![]() ![]() ![]() Moreover, the Apple ecosystem allows you to use SwiftUI and UIKit alongside each other. In short, I’ve found it to be a very useful tool in my experience! Developers can spend more time writing code efficiently, making platform-specific features, and focusing on the UI because of the time saved using SwiftUI. SwiftUI is accessible on all Apple platforms, including macOS, iOS, iPadOS, watchOS, and tvOS. With a much simpler and faster UI pattern, you can employ features like dynamic types, dark mode, localization, and accessibility right away when you use SwiftUI. App building through declarative code of the same complexity - with a lot less code - enables developers to rapidly develop apps in iOS. SwiftUI is an innovative shift in Apple’s ecosystem. Let’s waste no time and get started! Introduction to SwiftUI Setting up an Xcode project with SwiftUI.In this article, we will be building a form in SwiftUI together, so feel free to follow along with this tutorial at your own pace. This tutorial requires Xcode 11 (or a later version) and we will be using Swift 5 throughout. SwiftUI currently supports only iOS 13 and newer. ![]() If of the most significant advances in dev tools in recent years has been the arrival of SwiftUI, a UI framework that allows developers to design and build user interfaces using declarative code. Our sandbox app doesn’t have any initial state to worry about, but if you needed to configure your app in a certain way then you would add something like this to your main app: #if DEBUG That will pass “enable-testing” to the app when it’s launched, which we can then make it detect and respond to. To pass in a testing flag, replace the call to XCUIApplication().launch() with this: let app = XCUIApplication() While you can put code after that comment to force your app to be in a specific state, most good tests I’ve seen use a much more robust approach: pass in a command-line parameter that the app can read and adapt to. That second comment is important: you need to make sure the app is configured in a very specific way, otherwise you’re likely to have tests fail sporadically. The setUp method is a good place to do this. In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. Doing this in setup will make sure it happens for each test method. You’ll also see an empty test method to get us started, called testExample().įor now I want to focus on the setUp() method, which should contain code like this: // UI tests must launch the application that they test. Like regular tests you’ll see setUp() and tearDown() methods that run before and after your tests to make sure they are in a consistent state. Sponsor Hacking with Swift and reach the world's largest Swift community! Setting an initial state By using AppSweep’s actionable recommendations, developers can improve the security posture of their apps in accordance with security standards like OWASP. SPONSORED AppSweep by Guardsquare helps developers automate the mobile app security testing process with fast, free scans. Xcode’s default options might be OK, but check the team option to make it’s configured for your team.įinally, look inside the XCUITestSandboxUITests group and open XCUITestSandboxUITests.swift for editing. You’ll see a long list of possible targets, but I’d like you to scroll down and select iOS UI Testing Bundle then click Next. Go to the File menu and choose New > Target. Right now the app doesn’t have anywhere to add UI tests, so the first step is to add a new target. Where possible regular unit tests are preferable. UI testing is notoriously flaky, and ideally you should make most of your app independent of the user interface – if you can avoid using import UIKit that’s a good sign! Note: This sandbox app is specifically about user interface testing. XCUITest does not work great with hardware keyboards, so you should use the on-screen one to be sure. If you didn’t see the on-screen keyboard when the text field was selected, you should go to the Hardware menu and uncheck Keyboard > Connect Hardware Keyboard. This example gives us a variety of controls to work with, which should allow for some interesting UI tests. Clicking any of the three colored buttons will present an alert.Toggling the segmented control with change the title in the navigation bar.Dragging the slider will update the progress view they should move in opposite directions.If you enter text into the text box you’ll see the same text appear in the label below.Give the example app a try now – it’s a simple sandbox app with a small amount of functionality: The project we’ll be using is a simple sandbox with a variety of controls – you can download it here. User interface testing can be tricky to get right, so in this tutorial we’re going to take an app that has no UI tests and upgrade it so you can see exactly how the process work. ![]()
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