[testing] Rewrite tests fot binding-context

[ldmonster]

Is your feature request related to a problem? Please describe.

In last iteration, we used to comment:
tests for binding context

This issue to not forget rewrite this tests for not JQ testing. To import C bindings for just testing with JQ - it's overhead.

It this task, please check this file too and delete it if we not need it.

Describe the solution you'd like to see

We can rewrite tests with golang std json library.

Describe alternatives you've considered

Additional context