相关疑难解决方法(0)

我在使用ES6编写的Jest(v16.0.1)测试测试使用Typescript(v2.0.3)编写的React组件时遇到了一些问题.

我正在使用ts-jest(v0.1.8)预处理器和package.json的相关部分看起来像

  "jest": {
    "scriptPreprocessor": "<rootDir>/node_modules/ts-jest/preprocessor.js",
    "testRegex": "(/__tests__/.*|\\.(test|spec))\\.(ts|tsx|js)$",
    "moduleFileExtensions": [
      "ts",
      "tsx",
      "js"
    ]
  } 

但是当我运行测试时,我得到:

 FAIL  app/components/__tests__/TestTotalNumberOfTeapots.js
  ? Test suite failed to run

    /Users/aaron/Desktop/teabot_stats/app/components/__tests__/TestTotalNumberOfTeapots.js:1
    ({"Object.<anonymous>":function(module,exports,require,__dirname,__filename,global,jest){import React from 'react';
                                                                                             ^^^^^^
    SyntaxError: Unexpected token import

      at transformAndBuildScript (node_modules/jest-runtime/build/transform.js:284:10)

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        0.673s
Ran all test suites.

我的测试看起来像

import React from 'react';
import TotalNumberOfTeapots from '../TotalNumberOfTeapots.tsx';
import renderer from 'react-test-renderer';

it('renders correctly', () => {
  const tree = renderer.create(
    <TotalNumberOfTeapots numberOfTeapots='1' /> …