[bug] randomOrder configuration parameter should fail if an invalid value is provided

[ngarbezza]

Describe the bug
It seems that it is possible to configure Testy with an invalid value for the randomOrder configuration parameter, and it does not cause a failure.

Version(s) affected

To Reproduce

Run any suite with the following configuration in .testyrc.json:

{
  "directory": "./tests",
  "filter": ".*_test.js$",
  "language": "en",
  "failFast": false,
  "randomOrder": "I AM AN INVALID VALUE"
}

Expected behavior
An error message before running any suite explaining that the provided value is not valid, and the allowed values are true and false (booleans).

[zurda]

Hi there, I'd love to do this one, if available.

[ngarbezza]

it's all yours @zurda !

[ngarbezza]

hi @zurda, just checking in: how it's your progress? did you run into any issues with the repo? let me know how can I help! thanks again for interesting in this repo 😄

[ignacio-r]

Hi, assign this one to me if you want.