Chrome 87.0.4280 (Windows 10.0.0):执行了 0 个空值(跳过 229)错误(34.875 秒/0 秒)

Chrome 87.0.4280 (Windows 10.0.0): Executed 0 of null (skipped 229) ERROR (34.875 secs / 0 secs)

我正在尝试使用 jasmine 3.2.0 和 karma 测试我的项目 angular 8.3.26,但它向我显示此错误:

Chrome 87.0.4280 (Windows 10.0.0) ERROR
DisconnectedClient disconnected from CONNECTED state (ping timeout)

Chrome 87.0.4280 (Windows 10.0.0): Executed 0 of null (skipped 229) ERROR (34.875 secs / 0 secs)

karma.conf.js

// Karma configuration file, see link for more information
// https://karma-runner.github.io/1.0/config/configuration-file.html

 module.exports = function (config) {
 config.set({
    basePath: '',
    frameworks: ['jasmine', '@angular-devkit/build-angular'],
    plugins: [
        require('karma-jasmine'),
        require('karma-chrome-launcher'),
        require('karma-jasmine-html-reporter'),
        require('karma-coverage-istanbul-reporter'),
        require('@angular-devkit/build-angular/plugins/karma')
    ],
    client: {
        clearContext: false // leave Jasmine Spec Runner output visible in browser
    },
    coverageIstanbulReporter: {
        dir: require('path').join(__dirname, './coverage/my-pro'),
        reports: ['html', 'lcovonly', 'text-summary'],
        fixWebpackSourcePaths: true
    },
    reporters: ['progress', 'kjhtml'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['Chrome'],
    singleRun: false,
    restartOnFileChange: true,
    captureTimeout: 60000, // it was already there
    browserDisconnectTolerance : 1,
    browserNoActivityTimeout: 60000,
    browserDisconnectTimeout: 60000
   });
  };

查看了Whosebug中的解决方案,但问题并没有解决,

你有解决这个问题的意见吗?

这是我的计算机资源的问题。 由于源映射处于活动状态并且给我的计算机带来了很大的负载。我使用以下命令禁用它以 运行 测试:

ng test --source-map=false

这也很重要。如果您的应用程序太大。要 运行 测试,在您正在编写测试的 .spec.ts 文件中,在 describe 之前使用 f 以仅关注此测试文件。

fdescribe('my-test', () => {....}