Python 已访问模拟实例上的Assert属性

我如何断言a和/或a上的属性已被访问

比如说,

from unittest.mock import MagicMock

def foo(x):
    a = x.value

m = MagicMock()
foo(m)
m.attr_accessed('value')    # method that does not exist but I wish did; should return True

---

检查

foo

试图访问

m.value

的实际方法是什么？

您可以按照说明使用PropertyMock

e、 g

from unittest.mock import MagicMock, PropertyMock

def foo(x):
    a = x.value

m = MagicMock()
p = PropertyMock()
type(m).value = p
foo(m)
p.assert_called_once_with()