Question

我在jest应用中使用react native进行单元测试，这通常可以正常使用。

尝试使用realm会破坏测试并出现此错误：

 Runtime Error
  - Error: Cannot find module 'throwOnWrongReactAPI' from 'react-native.js'
        at Resolver.resolveModule (node_modules/jest-resolve/build/index.js:197:17)
        at Runtime._resolveModule (node_modules/jest-runtime/build/index.js:304:32)
        at Runtime._getNormalizedModuleID (node_modules/jest-runtime/build/index.js:465:31)
        at Runtime._shouldMock (node_modules/jest-runtime/build/index.js:511:27)
        at Runtime.requireModuleOrMock (node_modules/jest-runtime/build/index.js:263:14)
        at eval (node_modules/react-native/Libraries/react-native/react-native.js:178:32)
        at Object.<anonymous> (node_modules/react-native/Libraries/react-native/react-native.js:185:492)
        at Runtime._execModule (node_modules/jest-runtime/build/index.js:352:17)
        at Runtime.requireModule (node_modules/jest-runtime/build/index.js:202:14)
        at Runtime._generateMock (node_modules/jest-runtime/build/index.js:418:34)
1 test suite failed, 0 tests passed (0 total in 1 test suite, run time 6.482s)

这是测试文件：

jest.unmock('../classes/feed.js');
import Feed from '../classes/feed';

describe('Feed class', () => {
  it('returns [1, 2] when calling _slice([0, 1, 2], 1)', () => {
    expect(Feed._slice([0, 1, 2], 1)).toEqual([1, 2]);
  });
});

这是文件../classes/feed.js：

import Realm from 'realm';

class Feed {
  _slice(a, b) {
    return [1, 2];
  }
};

export default new Feed();

这是我的package.json：

"dependencies": {
  "babel-preset-react": "^6.11.1",
  "flux": "^2.1.1",
  "react": "^15.1",
  "react-native": "^0.28",
  "react-native-collapsible": "^0.6.0",
  "react-native-fbsdk": "^0.2.1",
  "react-native-scrollable-tab-view": "git+https://github.com/skv-headless/react-native-scrollable-tab-view.git",
  "react-native-vector-icons": "^2.0.2",
  "realm": "^0.13.2"
},
"devDependencies": {
  "babel-cli": "^6.10.1",
  "babel-jest": "^13.0.0",
  "babel-polyfill": "^6.9.1",
  "babel-preset-es2015": "^6.9.0",
  "jest-cli": "^13.0.0"
},
"jest": {
  "globals": {
    "__DEV__": true
  }
}

我的.babelrc：

{
  "presets": ["es2015", "react"]
}

调用throwOnWrongReactAPI这一事实表明模块react已被弃用（请参阅RN v0.25.1 release notes），但堆栈跟踪没有帮助，而且我< em>确实在过去解决了这个问题。

我做错了什么？

Answer 1

由runnung npm install --save-dev babel-preset-react-native解决并将.babelrc更改为

{
  "presets": ["react-native"]
}

开玩笑RN＆amp;领域：错误：无法找到模块＆＃39; throwOnWrongReactAPI＆＃39;来自＆＃39; react-native.js

1 个答案: