
calc._Calc__stackPush(3)
def test_add(self):
assert 4 == Calc.add(2, 2)
assert 10 == Calc.add(4, 6)
