testing: e2e - add coverage reports for e2e tests

[dsebastien]

Links:

• https://www.npmjs.com/package/protractor-istanbul-plugin
• https://www.npmjs.com/package/remap-istanbul More links to check:
• https://www.npmjs.com/package/protractor-istanbul-plugin
• https://lkrnac.net/blog/2014/04/measuring-code-coverage-by-protractor/
• http://stackoverflow.com/questions/28536755/protractor-coverage-not-generating-report
• http://stackoverflow.com/questions/27187974/protractor-tests-run-successfully-but-the-protractor-coverage-report-is-complete
• http://stackoverflow.com/questions/22350680/code-coverage-for-protractor-tests-in-angularjs
• http://www.jujens.eu/posts/en/2015/Sep/25/code-coverage-istanbul-protractor/
• http://programmerbuddy.blogspot.be/2014/03/full-automation-of-protractor-e2e-tests_22.html
• https://www.jetbrains.com/help/idea/2016.1/monitoring-code-coverage-for-javascript.html

[Mallikki]

Hi guys,

I've been checking all those links and it seems that Grunt has not been updated since the beginning of 2017, and Istanbul is not maintained anymore (since 2016).

Is that an issue here?

Also, i've seen that link during my research: https://www.npmjs.com/package/protractor-e2e-coverage
This is a package that will measure e2e coverage and put the output in a file. It seems relevant but the latest version has been published also 3 years ago.

Should I go for Grunt, as it is the most recent package? Or for Istanbul, which seems more complete?

Edit: I'll put that issue on wait, as there are several problems with it:

• Grunt has not been updated since 2017, and the last issue available here is this one; https://github.com/r3b/grunt-protractor-coverage/issues/72 (it does not look good),
• Istanbul has been abandonned : https://github.com/bennyhat/protractor-istanbul-plugin. The reason is that protractor is evolving too fast and the devs don't have the time to maintain the packages,
• protractor-e2e-coverage has not been update since 2015, and issues with alarming titles are still open: https://github.com/markuswaltre/protractor-e2e-coverage/issues. Most people commenting on the first issue for example have the same problem and no real answer is given, only workaround until something better comes up.

There is an actual issue on Angular-CLI about e2e testcoverage: https://github.com/angular/angular-cli/issues/6286 but this seems a bit blocked - or at least on wait - as well (last answer - and not a one requiring this feature to be implemented - was a few months ago).

What should we do here?

[pvdyck]

FYI : https://github.com/edvlucas/angular-e2e-coverage

[dsebastien]

Great @pvdyck, thanks!

[dsebastien]

We can also investigate this project, as recommended by Minko: https://github.com/manfredsteyer/ngx-build-plus