Question

我正在尝试根据本

中使用的单元测试框架对反应项目进行单元测试

https://github.com/pheuter/essential-react

我的项目的单元测试设置与此类似。我的问题是它似乎不支持更少的js文件。每次我尝试运行一个测试文件时，其中包含较少的文件，我会从幻影js

收到此错误

PhantomJS 1.9.8（Mac OS X 0.0.0）错误错误：找不到模块＆＃34; ./ Dashboard.less＆＃34; at /Unit_Tests/main.js:26577

我的main.js文件看起来

/**
 * Test suite entry point
 */

// Babel Polyfill
import 'babel-core/polyfill';

import './routes/Home_Test';
//import './routes/Dashboard.less';

和我的karma.config.js

/**
 * This is the Karma configuration file. It contains information about this skeleton
 * that provides the test runner with instructions on how to run the tests and
 * generate the code coverage report.
 *
 * For more info, see: http://karma-runner.github.io/0.12/config/configuration-file.html
 */
module.exports = function(config) {
  config.set({

    /**
     * These are the files required to run the tests.
     *
     * The `Function.prototype.bind` polyfill is required by PhantomJS
     * because it uses an older version of JavaScript.
     */
    files: [
      './Unit_Tests/polyfill.js',
      './Unit_Tests/main.js'
    ],

    /**
     * The actual tests are preprocessed by the karma-webpack plugin, so that
     * their source can be properly transpiled.
     */
    preprocessors: {
      './Unit_Tests/main.js': ['webpack']
    },

    /**
     * We want to run the tests using the PhantomJS headless browser.
     * This is especially useful for continuous integration.
     */
    browsers: ['PhantomJS'],

    /**
     * Use Mocha as the test framework, Sinon for mocking, and
     * Chai for assertions.
     */
    frameworks: ['mocha', 'sinon-chai'],

    /**
     * After running the tests, return the results and generate a
     * code coverage report.
     */
    reporters: ['progress', 'coverage'],

    /**
     * When generating a code coverage report, use `lcov` format and
     * place the result in coverage/lcov.info
     *
     * This file will be sent to Coveralls by the `coveralls` npm script.
     */
    coverageReporter: {
      dir: 'coverage/',
      reporters: [
        { type: 'lcovonly', subdir: '.', file: 'lcov.info' },
        { type: 'html', subdir: 'html' }
      ]
    },

    /**
     * The configuration for the karma-webpack plugin.
     *
     * This is very similar to the main webpack.local.config.js, with the
     * exception of specifying an istanbul-transformer post loader so
     * that we can generate an accurate code coverage report.
     */
    webpack: {
      module: {
        loaders: [
          { test: /\.jsx?$/, exclude: /node_modules/, loader: "babel-loader?stage=0"}
        ],
        postLoaders: [{
          test: /\.jsx?$/,
          exclude: /(test|node_modules)\//,
          loader: 'istanbul-instrumenter'
        }]
      },
      resolve: {
        extensions: ['', '.js', '.jsx']
      }
    },

    /**
     * Configuration option to turn off verbose logging of webpack compilation.
     */
    webpackMiddleware: {
      noInfo: true
    },

    /**
     * Once the mocha test suite returns, we want to exit from the test runner as well.
     */
    singleRun: true,

    /**
     * List of plugins
     */
    plugins: [
      'karma-mocha',
      'karma-webpack',
      'karma-coverage',
      'karma-sinon-chai',
      'karma-phantomjs-launcher'
    ],
  });
}

我一直在寻找一个关于如何对包含较少但无法找到的文件进行单元测试的良好答案。我真的不关心单元测试css只是jsx文件。

Answer 1

想通了

    preprocessors: {
        './Unit_Tests/main.js': ['webpack'],
        '**/*.less': ['less']
    },

    webpack: {
        module: {
            loaders: [
                {test: /\.jsx?$/, exclude: /node_modules/, loader: "babel-loader?stage=0"},
                {test: /\.less$/, loader: "style!css!less"}
            ],
            postLoaders: [{
                test: /\.jsx?$/,
                exclude: /(test|node_modules)\//,
                loader: 'istanbul-instrumenter'
            }]
        },
        resolve: {
            extensions: ['', '.js', '.jsx', '.css', '.less']
        }
    },

更改您的karma.config.js以包含以下内容

使用React js的幻影js找不到更少的js文件

1 个答案: