Andrés Pizá Bückmann tovkal

The Ultimate Swift Testing Playbook (2024 WWDC Edition, expanded with Apple docs from June 2025)

Updated with info from https://developer.apple.com/documentation/testing fetched via Firecrawl on June 7, 2025.

See also my blog: See also my blog post: https://steipete.me/posts/2025/migrating-700-tests-to-swift-testing

A hands-on, comprehensive guide for migrating from XCTest to Swift Testing and mastering the new framework. This playbook integrates the latest patterns and best practices from WWDC 2024 and official Apple documentation to make your tests more powerful, expressive, and maintainable.

1. Migration & Tooling Baseline

Problem

We have index.html file in S3 bucket under a folder called /about-us/. When checking in browser using CloudFront distribution link, custom-domain.com/about-us/ shows AccessDenied error.

But, custom-domain.com/about-us/index.html works fine and show content.

What we want

We want custom-domain.com/about-us/ to show the index.html content.

Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.

Instructions

copy the file commit-msg to .git/hooks/commit-msg
make sure your delete the sample file .git/hooks/commit-msg.sample
Make commit msg executable. chmod +x .git/hooks/commit-msg
Edit commit-msg to better fit your development branch, commit regex and error message
Profit $$

	# Add to your zsh profile

	function devicepid() {
	if [ -z "$1" ]; then
	echo "Usage: devicepid <device-name> <search>"
	echo "Example: devicepid 'iPhone 15 Pro Max' SpringBoard"
	return 1
	fi

	if [ -z "$2" ]; then

	//
	// VisionViewPlaygroundApp.swift
	// VisionViewPlayground
	//
	// Created by Steven Troughton-Smith on 21/09/2023.
	//

	import SwiftUI

	@main

	//
	// DebugDevice.swift
	//
	// Copyright 2022 • Sidetrack Tech Limited
	//

	import Foundation

	// This must be called on the main-thread.
	var isDebugProfileInstalled: Bool {

	# A Best in Class Checklist
	A boiled down checklist adapted from this [post](https://www.swiftjectivec.com/a-best-in-class-app/), created by @jordanmorgan10.

	> To use this, create a Github Issue in your own repo, and simply copy and paste this text.

	## iOS Core Technology
	_Things any iOS app can benefit from_

	- [ ] iCloud Sync
	- [ ] Focus Filter Support

	import SwiftUI

	extension Binding where Value: MutableCollection, Value: RangeReplaceableCollection, Value.Element: Identifiable {
	func filter(_ isIncluded: @escaping (Value.Element)->Bool) -> Binding<[Value.Element]> {
	return Binding<[Value.Element]>(
	get: {
	// The binding returns a filtered subset of the original wrapped collection.
	self.wrappedValue.filter(isIncluded)
	},
	set: { newValue in

	extension UITapGestureRecognizer {

	func didTapAttributedTextInLabel(label: UILabel, inRange targetRange: NSRange) -> Bool {
	// Create instances of NSLayoutManager, NSTextContainer and NSTextStorage
	let layoutManager = NSLayoutManager()
	let textContainer = NSTextContainer(size: CGSize.zero)
	let textStorage = NSTextStorage(attributedString: label.attributedText!)

	// Configure layoutManager and textStorage
	layoutManager.addTextContainer(textContainer)