Provide the steps to reproduce

1. Run LH on https://output.jsbin.com/vulerujohi for just

Describe the solution you'd like

Validate test commands arguments before Run. This pattern will allow us to governance behaviors such as flags/arguments validation in all commands. Additionally, this should make the code easier to understand and maintain.

Requirements
Golang basic level.

“How to Implement” suggestion

See [issue](datreeio/datree#4

What and where?
Please give the broken URL. Where is the link located?

Would you like to be assigned to this issue?
Check the box if you will submit a PR to fix this issue. Please read CONTRIBUTING.md.
-KONG [ ] Assign me, please!

🐞 Bug report

Description

Today I received a question regarding failure of hint to check the html file. This was the error:

Run npx hint .
AnalyzerError: Cannot read property 'getLocation' of undefined
    at Analyzer.analyze (/home/runner/work/Awesome-Books/Awesome-Books/node_modules/hint/dist/src/lib/analyzer.js:151:23)
    at runNextTicks (internal/process/task_queues.js:62