I am Microsoft .net developer. I have written an application which imports XML(which contain information about the employer, employee, dependent, benefit plans, cafeteria etc) files into my various SQL table (like employee, employer, plan, dependent tables etc)
now based on some business rules I am generating text output file.
This is the console application, it does not have any UI.
Now I want to create automation testing for this application to make sure that input and output data matches all business rules.
Note: in the output file, I have only selected nodes from the input file, not all the nodes from input files.
can someone please guide me how to do it? I haven't written any automation test earlier so please give your answer in detail.