Test output as comment

[Mte90]

Based on #332 this is my proposal with some tests as example and works with multiline output.

In this way:

• If there is a comment in the code that starts with // Output it will get that content for the test check
• Otherwise
  • If there is a *.output.txt file will read from that
    • Otherwise will use Succeded as string for the check

I think that in this case we can simplify a lot and cover all the needs for the future.

If I get an approval I will move on to migrate (again) all the tests (also for validity) with the contribute guide.

[Ph0enixKM]

Some small changes. I'll think more about the actual implementation. I thought that we count only the comments at the top to be the output and not the comments that start with "Output". Give me some time to let that sink in

[Mte90]

About Output on top, it is just to give a bit of context in case someone else open those files and doesn't understand this comments.
Also in case it is needed to add some documentation as some tests has already.

[b1ek]

this gotta be explained in CONTRIBUTING.md tho

[Mte90]

this gotta be explained in CONTRIBUTING.md tho

Yes I will do that when we define how the comment is structured.

[Ph0enixKM]

Looking good

[b1ek]

just like i said, it gotta be explained in CONTRIBUTING.md