Added PHPUnit tests as a GitHub action

[simialbi]

This action executes PHPUnit tests without travis dependency. It works with default GitHub actions:
https://github.com/simialbi/template/commit/ca01a608d262959eb3fcb5948b76dc9698b0cf2f/checks?check_suite_id=265348254

Q	A
Is bugfix?	❌
New feature?	✔️
Breaks BC?	〰️ (could replace travis)
Tests pass?	✔️
Fixed issues

[samdark]

Where can I see the output?

[simialbi]

Click the link above or:

[samdark]

It doesn't show up here:

That's big loss in usability :(

[simialbi]

Because I did not open a pull request in simialbi/template, I did for yiisoft/template which hasn't this action (yet). If it would have, it should show up in pull requests.

[samdark]

That's interesting.

[samdark]

18s via actions vs 54s via travis. Looks tempting.

[samdark]

@simialbi any guide on how to add action necessary?

[simialbi]

No. This action should work everywhere without any changes.

[simialbi]

I tested it on bootstrap 4 repository too which is a bit more complex (old php versions, different os's):
https://github.com/simialbi/yii2-bootstrap4/runs/229876551

[samdark]

In this case travis was faster so I wonder if it worth switching...

[simialbi]

I would consider switching. Travis is an external service, GitHub action isn't...

[simialbi]

And it could have consumed more time because I have limited concurrent actions to 3... (max-parallel: 3)

[simialbi]

Yes it's like I supposed. As soon as I remove max-parallel the GitHub action is much faster: https://github.com/simialbi/yii2-bootstrap4/runs/265376015

[samdark]

Thanks for putting it all together. I'll apply it to one of the repositories to see how it goes.

[samdark]

By now it's applied to many repos. Thanks again @simialbi for making us very interested in Github actions.