我正在尝试使用业力和Webpack中的打字稿为VUE文件创建代码覆盖率。

我在以后使用istanbul-instrumenter-loader作为后期处理，但是一直在获取。

对于纯.ts文件，一切正常，但是当包含vue文件时，我得到

build failed (from ./node_modules/istanbul-instrumenter-loader/dist/cjs.js):
TypeError: Cannot read property 'fileCoverage' of undefined

在调试istanbul-instrumenter-loader时，我注意到 ee.exit（path）; 是未定义的，因为对VUE文件进行了3次检测，前两个工作正常，但第三个崩溃了。

这是我的webpack配置

module.exports = {
node: {
    fs: 'empty'
},mode: 'development',devtool: 'inline-source-map',stats: 'verbose',resolve: {
    alias: {
        Home: path.resolve( __dirname ),Client: path.resolve( __dirname,'client/' ),ClientUtils$: path.resolve( __dirname,'client/utils/index.utils.client.ts' ),Views: path.resolve( __dirname,'client/views/' ),Components: path.resolve( __dirname,'client/components/' ),Constants$: path.resolve( buildPath,'shared/constants.js' )
    },extensions: [
        '.scss','.js','.ts','.vue'
    ]
},module: {
    rules: [
        {
            test: /\.vue$/,use: [
                {
                    loader: 'vue-loader'
                }
            ]
        },{
            test: /\.ts?$/,exclude: /node_modules/,use: [
                {
                    loader: 'cache-loader'
                },{
                    loader: 'thread-loader',options: {
                        workers: Math.max(require('os').cpus().length - 1,1)
                    }
                },{
                    loader: 'ts-loader',options: {
                        transpileonly: true,happypackMode: true,appendTsSuffixTo: [/\.vue$/]
                    }
                }
            ]
        },{
            test: /\.js$/,exclude: [/dist/,/node_modules/,/coverage_server/,/coverage_client/],loader: 'babel-loader'
        },{
            test: /\.ts$/,include: [/client/],exclude: [
                /node_modules/,/\.spec\.ts$/,/server/
            ],enforce: 'post',loader: 'istanbul-instrumenter-loader',options: {
                esModules: true
            }
        },{
            test: /\.(s*)css$/,use: [
                'vue-style-loader','css-loader','sass-loader'
            ]
        }
    ]
},plugins: [
    new VueLoaderPlugin()
};

我的karma.conf是

module.exports = function(config) {
let files = [];

if (config.grep) {
    files.push({ pattern: config.grep,type: 'module' });
} else {
    files.push('client/index.client.spec.ts');
}


config.set({
    frameworks: ["mocha","chai","sinon"],files,preprocessors: {
        'client/**/*spec.ts': ['webpack','sourcemap']
    },webpack: require('./webpack.test.js'),reporters: ['spec','dots','html','coverage-istanbul'],browsers: ['ChromeHeadless'],coverageReporter: {
        dir: './coverage_client',includeAllSources: true,reporters: [{ type: 'lcov',subdir: '.' },{ type: 'text' }]
    },coverageIstanbulReporter: {
        reports: ['text','lcov' ],dir: './coverage_client',fixWebpackSourcePaths: true,'report-config': {
            html: { outdir: 'html' }
        }
    },htmlReporter: {
        outputDir: 'karma_client_html',// where to put the reports
        templatePath: null,// set if you moved jasmine_template.html
        focusOnFailures: true,// reports show failures on start
        namedFiles: false,// name files instead of creating sub-directories
        pageTitle: null,// page title for reports; browser info by default
        urlFriendlyName: false,// simply replaces spaces with _ for files/dirs
        reportName: 'report_summary_filename',// report summary filename; browser info by default

        // experimental
        preserveDescribenesting: false,// folded suites stay folded
        foldAll: false // reports start folded (only with preserveDescribenesting)
    }
});
};

我的tsconfig是

    {
  "compilerOptions": {
    "incremental": true,"outDir": "./build/","target": "es2018","module": "CommonJS","lib": ["es2018","dom","dom.iterable"],"allowSyntheticDefaultImports": true,"inlinesourceMap": true,"sourceMap": false,"noImplicitAny": false,"strict": true,"alwaysStrict": true,"moduleResolution": "node","skipLibCheck": true,"esModuleInterop": true,"emitDecoratorMetadata": true,"experimentalDecorators": true,"types": [ "node","mocha","chai" ],"baseUrl": ".","paths": {
      "type-graphql": ["./node_modules/type-graphql/dist/browser-shim.ts"],"Client/*": ["./client/*"],"ClientUtils": ["./client/utils/index.utils.client.js"],"Views/*": ["./client/views/"],"Components/*": ["./client/components/*"],"Constants": ["./shared/constants.ts"]
    }

  },"include": [
    "./client/**/*.ts","./client/**/*.vue","./server/**/*.ts","./shared/**/*.ts"
  ],"exclude": [
    "**/*.spec.ts","node_modules"
  ],"files": ["./vue-shims.d.ts"]
}