Angular 伊斯坦布尔覆盖率报告中的标记异常

Question

我运行使用 Karma 进行单元测试并生成覆盖率报告，但是，彩色部分，如这些红色代码，似乎异常移动，如下所示：

相关库版本为：
"@angular/core": "^6.1.0",
"@angular/cli": "^6.1.1",
"@angular/compiler-cli": "^6.1.0",
"jasmine-core": "~3.1.0",
"jasmine-spec-reporter": "~4.2.1",
"karma": "~2.0.5",
"karma-chrome-launcher": "~2.2.0",
"karma-cli": "~1.0.1",
"karma-coverage-istanbul-reporter": "^2.0.1",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^1.2.0",

test.ts是：

// This file is required by karma.conf.js and loads recursively all the .spec and framework files

import 'zone.js/dist/long-stack-trace-zone';
import 'zone.js/dist/proxy.js';
import 'zone.js/dist/sync-test';
import 'zone.js/dist/jasmine-patch';
import 'zone.js/dist/async-test';
import 'zone.js/dist/fake-async-test';
import { getTestBed } from '@angular/core/testing';
import {
  BrowserDynamicTestingModule,
  platformBrowserDynamicTesting
} from '@angular/platform-browser-dynamic/testing';

// Unfortunately there's no typing for the `__karma__` variable. Just declare it as any.
declare const __karma__: any;
declare const require: any;

// Prevent Karma from running prematurely.
__karma__.loaded = function () {};

// First, initialize the Angular testing environment.
getTestBed().initTestEnvironment(
  BrowserDynamicTestingModule,
  platformBrowserDynamicTesting()
);
// Then we find all the tests.
const context = require.context('./', true, /\.spec\.ts$/);
// And load the modules.
context.keys().map(context);
// Finally, start Karma to run the tests.
__karma__.start();

package.json 是

{
  "name": "rubik-frontend",
  "version": "0.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "prestart": "npm run i18n",
    "start": "ng serve --proxy-config proxy.conf.json",
    "prebuild": "npm run i18n",
    "build": "ng build",
    "build:prod": "ng build --prod --aot",
    "prebuild:prod": "npm run i18n",
    "icon": "node scripts/generateIconSymbol",
    "i18n": "node scripts/compileI18n",
    "test": "ng test rubik-frontend --code-coverage",
    "test:single": "ng test rubik-frontend --watch=false",
    "lint": "ng lint",
    "lint:fix": "ng lint --fix --type-check",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^6.1.0",
    "@angular/cdk": "^6.4.1",
    "@angular/common": "^6.1.0",
    "@angular/compiler": "^6.1.0",
    "@angular/core": "^6.1.0",
    "@angular/forms": "^6.1.0",
    "@angular/http": "^6.1.0",
    "@angular/platform-browser": "^6.1.0",
    "@angular/platform-browser-dynamic": "^6.1.0",
    "@angular/router": "^6.1.0",
    "cheerio": "^1.0.0-rc.2",
    "core-js": "^2.5.5",
    "dom-to-image": "^2.6.0",
    "echarts": "^4.0.4",
    "jsplumb": "^2.7.3",
    "lodash-es": "^4.17.8",
    "ng2-dnd": "^5.0.2",
    "normalize.css": "^8.0.0",
    "path": "^0.12.7",
    "rxjs": "^6.2.2",
    "studio-ui": "^0.2.10",
    "zone.js": "^0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.7.0",
    "@angular/cli": "^6.1.1",
    "@angular/compiler-cli": "^6.1.0",
    "@angular/language-service": "^6.1.0",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.2",
    "@types/node": "^10.5.4",
    "codelyzer": "^4.0.1",
    "jasmine-core": "~3.1.0",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~2.0.5",
    "karma-chrome-launcher": "~2.2.0",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^2.0.1",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^1.2.0",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~2.9.2"
  }
}

我使用的命令行是： ng test rubik-frontend --code-coverage

谢谢！

Answer 1

请尝试使用

ng test rubik-frontend --code-coverage true --source-map true

据我所知，这解决了我的问题。我不确定，为什么它默认不使用 source-map。

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