July 2019
Intermediate to advanced
310 pages
7h 26m
English
Content preview from Programming ElmBecome 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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Test an Application
Earlier in this chapter, you learned about unit and integration testing. Fully testing Elm projects requires both types of testing. Unit tests ensure that functions behave correctly in isolation. Integration tests ensure that those functions work together as expected.
So far, you’ve focused on unit testing the AwesomeDate module. In this section, you will test an Elm application that uses it. You will use a combination of unit and integration tests to test the update and view functions. Let’s get started.
First, you need the application. Outside of your awesome-date directory, create a new directory called awesome-date-app. Copy the contents of the code/test-applications/awesome-date-app directory from this book’s code ...
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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.