如何从 Code Coverage Istanbul Reporter 中排除模拟文件

Question

我有一个关于 Istanbul Reporter 的问题，用于报告我在 angular 6 应用程序中的单元测试覆盖率。

我的问题是：渲染覆盖率时，我在已测试文件列表中看到了模拟，显然这些模拟没有经过测试，这给了我错误的覆盖率统计数据。

这是我的 karma.conf 同事设置的文件，我想知道您是否知道如何排除这些模拟文件。

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'), reports: [ 'html', 'lcovonly' ],
      fixWebpackSourcePaths: true
    },
    angularCli: {
      environment: 'local'
    },
    reporters: ['progress', 'kjhtml'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['Chrome'],
    singleRun: false
  });
};

我在 Whosebug 上看到它可以通过在 tsconfig.spec.json 中添加一个排除来完成，但即使通过重新运行代码覆盖，它仍然包含它们。

{
  "extends": "../../tsconfig.json",
  "compilerOptions": {
    "outDir": "../../out-tsc/spec",
    "module": "commonjs",
    "types": [
      "jasmine",
      "node"
    ],
    "typeRoots": [ "../node_modules/@types" ]
  },
  "files": [
    "src/test.ts",
    "src/polyfills.ts"
  ],
  "include": [
    "**/*.spec.ts",
    "**/*.d.ts"
  ],
  "exclude": [
    "/**/*mock*.ts"
  ]
}

我的模拟文件在每个 module/feature 的 tests/mocks 文件夹中，名为 "mock-whatevertheymock.ts"

给运行的命令是

test:wc-dogs": "ng test --project=wc-dogs--code-coverage

感谢您的帮助

Answer 1

您应该将排除添加到 karma 配置中。

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'), reports: [ 'html', 'lcovonly' ],
      fixWebpackSourcePaths: true
    },
    angularCli: {
      environment: 'local'
    },
    reporters: ['progress', 'kjhtml'],
    port: 9876,
    colors: true,
    logLevel: config.LOG_INFO,
    autoWatch: true,
    browsers: ['Chrome'],
    exclude: ["/**/*mock*.ts"],
    singleRun: false
  });
};

Answer 2

谢谢大家，解决方案是在angular.json

中添加codeCoverageExclude选项

   "test": {
              "builder": "@angular-devkit/build-angular:karma",
              "options": {
                "main": "projects/wc-claims/src/test.ts",
                "polyfills": "projects/wc-claims/src/polyfills.ts",
                "tsConfig": "projects/wc-claims/tsconfig.spec.json",
                "karmaConfig": "projects/wc-claims/karma.conf.js",
                "styles": [
                  "projects/wc-claims/src/styles.css"
                ],
                "scripts": [],
                "assets": [
                  "projects/wc-claims/src/favicon.ico",
                  "projects/wc-claims/src/assets"
                ],
                "codeCoverageExclude": [
                    "/**/*mock*.ts"
                ]
              }
            },

如何从 Code Coverage Istanbul Reporter 中排除模拟文件

How to exclude mock files from Code Coverage Istanbul Reporter

javascript

unit-testing

jasmine

karma-runner

angular