如何重新定义 MagicMock __str__ 方法?
How to redefine MagicMock __str__ method?
我正在尝试为 Readthedocs 自动生成文档。我将一些依赖项模拟为 they suggest in FAQ,但是从函数的类型注释中我得到的文档的某些部分看起来像
Return type: <MagicMock id=‘140517266915680’>
这当然是不可接受的。所以我像这样重写了模拟:
from unittest.mock import Mock
class ModuleMock(Mock):
def __init__(self, path='', *args, **kwargs):
super().__init__(*args, *kwargs)
self.path = path
def __getattr__(self, name):
return ModuleMock(path=self.path + '.' + name)
def __repr__(self):
return self.path
所以我可以
>>> x = ModuleMock('x')
>>> x
x
>>> x.y.z
x.y.z
但是有了这个我得到了例外
...
File "<frozen importlib._bootstrap>", line 906, in _find_spec
File "<frozen importlib._bootstrap_external>", line 1280, in find_spec
File "<frozen importlib._bootstrap_external>", line 1246, in _get_spec
TypeError: 'ModuleMock' object is not iterable
当我改为尝试从 MagicMock
继承时,我得到 RecursionError
。
我应该怎么做才能正确隔离文档生成的依赖关系,并使该文档可读?
因为MagicMock使用了_mock_methods
和_mock_unsafe
属性,但是Mock没有(似乎) .
我用 Python 2.7
正确实施:
from mock import MagicMock
class ModuleMock(MagicMock):
def __init__(self, path='', *args, **kwargs):
super(ModuleMock, self).__init__(*args, **kwargs)
self.path = path
def __repr__(self):
return self.path
def __getattr__(self, name):
#print(name)
if name in ('_mock_methods', '_mock_unsafe'):
return super(ModuleMock, self).__getattr__(name)
return ModuleMock(self.path + "." + name)
if __name__ == '__main__':
x = ModuleMock('x')
print(x)
print(x.y.z)
因此,如果您在 __getattr__
中打印属性名称,您可以看到 MagicMock 有多个调用。
结果:
_mock_methods
_mock_methods
x
y
_mock_methods
z
_mock_methods
_mock_methods
x.y.z
我正在尝试为 Readthedocs 自动生成文档。我将一些依赖项模拟为 they suggest in FAQ,但是从函数的类型注释中我得到的文档的某些部分看起来像
Return type: <MagicMock id=‘140517266915680’>
这当然是不可接受的。所以我像这样重写了模拟:
from unittest.mock import Mock
class ModuleMock(Mock):
def __init__(self, path='', *args, **kwargs):
super().__init__(*args, *kwargs)
self.path = path
def __getattr__(self, name):
return ModuleMock(path=self.path + '.' + name)
def __repr__(self):
return self.path
所以我可以
>>> x = ModuleMock('x')
>>> x
x
>>> x.y.z
x.y.z
但是有了这个我得到了例外
...
File "<frozen importlib._bootstrap>", line 906, in _find_spec
File "<frozen importlib._bootstrap_external>", line 1280, in find_spec
File "<frozen importlib._bootstrap_external>", line 1246, in _get_spec
TypeError: 'ModuleMock' object is not iterable
当我改为尝试从 MagicMock
继承时,我得到 RecursionError
。
我应该怎么做才能正确隔离文档生成的依赖关系,并使该文档可读?
因为MagicMock使用了_mock_methods
和_mock_unsafe
属性,但是Mock没有(似乎) .
我用 Python 2.7
正确实施:
from mock import MagicMock
class ModuleMock(MagicMock):
def __init__(self, path='', *args, **kwargs):
super(ModuleMock, self).__init__(*args, **kwargs)
self.path = path
def __repr__(self):
return self.path
def __getattr__(self, name):
#print(name)
if name in ('_mock_methods', '_mock_unsafe'):
return super(ModuleMock, self).__getattr__(name)
return ModuleMock(self.path + "." + name)
if __name__ == '__main__':
x = ModuleMock('x')
print(x)
print(x.y.z)
因此,如果您在 __getattr__
中打印属性名称,您可以看到 MagicMock 有多个调用。
结果:
_mock_methods
_mock_methods
x
y
_mock_methods
z
_mock_methods
_mock_methods
x.y.z