节点打字稿项目中的玩笑覆盖率始终返回空

Question

我正在开发后端 Typescript 项目，我正在尝试获取单元测试用例的覆盖率报告。Jest 在终端和 html 报告中返回空的覆盖率报告，没有说明任何内容。我也尝试过，-- --coverage --watchAll=false但它也返回空文档。

包.json

"scripts":{

    "unit-test": "jest --config='./config/jest/jest_unit.config.js' --forceExit --detectOpenHandles",

}

is_unit.config.js

/**

 * @file Jest Unit Test Configuration File

 */

module.exports = {

  roots: ['../../tests'],

  testRegex: '.*_unit.test.(js|ts|tsx)?$',

  globals: {

    'ts-jest': {

      tsConfig: 'tsconfig.json',

    },

  },

  moduleFileExtensions: ['ts', 'js'],

  transform: {

    '^.+\\.(ts|tsx)$': 'ts-jest',

  },

  testEnvironment: 'node',

  reporters: [

    'default',

    [

      '../../node_modules/jest-html-reporter',

      {

        pageTitle: 'Unit Test Report',

        outputPath: 'tests/reports/unit-test-report.html',

        includeFailureMsg: true,

      },

    ],

  ],

  collectCoverage: true,

  collectCoverageFrom: [

    '../../api/**/*.ts'

  ],

  moduleFileExtensions: ["ts", "js", "json"],

  coverageDirectory: "../../coverage",

  coveragePathIgnorePatterns: [

    "<rootDir>/node_modules"

  ],

  coverageReporters: [

    "json",

    "lcov",

    "text"

  ],

  coverageThreshold: {

    "global": {

      "branches": 100,

      "functions": 100,

      "lines": 100,

      "statements": 100

    }

  },

};

文件夹结构

|-- app

    |-- controllers

    |-- schemas

|-- config

    |-- jest

        |-- jest_unit.config.js

|-- package.json

|-- tests

    |-- api

        |-- modules

            |-- m1

                |-- controllers

                    |-- m1_controller_unit.test.ts

                    |-- m1_controller_integration.test.ts

            |-- m2

                |-- models

                    |-- m1_model_unit.test.ts

                    |-- m1_model_integration.test.ts

            |-- m3

                |-- schemas

                    |-- m1_schema_unit.test.ts

                    |-- m1_schema_integration.test.ts

Jest Coverage htm 和终端显示没有覆盖线

Answer 1

我可以通过将配置文件移至根目录来解决此问题。在这个配置中一切都很好。我不知道为什么jest会有这样的行为。更新结构文件夹结构|-- app&nbsp; &nbsp; |-- controllers&nbsp; &nbsp; |-- schemas|-- jest_unit.config.js|-- package.json|-- tests&nbsp; &nbsp; |-- api&nbsp; &nbsp; &nbsp; &nbsp; |-- modules&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m1&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- controllers&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m1_controller_unit.test.ts&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m1_controller_integration.test.ts&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m2&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- models&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m1_model_unit.test.ts&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m1_model_integration.test.ts&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- schemas&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m1_schema_unit.test.ts&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; |-- m1_schema_integration.test.ts包.json"scripts":{&nbsp; &nbsp; "unit-test": "jest --config='./jest_unit.config.js' --forceExit --detectOpenHandles",}

Answer 2

尝试collectCoverageFrom按如下方式更改：  collectCoverageFrom: [    '../../tests/**'  ],**递归地包含所有文件的方法。

Answer 3

我用这个工作了包.json..."scripts": {&nbsp; &nbsp; &nbsp; &nbsp; ...&nbsp; &nbsp; &nbsp; &nbsp; "test": "jest --maxWorkers=1 --coverage"...is.config.jsmodule.exports = {&nbsp; &nbsp; verbose: true,&nbsp; &nbsp; preset: 'ts-jest',&nbsp; &nbsp; testEnvironment: 'node',&nbsp; &nbsp; globals: {&nbsp; &nbsp; &nbsp; &nbsp; 'ts-jest': {&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; isolatedModules: true&nbsp; &nbsp; &nbsp; &nbsp; }&nbsp; &nbsp; },&nbsp; &nbsp; testPathIgnorePatterns: ['.d.ts', '.js'],&nbsp; &nbsp; collectCoverageFrom: [&nbsp; &nbsp; &nbsp; &nbsp; '**/*.ts',&nbsp; &nbsp; &nbsp; &nbsp; '!**/build/**',&nbsp; &nbsp; &nbsp; &nbsp; '!**/node_modules/**',&nbsp; &nbsp; &nbsp; &nbsp; '!**/vendor/**'&nbsp; &nbsp; ]};

Answer 4

我也随机面临这个问题，我没有解决办法或不知道为什么，但清除缓存并再次运行它总是有效的：jest --clearCachejest --coverage我相信这可能与 ts-jest 有关，而不是笑话本身。