TypeError: Cannot read property 'OS' of undefined

v3.0.0

While testing application with Jest throws an error:

TypeError: Cannot read property 'OS' of undefined
      
      at createIconSet (node_modules/react-native-vector-icons/lib/create-icon-set.js:26:25)
      at Object.<anonymous> (node_modules/react-native-vector-icons/FontAwesome.js:9:28)
...
import FontAwesome from 'react-native-vector-icons/FontAwesome';

Issue Analytics

State:
Created 6 years ago
Comments:5

Top GitHub Comments

10reactions

linhnh123commented, Jul 6, 2017

@iegik Try it

jest.mock('react-native', () => ({
  NativeModules: {
    RNPasscodeStatus: {
      supported: jest.fn(),
      status: jest.fn(),
      get: jest.fn(),
    }
  },
  StyleSheet: {
    create: () => ({})
  },
  Platform: {
    OS: jest.fn(() => 'android'),
    version: jest.fn(() => 25),
  },
}));

1reaction

FDiskascommented, Jan 30, 2020

does not works for me also 🎩 TypeError: Super expression must either be null or a function

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