Improve unit testing

[thygesteffensen]

Make it easier to assert with actions that have been called and what their input parameters (parsed) were.
Think about configuring this after/before building the service provider.

Idea:
Log each action triggers and log the inputs. This should be returned from the Trigger() function, making it easy to assert if an action has been called and assert the input.

Thus separating action executors and asserts.

[thygesteffensen]

Maybe we will need the output too? No harm in adding it.

And make this configurable, to save memory and make it efficient?