【发布时间】:2018-02-21 22:19:34
【问题描述】:
我正在尝试将rewire 与我的 Karma(Webpack + Typescript)单元测试一起使用。我的单元测试是用 Typescript 编写的,与 Webpack 捆绑在一起,然后使用 Karma 运行。我不断收到错误:
PhantomJS 2.1.1 (Windows 7 0.0.0) ERROR
Error: Cannot find module "module"
at src/myTest.spec.ts:187
我查看了Rewire的代码,问题出在一行
var Module = require("module"),
我知道有一个Webpack Rewire 插件,但是当我使用它时,我遇到了与already reported in an issue 相同的问题。
我所有不使用rewire 的测试都可以正常工作。
这是我的测试文件:
import rewire = require("rewire");
const decorators = rewire("./decorators");
describe('something', () => {
it('should do something', () => {
decorators.__set__('Test', () => 'hello');
// In know this is pointless, but it's just to make sure that rewire works.
expect(decorators.Test).toBe('hello');
});
});
这是我的 webpack 配置:
var webpack = require('webpack');
var path = require('path');
var fs = require('fs');
var nodeModules = {};
fs.readdirSync('node_modules')
.filter(function (x) {
return ['.bin'].indexOf(x) === -1;
})
.forEach(function (mod) {
nodeModules[mod] = 'commonjs ' + mod;
});
// Our Webpack Defaults
var webpackConfig = {
entry: './src/index.ts',
target: 'node',
module: {
loaders: [
{test: /\.ts$/, loaders: ['ts-loader'], exclude: /node_modules/}
]
},
plugins: [
new webpack.BannerPlugin({banner: 'require("source-map-support").install();', raw: true, entryOnly: false}),
new webpack.optimize.UglifyJsPlugin({sourceMap: true}),
new webpack.optimize.AggressiveMergingPlugin(),
],
output: {
path: path.resolve(__dirname, './dist'),
filename: 'index.js',
sourceMapFilename: 'index.map'
},
externals: nodeModules,
devtool: 'source-map',
resolve: {
extensions: ['.ts', '.js']
}
};
module.exports = webpackConfig;
这是我karma.conf.js 的(相关)部分:
frameworks: ['jasmine'],
files: [
'src/**/*.spec.ts',
'test/**/*.ts'
],
exclude: [],
webpack: {
devtool: webpackConfig.devtool,
module: webpackConfig.module,
resolve: webpackConfig.resolve,
},
webpackMiddleware: {
quiet: true,
stats: {
colors: true
}
},
preprocessors: {
'src/**/*.spec.ts': ['webpack', 'sourcemap'],
'test/**/*.ts': ['webpack', 'sourcemap']
},
【问题讨论】:
-
嘿,您能找到上述解决方案吗?我有同样的问题。
-
不,我最终使用了另一个库:)
-
哪个库?
-
我使用 MochaJs 是因为 Jasmine 仅用于前端代码。
标签: node.js typescript webpack karma-runner