无法访问运行时设置的模拟属性

Question

我运行对带有模拟对象的方法进行了一些单元测试。在方法中设置了属性，但我似乎无法在单元测试中访问它们。当我尝试取回模拟对象时，不是我尝试访问的字符串

这是我的单元测试

    @mock.patch("bpy.data.cameras.new")
    def test_load_camera(self, mock_camera_data):
        loader = self.SceneLoader(self.json_data)
        self.mock_bpy.context.scene.objects.link.return_value = 5
        cam_data = {"name": "camera 1",
                    "type": "PERSP",
                    "lens_length": 50.0,
                    "lens_unit": "MILLIMETERS",
                    "translation": [
                        4.5,
                        74,
                        67
                    ],
                    "rotation": [
                        -0.008,
                        -0.002,
                        0.397,
                        0.918
                    ]
                    }
        data = mock.Mock()
        mock_camera_data.return_value = data
        loader._load_camera(cam_data)
        assert mock_camera_data.called_with("Camera")
        assert data.type == "PERSP"

我测试的方法是

def _load_camera(self, cam_data):
        camera_data = bpy.data.cameras.new("Camera")
        camera_data.type = cam_data["type"]

当我运行进行单元测试时，我得到这个错误

AssertionError: assert <Mock name='new().type' id='140691645666360'> == 'PERSP'
E        +  where <Mock name='new().type' id='140691645666360'> = <Mock name='new()' id='140691645594760'>.type```

Answer 1

想通了。我需要做配置模拟所以代码现在看起来像

    data = mock.Mock()
    data.configure_mock(type=None)
    mock_camera_data.return_value = data
    loader._load_camera(cam_data)

您需要先在模拟中 configure/set 该属性，以便稍后访问它。现在可以在方法运行

之后访问属性 "type"

无法访问运行时设置的模拟属性

Unable to access mock attributes that were set while running

python

unit-testing

mocking

pytest

magicmock

无法访问 运行 时设置的模拟属性

Unable to access mock attributes that were set while running

python

unit-testing

mocking

pytest

magicmock

无法访问运行时设置的模拟属性