* modifying the for loop to preserver user inputted variable files preference
* adding test cases
* pr comments + refactoring the for loop for better readability.
* pr comments + refactoring the for loop for better readability.
* pr comments | handling default case
* adding additional test case
* fixing test cases
* fixing test cases. creating a subdirectory to add a test case for both hcl and json auto var files
* adding test case for json auto var file