Angular v11 ignores karma plugin config karma-* and throws error

[iftee-hussain]

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• update
• lint
• extract-i18n
• run
• config
• help
• version
• doc

Is this a regression?

karma-coverage was made required in angular 11 and strict checking of karma-coverage was also introduced in v11. So, no it is not a regression

Description

According to https://karma-runner.github.io/6.1/config/configuration-file.html

List of plugins to load. A plugin can be a string (in which case it will be required by Karma) or an inlined plugin - Object. By default, Karma loads all sibling NPM modules which have a name starting with karma-*.

I have added karma-coverage in package.json and installed it
and added karma-* to the plugins config in karma.conf.js
Angular cli ignores the installed package as it seems karma-* config is ignored while validating karma-coverage is installed
It works when in plugins configuration one of these is added
'karma-coverage' or require('karma-coverage')

🔬 Minimal Reproduction

1. Add karma-coverage in package.json and install it (npm install)

"karma-coverage": "^2.0.3",

2. Add 'karma-*' in karma.conf.js . Example:

plugins: [
      'karma-*',
      require('@angular-devkit/build-angular/plugins/karma'),
    ]

3. Run tests ng test

🔥 Exception or Error

 ERROR [karma-server]: Server start failed on port 9876: Error: karma-coverage must be installed in order to run code coverage.

🌍 Your Environment

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/
    

Angular CLI: 11.1.1
Node: 12.16.1
OS: linux x64

Angular: 11.1.1
... animations, cli, common, compiler, compiler-cli, core, forms
... platform-browser, platform-browser-dynamic, router, upgrade
Ivy Workspace: Yes

Package                         Version
---------------------------------------------------------
@angular-devkit/architect       0.1001.7
@angular-devkit/build-angular   0.1100.7
@angular-devkit/core            10.1.7
@angular-devkit/schematics      11.0.7
@angular/cdk                    9.2.4
@schematics/angular             11.0.7
@schematics/update              0.1101.1
ng-packagr                      10.1.2
rxjs                            6.6.3
typescript                      4.1.3

Anything else relevant?

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