Hello everyone,
I鈥檝e submitted a feature request on angular/cli, and the idea is to include unit test coverage for HTML files, not just TypeScript. If you think this would be a valuable addition, please consider upvoting the post on GitHub so that it can be taken into consideration. (We need at least 20 upvotes for the request to be considered.) Thank you all for your interest and support. 
Feature Request: Coverage for template files 路 Issue #25563 路 angular/angular-cli 路 GitHub