UI Testing in SwiftUI (2025 Guide): Write End-to-End Tests for Reliable iOS Apps

UI testing got you sweating bullets? 🫠 In this 2025 guide, you’ll learn how to write reliable end-to-end tests for your SwiftUI apps — using Xcode’s testing tools, XCTest, accessibility identifiers, and real-world strategies that don’t break every time your layout shifts by 2 pixels.

🧪 Introduction

Let’s be honest — SwiftUI makes building UIs feel magical. But when it comes to testing them? That’s where most developers go from 😎 to 😵‍💫 real quick.

UI testing is often the last thing added (and the first thing ignored) in many SwiftUI projects. And who can blame you? It’s notoriously flaky, hard to set up, and tends to break the moment someone nudges a button two pixels to the left. But here’s the deal — reliable UI testing is one of the strongest tools you have for shipping confident, bug-free apps, especially in 2025 where apps are built fast and updated even faster.

In this guide, we’ll break down everything you need to know about UI Testing in SwiftUI — from setup to writing end-to-end flows, dealing with modals, navigation, flaky elements, and even custom extensions to make tests easier to write and maintain.

Whether you’re just getting started or have been hacking around XCUIApplication()…