Writing unit tests is one of the key responsibilities of a developer. Although writing a test is not that hard, setting up a controlled environment where you can unit test one component might be challenging, especially if your component is surrounded by legacy code. Setting up testing doubles is a winner technique to tackle this problem.
Published at: 01 October 2020
We want our software to be error-proof, but in reality, error scenarios will always exist.
So this article's objective is to explain why you should handle errors on your app, give you a rule of thumb on when treating errors, and give some practical improvements you could apply on your app.
Published at: 04 August 2020
When you are starting out on testing your code, you might find asynchronous methods a little bit tricky to test.
But do not worry, XCTestExpectation got you covered if you want to assert that an async block will execute, or even assert that it will not execute.
Published at: 07 July 2020
I'm on a quest to study data structures in Swift, and one really cool feature that Swift arrays implement is copy-on-write!
Published at: 24 May 2020
Recently, I discovered Publish, a static website generator that uses Swift, written by John Sundell.
The main idea is to declare all the pieces of your website like a Swift Package, and then using Plot to generate HTML code using the type-safety of Swift, and finally using Ink to render posts written in Markdown. (like this one!)
It may sound like a lot of tools to handle, but in reality, Publish already does most of the work for you.
Published at: 20 April 2020
Lucas Oliveira is a Software Engineer at iFood who enjoys sharing knowledge, iOS development, trying new frameworks and libraries, and recently is really excited about using Swift outside Apple platforms as well