Have you ever struggled with testing command-line arguments for your applications or scripts?
Perhaps you’ve build a robust application, with a database and REST API and interfaced via command-line (CLI).
How do you test that your code correctly handles missing arguments, wrong data types, or invalid strings or characters?
Command Line Arguments are a prime error candidate for errors, given their immense interaction with the end user. Hence, its crucial to ensure your application correctly processes user inputs and handles errors gracefully.
How do you do this without redefining all arguments in your tests? How do you abstract that layer?