Question

我正在尝试使用mocha和酶来更新我的单元测试。我正在测试的代码是在ES6中，使用JSX和React。

我在测试脚本中无法让mocha在JSX上出错。

测试脚本：

import React from 'react';
import assert from 'assert';
import { shallow } from 'enzyme';
import SamplePageMain from '../SamplePageMain';

describe('<SamplePageMain />', () => {

    var samplePage = shallow(<SamplePageMain />);

    it('should render', function () {
        assert.notEqual(samplePage, null);
    });

}）;

gulpfile.js：

require('babel-core/register');

...

gulp.task('test', function() {
    return gulp.src('scripts/**/test/*.js', {read: false})
        .pipe(mocha());
});

，输出为：

gulp test

[16:19:06] Using gulpfile ~/dev/bikini/gulpfile.js
[16:19:06] Starting 'test'...
[16:19:06] 'test' errored after 62 ms
[16:19:06] SyntaxError in plugin 'gulp-mocha'
Message:
        /Users/me/dev/bikini/scripts/components/test/samplePageMain.js:     Unexpected token (9:26)
Details:
    pos: 206
    loc: [object Object]
    _babel: true
    codeFrame:    7 | 
   8 | 
>  9 |  var samplePage = shallow(<SamplePageMain />);
     |                           ^
  10 | 
  11 |  it('should render', function () {
  12 |      assert.notEqual(samplePage, null);
Stack:
SyntaxError:     /Users/me/dev/bikini/scripts/components/test/samplePageMain.js:     Unexpected token (9:26)
   7 | 
   8 | 
>  9 |  var samplePage = shallow(<SamplePageMain />);
     |                           ^
  10 | 
  11 |  it('should render', function () {
  12 |      assert.notEqual(samplePage, null);
    at Parser.pp.raise (/Users/me/dev/bikini/node_modules/babel-    register/node_modules/babel-core/node_modules/babylon/index.js:1425:13)
    at Parser.pp.unexpected (/Users/me/dev/bikini/node_modules/babel-    register/node_modules/babel-core/node_modules/babylon/index.js:2907:8)
    at Parser.pp.parseExprAtom     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:754:12)
    at Parser.pp.parseExprSubscripts     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:509:19)
    at Parser.pp.parseMaybeUnary     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:489:19)
    at Parser.pp.parseExprOps     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:420:19)
    at Parser.pp.parseMaybeConditional     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:402:19)
    at Parser.pp.parseMaybeAssign     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:365:19)
    at Parser.pp.parseExprListItem     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:1232:16)
    at Parser.pp.parseCallExpressionArguments     (/Users/me/dev/bikini/node_modules/babel-register/node_modules/babel-    core/node_modules/babylon/index.js:585:20)

我已经通过browserify运行源代码并将其放入测试目录中来成功运行测试，以证明它不是mocha /酶本身。我的问题只是试图让gulp魔法正确。

Answer 1

这对于Babel 6的用户来说是一个非常普遍的问题，Babel 6本身（babel-core）没有做任何事情。它要求在转换过程中将变换/插件送入它。

Babel提供捆绑的常见插件作为预设。 React项目的共同点是babel-preset-2015，babel-preset-react和babel-preset-stage-0。在安装它们之后，添加一个.babelrc配置文件，如下所示：

{
  "presets": ["react", "es2015", "stage-0"]
}

对于带有gulp checkout的mocha这个堆栈gulp-mocha how to pass the compilers flag?。

请在此处阅读有关设置Babel 6 https://babeljs.io/blog/2015/10/31/setting-up-babel-6

的信息

摩卡不会识别JSX

1 个答案: