April 2024
Beginner to intermediate
224 pages
5h 7m
English
Content preview from From Ruby to ElixirBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Wrapping Up
Tests are critical for production applications. They give you confidence that your application works as expected and will handle errors correctly. The way that you test doesn’t matter as much as having the tests, so start early!
Elixir provides a built-in testing framework called ExUnit. It’s a great testing library that has an intentionally limited number of features and assertions. Despite being a small library, ExUnit is powerful and expressive—largely due to its support for pattern matching. ExUnit verifies that asserted patterns match correctly. And if a pattern doesn’t match, ExUnit highlights what specifically was different between the left and right sides.
ExUnit tests are specified by using the ExUnit.Case module. This brings ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.