角度应用程序的 Stryker 突变测试找不到 karma 插件

编程问答 2022-04-23

问题描述

我正在尝试为我的 angular 应用程序创建一个配置以进行一些突变测试，并决定使用 stryker。 我已经初始化了 stryker 并为它创建了配置，它是这样的：

/**
* @type {import('@stryker-mutator/api/core').StrykerOptions}
 */
module.exports = {
  _comment:
    "This config was generated using 'stryker init'. Please see the guide for more information: https://stryker-mutator.io/docs/stryker-js/guides/angular",mutate: [
    "src/**/*.ts","!=src/**/*.spec.ts","!src/test.ts","!src/environments/*.ts",],testRunner: "jest","jest": {
    "projectType": "custom","configFile": "jest.config.js","config": {
      "testEnvironment": "jest-environment-jsdom-sixteen"
    },"enableFindRelatedTests": true,},reporters: ["progress","clear-text","html"],concurrency: 4,concurrency_comment:
    "Recommended to use about half of your available cores when running stryker with angular",coverageAnalysis: "perTest",};

您可以清楚地看到我使用“Jest”作为我的测试运行器，但是当我运行“stryker run”命令时，我收到以下消息 -

WARN PluginLoader Cannot find plugin "C:\Users\avalchev\IdeaProjects\solution-builder\node_modules\@stryker-mutator\karma-runner".
  Did you forget to install it ?
  npm install C:\Users\myUser\IdeaProjects\solution-builder\node_modules\@stryker-mutator\karma-runner --save-dev

此警告消息会反复出现，直到我收到此错误：

ERROR DryRunExecutor Initial test run timed out!
(10452) ERROR Stryker Unexpected error occurred while running Stryker Error: Something went wrong in the initial test run

我对 stryker 和 angular 总体上还是很陌生，所以也许我在这里遗漏了一些重要的东西，但我很惊讶在这种情况下需要 karma，当我配置了不同的测试运行程序时。

解决方法

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angularangularmutation-testingstrykertestingtypescripttypescripttypescript