Python:如何实现多个动态mock.patch函数?
我试图在python中动态模拟/修补一个类的多个@property方法Python:如何实现多个动态mock.patch函数?,python,unit-testing,mocking,pytest,Python,Unit Testing,Mocking,Pytest,我试图在python中动态模拟/修补一个类的多个@property方法 class Dog(): ... @property def size(self): ..... @property def breed(self): ..... cases = [{"size":9, "breed":"doberman"}, {"size":2, "breed":"pug"}] @pytest.mark.param
class Dog():
...
@property
def size(self):
.....
@property
def breed(self):
.....
cases = [{"size":9, "breed":"doberman"}, {"size":2, "breed":"pug"}]
@pytest.mark.parametrize("case", list(cases.values()), ids=list(cases.keys()))
def test_properties(case):
dog = Dog()
mocks = ()
for m, v in case.items():
mocks += (mock.patch.object(dog, m, return_value=v),)
with mocks:
...
但是,我得到以下错误:
E属性错误:输入
显然,这不是根据如上所示的配置模拟多个属性的合适方法?请有人告诉我如何最好地实现这一点,谢谢 最简单的选择是使用
contextlib.ExitStack
:
另一种选择是使用pytest的
monkeypatch
fixture:除了Alex的答案外,以下解决了这个问题:
if "mock" in case:
for m,v in case["mock"].items():
def get_value(self):return v
monkeypatch.setattr(State, m, property(get_value))
cases.values()
?它是对每个案例进行迭代的dictpytest列表
if "mock" in case:
for m,v in case["mock"].items():
def get_value(self):return v
monkeypatch.setattr(State, m, property(get_value))