title: Karma run with ng test does not find any tests to run
body: <p>So I have the default and one custom spec.ts file laying around in my Angular 10 project and none of them get detected by Karma to run. Any clue why this could be happening?</p>
  <p>My Karma Config file (actually unchanged):</p>
  <pre><code>// Karma configuration file, see link for more information
  // https://karma-runner.github.io/1.0/config/configuration-file.html
  
  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/korrespo-portal'),
        reports: ['html', 'lcovonly', 'text-summary'],
        fixWebpackSourcePaths: true
      },
      reporters: ['progress', 'kjhtml'],
      port: 9876,
      colors: true,
      logLevel: config.LOG_INFO,
      autoWatch: true,
      browsers: ['Chrome'],
      singleRun: false,
      restartOnFileChange: true
    });
  };
  
  </code></pre>
  <p>My console output:</p>
  <pre><code>Chrome 88.0.4324.104 (Windows 10): Executed 0 of 0 SUCCESS (0.013 secs / 0 secs)
  TOTAL: 0 SUCCESS
  </code></pre>
  <p>In the Karma UI this gets shown:</p>
  <pre><code>Incomplete: No specs found, , randomized with seed 27463
  </code></pre>
  <p>My <code>ng version</code> output:</p>
  <pre><code>
       _                      _                 ____ _     ___
      / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
     / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
    / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
   /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                  |___/
      
  
  Angular CLI: 10.1.7
  Node: 12.13.1
  OS: win32 x64
  
  Angular: 10.2.0
  ... animations, common, compiler, compiler-cli, core, forms
  ... language-service, localize, platform-browser
  ... platform-browser-dynamic, router
  Ivy Workspace: Yes
  
  Package                            Version
  ------------------------------------------------------------
  @angular-devkit/architect          0.1002.0
  @angular-devkit/build-angular      0.1002.0
  @angular-devkit/core               10.2.0
  @angular-devkit/schematics         10.1.7
  @angular/cdk                       10.2.5
  @angular/cli                       10.1.7
  @angular/material                  10.2.5
  @angular/material-moment-adapter   10.2.5
  @schematics/angular                10.1.7
  @schematics/update                 0.1001.7
  rxjs                               6.6.3
  typescript                         3.9.7
  </code></pre>
  <p>I'm running Angular 10 as you can see above and TypeScript 3.9.7 as also shown above...</p>