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Test-drive the development of your command-line applications by David Copeland

684 views · Published 19 January 2012 · 24:25 · Indexed 2 October 2026

Channel: Confreaks · 2012 · Science & Technology

Rubyists love testing, and test-driven-development is becoming the way to write code. But, do we do this with our command-line tools? How do you write a test that your awesome application cleans up its temp files? How does one make a failing test for a missing command-line option? What's the easiest way to check our app's exit codes?

This talk will answer these questions with some real-world examples. We'll talk briefly about the challenges particular to testing command-line apps, and then dive into some code where we'll show off techniques for organizing code for testability, tools for interacting with the filesystem, and how to create full-blown acceptance tests for your command-line app. In no time, you'll be able to write your command-line apps the same way you write your other code: test-first.

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Test-drive the development of your command-line applications by David Copeland

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