In test ONLY: @react-native-community/react-native-device-info: NativeModule.RNDeviceInfo is null.

Bug

The error above happens when running yarn test. The app have been updated with the latest release of 2.2.2. But the tricky is that my app works fine when launching with react-native run-android. I can load the Event component without error.

Environment info

React native info output:

 PS C:\d\code\js\emps_fe> react-native link react-native-device-info
info iOS module "react-native-device-info" is already linked
info Android module "react-native-device-info" is already linked
PS C:\d\code\js\emps_fe> yarn test
yarn run v1.15.2
$ jest
 FAIL  __tests__/App-test.js
  ● Test suite failed to run

    @react-native-community/react-native-device-info: NativeModule.RNDeviceInfo is null. To fix this issue try these steps:
      • Run `react-native link react-native-device-info` in the project root.
      • Rebuild and re-run the app.
      • If you are using CocoaPods on iOS, run `pod install` in the `ios` directory and then rebuild and re-run the app. You may also need to re-open Xcode to get the new pods.
      If none of these fix the issue, please open an issue on the Github repository: https://github.com/react-native-community/react-native-device-info

      2 | import { SectionList, View, Image, StyleSheet, Text, TouchableOpacity, Platform, TouchableHighlight, AppRegistry } from 'react-native';
      3 | import moment from 'moment';
    > 4 | import DeviceInfo from 'react-native-device-info';
        | ^
      5 | import helper from "../../lib/helper";
      6 | import GLOBAL from "../../lib/global";
      7 |

      at Object.<anonymous> (node_modules/react-native-device-info/deviceinfo.js:19:11)
      at Object.<anonymous> (src/components/event/Event.js:4:1)

 FAIL  __tests__/Event.test.js
  ● Test suite failed to run

    @react-native-community/react-native-device-info: NativeModule.RNDeviceInfo is null. To fix this issue try these steps:
      • Run `react-native link react-native-device-info` in the project root.
      • Rebuild and re-run the app.
      • If you are using CocoaPods on iOS, run `pod install` in the `ios` directory and then rebuild and re-run the app. You may also need to re-open Xcode to get the new pods.
      If none of these fix the issue, please open an issue on the Github repository: https://github.com/react-native-community/react-native-device-info

      2 | import { SectionList, View, Image, StyleSheet, Text, TouchableOpacity, Platform, TouchableHighlight, AppRegistry } from 'react-native';
      3 | import moment from 'moment';
    > 4 | import DeviceInfo from 'react-native-device-info';
        | ^
      5 | import helper from "../../lib/helper";
      6 | import GLOBAL from "../../lib/global";
      7 |

      at Object.<anonymous> (node_modules/react-native-device-info/deviceinfo.js:19:11)
      at Object.<anonymous> (src/components/event/Event.js:4:1)

Test Suites: 2 failed, 2 total
Tests:       0 total
Snapshots:   0 total
Time:        6.493s
Ran all test suites.
error Command failed with exit code 1.

Library version: x.x.x Here is the package.json: “dependencies”: { “moment”: “^2.24.0”, “react”: “16.8.3”, “react-native”: “0.59.9”, “react-native-cli”: “^2.0.1”, “react-native-confirmation-code-field”: “^3.6.0”, “react-native-device-info”: “^2.2.2”, “react-native-elements”: “^1.1.0”, “react-native-gesture-handler”: “^1.3.0”, “react-native-gifted-chat”: “^0.9.11”, “react-native-keychain”: “^3.1.3”, “react-native-linear-gradient”: “^2.5.4”, “react-native-modal”: “^11.0.2”, “react-native-modal-datetime-picker”: “^7.4.2”, “react-native-paper”: “^2.16.0”, “react-native-segmented-control-tab”: “^3.4.0”, “react-native-vector-icons”: “^6.5.0”, “react-navigation”: “^3.11.0”, “socket.io-client”: “2.1.1” }, “devDependencies”: { “@babel/core”: “^7.4.5”, “@babel/runtime”: “^7.4.5”, “babel-jest”: “^24.8.0”, “jest”: “^24.8.0”, “metro-react-native-babel-preset”: “^0.54.1”, “react-test-renderer”: “16.8.3” },

Steps To Reproduce

…

Describe what you expected to happen:

Reproducible sample code

Here is the test code:

import ‘react-native’; import React from ‘react’; import App from ‘…/App’;

// Note: test renderer must be required after react-native. import renderer from ‘react-test-renderer’;

it(‘renders correctly’, () => { const tree = renderer.create(<Event />).toJSON(); expect(tree).toMatchSnapshot(); });

[mikehardy]

@tmaly1980 there really should be! I look forward to your contributed mock file pull request and will merge it happily

[dimlksin2]

● Test suite failed to run

@react-native-community/react-native-device-info: NativeModule.RNDeviceInfo is null. To fix this issue try these steps:
  • Run `react-native link react-native-device-info` in the project root.
  • Rebuild and re-run the app.
  • If you are using CocoaPods on iOS, run `pod install` in the `ios` directory and then rebuild and re-run the app. You may also need to re-open Xcode to get the new pods.
  If none of these fix the issue, please open an issue on the Github repository: https://github.com/react-native-community/react-native-device-info

  1 | import firebase from 'react-native-firebase';
> 2 | import DeviceInfo from 'react-native-device-info';