TS importations par défaut avec Jest maquette

Question

J'écris des tests pour réagir-natif avec Jest et Typescript, mais je suis avec un problème quand je me moque d'un module qui utilise export default et export.

ma maquette est la suivante:

// test.setup.js 
jest.mock('react-native-text-input-mask',() => ({ 
    default: 'TextInputMask', 
    mask:() => {}, 
    unmask:() => {}, 
})); 

mais la plaisanterie ne peut pas utiliser l'erreur de la cause default e dans mon code lorsque le test est en cours d'exécution:

import React, { Component } from 'react' 
import { } from 'react-native' 
import TextInputMask, { mask } from 'react-native-text-input-mask' 

console.log(TextInputMask) // {'default': 'TextInputMask', mask: [Function]} 
console.log(mask) // [Function] 

export default class Comp extends Component<> { 
    constructor(props) { 
     super(props) 
    } 

    render(): JSX.Element { 
     return (
      <TextInputMask // error in this line 
       mask={'[0000]'} 
      /> 
     ) 
    } 
} 

Erreur dans le test:

Invariant Violation: Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: object. 

Comment puis-je simuler un module avec default export et export?

ma config plaisanterie:

// package.json 
"devDependencies": { 
    "@types/fbemitter": "2.0.32", 
    "@types/jest": "21.1.1", 
    "@types/prop-types": "15.5.2", 
    "@types/react": "16.0.9", 
    "@types/react-intl": "2.3.2", 
    "@types/react-native": "0.48.9", 
    "@types/react-navigation": "1.0.20", 
    "@types/react-redux": "5.0.9", 
    "@types/react-test-renderer": "15.5.4", 
    "@types/redux-immutable-state-invariant": "2.0.2", 
    "@types/redux-mock-store": "0.0.11", 
    "@types/redux-storage": "4.0.10", 
    "babel-core": "6.26.0", 
    "babel-jest": "21.2.0", 
    "babel-plugin-jest-hoist": "21.2.0", 
    "babel-plugin-module-resolver": "2.7.1", 
    "babel-plugin-transform-decorators-legacy": "1.3.4", 
    "babel-preset-react-native": "4.0.0", 
    "chai": "4.1.2", 
    "chai-as-promised": "7.1.1", 
    "colors": "1.1.2", 
    "commitizen": "2.9.6", 
    "cz-conventional-changelog": "2.0.0", 
    "enzyme": "3.0.0", 
    "fbemitter": "2.1.1", 
    "husky": "^0.14.3", 
    "jest": "21.2.1", 
    "jest-cli": "21.2.1", 
    "jest-serializer-enzyme": "1.0.0", 
    "mocha": "3.5.3", 
    "plop": "1.9.0", 
    "prettier": "1.7.3", 
    "react-addons-test-utils": "15.6.2", 
    "react-dom": "16.0.0", 
    "react-native-debugger-open": "0.3.12", 
    "react-test-renderer": "16.0.0", 
    "redux-devtools-extension": "2.13.2", 
    "redux-immutable-state-invariant": "2.1.0", 
    "redux-mock-store": "1.3.0", 
    "rimraf": "2.6.2", 
    "selenium-webdriver": "3.5.0", 
    "sinon": "4.0.0", 
    "standard-version": "4.2.0", 
    "ts-jest": "21.0.1", 
    "tslint": "5.7.0", 
    "tslint-config-prettier": "1.5.0", 
    "tslint-react": "3.2.0", 
    "typescript": "2.5.3", 
    "wd": "1.4.1" 
}, 
"jest": { 
    "preset": "react-native", 
    "collectCoverage": true, 
    "collectCoverageFrom": [ 
     "src/**/*.{ts,tsx}", 
     "!src/**/*.test.{ts,tsx}", 
     "!src/**/*.d.ts", 
     "!build/**", 
     "!**/node_modules/**" 
    ], 
    "coverageDirectory": "coverage", 
    "moduleDirectories": [ 
     "node_modules", 
     "src" 
    ], 
    "moduleNameMapper": { 
     "\\.(jpg|jpeg|png|gif|eot|otf|webp|svg|ttf|woff|woff2|mp4|webm|wav|mp3|m4a|aac|oga)$": "<rootDir>/__scripts__/assetsTransformer.js", 
     "^@animations.+\\.(json)$": "<rootDir>/__scripts__/assetsTransformer.js" 
    }, 
    "moduleFileExtensions": [ 
     "js", 
     "jsx", 
     "json", 
     "ts", 
     "tsx", 
     "ios.ts", 
     "android.ts" 
    ], 
    "modulePathIgnorePatterns": [ 
     "<rootDir>/build/" 
    ], 
    "testRegex": "(/__tests__/.*|\\.(test|spec))\\.(ts|tsx|js)$", 
    "setupFiles": [ 
     "./__scripts__/test-setup.js" 
    ], 
    "testPathIgnorePatterns": [ 
     "<rootDir>/build/", 
     "<rootDir>/node_modules/" 
    ], 
    "transform": { 
     "^.+\\.js$": "<rootDir>/node_modules/babel-jest", 
     "^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js" 
    }, 
    "transformIgnorePatterns": [ 
     "node_modules/(?!react-native|tcomb-form-native|react-navigation|lottie-react-native|jail-monkey|redux-persist/es/storage)" 
    ], 
    "globals": { 
     "ts-jest": { 
      "useBabelrc": true 
     } 
    } 
}, 

ma config TS:

// tsconfig.json 
{ 
    "compilerOptions": { 
     "target": "es2015", 
     "module": "es2015", 
     "jsx": "react-native", 
     "watch": true, 
     "allowJs": true, 
     "sourceMap": true, 
     "preserveConstEnums": true, 
     "removeComments": true, 
     "lib": [ 
      "dom", 
      "es2017" 
     ], 
     "diagnostics": false, 
     "noImplicitAny": false, 
     "noImplicitUseStrict": false, 
     "strictNullChecks": false, 
     "noImplicitThis": false, 
     "moduleResolution": "node", 
     "outDir": "./build", 
     "rootDir": "./src", 
     "sourceRoot": ".", 
     "baseUrl": "./src", 
     "typeRoots": [ 
      "./src/types" 
     ], 
     "paths": { 
      "@assets/*": [ 
       "../assets/*" 
      ], 
      "@animations/*": [ 
       "../animations/*" 
      ] 
     }, 
     "allowSyntheticDefaultImports": true, 
     "experimentalDecorators": true 
    }, 
    "types": [ 
     "react", 
     "react-native", 
     "jest" 
    ], 
    "include": [ 
     "src/**/*" 
    ], 
    "exclude": [ 
     "index.android.js", 
     "index.ios.js", 
     "build", 
     "app", 
     "node_modules" 
    ], 
    "compileOnSave": true 
} 

Answer 1

je résoudre ce problème, la création d'une maquette pour le composant, comme ceci:

// __mocks__/react-native-text-input-mask.tsx 
import React from 'react' 

class TextInputMask extends React.Component { 
    render() { 
     return null 
    } 
} 

const mask = (mask: string, value: string, text: string => {}) => {} 
const unmask = (mask: string, masked: string, unmasked: string => {}) => {} 
const setMask = (node: any, mask: string) => {} 

export { mask, unmask, setMask } 
export default TextInputMask