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[英]How to mock a class method that is called from another class with pytest_mock
[英]Python Mock - check if method was called from another class?
當這些方法來自不同的類時,如何檢查方法是否在另一個方法內調用?
如果它們來自同一班級,我可以這樣做:
from unittest import mock
class A():
def method_a(self):
pass
def method_b(self):
self.method_a()
a = A()
a.method_a = mock.MagicMock()
a.method_b()
a.method_a.assert_called_once_with()
但是,如果method_a
來自不同的類,那么它將引發AssertionError
而不被調用。
我該如何做同樣的檢查,是否需要這些類(並且我想檢查method_b
調用method_a
)?
class A():
def method_a(self):
pass
class B():
def method_b(self):
A().method_a()
您只A
在與B
相同的上下文中對A
進行存根,並根據其調用方式進行驗證。 例:
>>> class B():
... def method_b(self):
... A().method_a()
...
>>> A = mock.MagicMock()
>>> A().method_a.called
False
>>> b = B()
>>> b.method_b()
>>> A().method_a.called
True
>>>
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