5 April 2024 Leave a comment Tech-Help
When it comes to UI testing, especially for accessibility, being able to identify UI elements reliably is crucial. In SwiftUI, setting accessibility identifiers can sometimes be confusing, but it’s an essential step to ensure that UI tests can find and interact with the correct elements. This guide will help you properly set an accessibility identifier for a button in SwiftUI, ensuring that automated tests can locate and interact with that button.
Setting an Accessibility Identifier in SwiftUI
To set an accessibility identifier in SwiftUI, you need to attach the identifier directly to the button view. Here’s a step-by-step example of how to set an accessibility identifier for a button that toggles a modal view:
SwiftUI Code:
<Button(action: {
withAnimation(.easeOut(duration: 1)) {
self.modalShown.toggle()
}
}) {
FilterButton()
}
.buttonStyle(PlainButtonStyle())
.accessibility(identifier: "modalFilterViewBtn")>
In this snippet, the .accessibility(identifier: "modalFilterViewBtn") modifier is chained to the button. This ensures that the button has the specified accessibility identifier, which can then be used in UI tests.
UI Testing Code:
IOSElement elem1 = driver.findElementByAccessibilityId("modalFilterViewBtn");
wait.until(ExpectedConditions.elementToBeClickable(elem1));
elem1.click();
In your UI test, you can then locate the button using the findElementByAccessibilityId method with the identifier you set earlier. Once the element is found and deemed clickable, you can perform actions on it, such as clicking.
Important Note for iOS 14+
It’s important to note that in iOS 14 and later, the .accessibility(identifier: String) modifier is deprecated. Instead, you should use the .accessibilityIdentifier(_ identifier: String) modifier. Here’s how you would update the code for iOS 14 and beyond:
<Button(action: {
// action here
}) {
// button label view here
}
.buttonStyle(PlainButtonStyle())
.accessibilityIdentifier("modalFilterViewBtn")>
By using the .accessibilityIdentifier(_ identifier: String) modifier, you ensure that your code is up to date with the latest SwiftUI practices and that your accessibility identifiers will continue to work in future iOS versions.
Conclusion
Properly setting accessibility identifiers is a vital part of UI testing and accessibility in general. With this guide, you should be able to effectively assign and utilize accessibility identifiers within your SwiftUI application, ensuring that your UI tests are robust and reliable.
