由于反应本机权限，测试失败。

Question

测试由于反应本机权限而失败

输出：

react-native-permissions: NativeModule.RNPermissions is null. To fix this issue try these steps:
• If you are using CocoaPods on iOS, run pod install in the ios directory and then clean, rebuild and re-run the app. You may also need to re-open Xcode to get the new pods.
• If you are getting this error while unit testing you need to mock the native module. You can use this to get started: https://github.com/react-native-community/react-native-permissions/blob/master/mock.js
If none of these fix the issue, please open an issue on the Github repository: https://github.com/react-native-community/react-native-permissions

  at Object.<anonymous> (node_modules/react-native-qrcode-scanner/node_modules/react-native-permissions/lib/commonjs/index.ts:6:9)
  at Object.<anonymous> (node_modules/react-native-qrcode-scanner/index.js:19:1)

平台：操作系统和安卓系统

在安装react-native-qrcode-scanner和react-native-permissions之前，所有测试都是正常的，工作正常。

这是我的输出附加了我所面临的错误

我还在项目的根dir中的jest.setup.js文件中模拟了react-native-permissions，如下所示，它仍然不起作用。

jest.mock('react-native-permissions', () =>
  require('react-native-permissions/mock'),
);

在安装时，我忽略了这个pakage所需的ios信任，因为我只在为android开发ubuntu，只有。

感谢你的帮助

Answer 1

我找到了两种解决问题的方法

1.测试文件中的模拟react-native-qrcode-scanner，这是单个文件的解决方案，如下所示，导入后在测试文件的顶部写入react-native-qrcode-scanner的模拟

jest.mock('react-native-qrcode-scanner', () => jest.fn());

1. 模拟react-native-qrcode-scanner在项目的根dir中的jest.setup.js文件中，这是所有测试文件的解决方案，如下所示：

在根dir中的jest.setup.js文件中写入react-native-qrcode-scanner的模拟，如下所示

jest.mock(
  'react-native-qrcode-scanner/node_modules/react-native-permissions',
  () => require('react-native-permissions/mock'),
);