Add tests for exercises

[gyzerok]

Requesting to add tests for exercises in the book. So people can test their solutions against these tests.

[DrBoolean]

There should be a full test suite with the code. It's organized a little weird i guess

[gyzerok]

I guess here for example should be something like this:

var input = // some test input data
var output = // result of applying function
var sentences = function () {};
assert(sentences(input), output);

This would help to understand what should function do and help to know if you write it right before looking to the answers.

[DrBoolean]

https://github.com/DrBoolean/mostly-adequate-guide/blob/master/code/part1_exercises/exercises/curry/curry_exercises_spec.js

Is this not it?

[DrBoolean]

Oh oh, i see. You mean, put the test into the book text?

[gyzerok]

@DrBoolean I think it would be better if all the exercises could be done without knowledge about github. Just with the book in front of your eyes.

[gyzerok]

I can try to rewrite those with such tests inside and without implicit support functionality.

[DrBoolean]

I see now! I'm down for a small experiment