Mocha无法识别JSX
我正在尝试通过使用摩卡咖啡和酶来更新单元测试。我正在测试的代码是在ES6中,使用JSX和React。
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)
我通过通过browserify运行源代码并将其放在测试目录中来证明它不是mocha /
enzyme本身,从而成功运行了该测试。我的问题只是试图正确解决大口魔术。
回答:
对于Babel 6的用户来说,这是一个非常普遍的问题,Babel 6本身(babel-core)什么也没做。它要求在转换过程中将转换/插件提供给它。
Babel提供了许多常用插件作为预设。常见的阵营项目babel-preset-2015
,babel-preset-react
和babel-
preset-stage-0。在npm安装它们之后,添加一个.babelrc
看起来像这样的配置文件:
{ "presets": ["react", "es2015", "stage-0"]
}
对于带有gulp签出的mocha,此堆栈gulp-mocha如何通过编译器标志?。
并在此处阅读有关一般设置Babel 6的信息https://babeljs.io/blog/2015/10/31/setting-up-
babel-6
以上是 Mocha无法识别JSX 的全部内容, 来源链接: utcz.com/qa/397821.html