mirror of
https://github.com/trezor/trezor-firmware.git
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49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
if False: # noqa
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from typing import Any
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class Mock:
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def __init__(self, return_value: Any = None, raises: BaseException = None) -> None:
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self.attrs = {}
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self.calls = []
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self.return_value = return_value
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self.raises = raises
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def __getattr__(self, key: str) -> Any:
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self.attrs.setdefault(key, Mock())
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return self.attrs[key]
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def __setattr__(self, name: str, value: Any) -> Any:
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self.attrs[name] = value
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return value
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def __call__(self, *args, **kwargs) -> Any:
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self.calls.append((args, kwargs))
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if self.raises is not None:
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raise self.raises
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return self.return_value
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class patch:
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MOCK_OBJECT = object()
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NO_VALUE = object()
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def __init__(self, obj: Any, attr: str, value: Any = MOCK_OBJECT) -> None:
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self.obj = obj
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self.attr = attr
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self.value = value
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self.orig_value = self.NO_VALUE
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def __enter__(self):
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if hasattr(self.obj, self.attr):
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self.orig_value = getattr(self.obj, self.attr)
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patch_value = self.value if self.value is not self.MOCK_OBJECT else Mock()
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setattr(self.obj, self.attr, patch_value)
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def __exit__(self, exc_type, exc_value, tb):
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if self.orig_value is self.NO_VALUE:
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delattr(self.obj, self.attr)
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else:
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setattr(self.obj, self.attr, self.orig_value)
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