假设我有这样一个函数:

def do_something(dict_obj):
   # access to the dict_obj then do some stuff
   eg.
   if dict_obj['doors']:
      do_something_with_doors()
   map_car_make(dict_obj['make'])
   ...

   if dict_obj['is_active']:
        do_something_else()

我想嘲笑dict_objis_active元素,而不关心其他元素,我该怎么做?

最佳答案

如何在Python中模拟字典是一个很好/直接的问题,其他人可以搜索,因此:
我建议MagicMock而不是模拟
过载__getitem__

from unittest.mock import MagicMock

m = MagicMock()
d = {'key_1': 'value'}
m.__getitem__.side_effect = d.__getitem__

# dict behaviour
m['key_1'] # => 'value'
m['key_2'] # => raise KeyError

# mock behaviour
m.foo(42)
m.foo.assert_called_once_with(43) # => raise AssertionError

相关问题:
How to let MagicMock behave like a dict?
Understanding __getitem__ method

10-06 14:07