在Ionic项目文件夹中运行ng test --code-coverage会生成带有所有需要的html / css / js文件的coverage文件夹。 lcov.info文件包含测试数据-但html文件中没有值。

index.html中的一个示例行：

<tr>
    <td class="file high" data-value="src"><a href="src/index.html">src</a></td>
    <td data-value="" class="pic high"><div class="chart"><div class="cover-fill" style="width: 0%;"></div><div class="cover-empty" style="width:100%;"></div></div></td>
    <td data-value="" class="pct high">%</td>
    <td data-value="" class="abs high">/</td>
    <td data-value="" class="pct high">%</td>
    <td data-value="" class="abs high">/</td>
    <td data-value="" class="pct high">%</td>
    <td data-value="" class="abs high">/</td>
    <td data-value="" class="pct high">%</td>
    <td data-value="" class="abs high">/</td>
</tr>

这是浏览器中的文件：

似乎样式从lcov数据中获取了信息，因为颜色与我通过终端获得的数据相匹配：

----------------------------------------------------|----------|----------|----------|----------|-------------------|
File                                                |  % Stmts | % Branch |  % Funcs |  % Lines | Uncovered Line #s |
----------------------------------------------------|----------|----------|----------|----------|-------------------|
All files                                           |    49.75 |    10.77 |    38.67 |    48.13 |                   |
 src                                                |      100 |      100 |      100 |      100 |                   |
  polyfills.ts                                      |      100 |      100 |      100 |      100 |                   |
  test.ts                                           |      100 |      100 |      100 |      100 |                   |
  zone-flags.ts                                     |      100 |      100 |      100 |      100 |                   |
 src/app                                            |      100 |      100 |      100 |      100 |                   |
  app.component.ts                                  |      100 |      100 |      100 |      100 |                   |
 src/app/calendar                                   |    16.56 |        0 |     8.89 |    16.44 |                   |
  calendar.page.ts                                  |    16.56 |        0 |     8.89 |    16.44 |... 24,425,426,427 |
 src/app/calendar/assignment                        |      100 |      100 |      100 |      100 |                   |
  assignment.component.ts                           |      100 |      100 |      100 |      100 |                   |
 src/app/calendar/resource                          |      100 |      100 |      100 |      100 |                   |
  resource.component.ts                             |      100 |      100 |      100 |      100 |                   |
 src/app/calendar/resource-selection                |       75 |      100 |       40 |    72.73 |                   |
  resource-selection.component.ts                   |       75 |      100 |       40 |    72.73 |          32,34,35 |
[...]

这是我的业力配置：

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','text'],fixWebpackSourcePaths: true,},reporters: ['progress','kjhtml'],port: 9876,colors: true,logLevel: config.LOG_INFO,autoWatch: true,browsers: ['Chrome'],singleRun: false,});
};

我想念什么吗？