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Visual QA for iOS apps using swift-snapshot-testing. Validates UIKit/SwiftUI views render correctly across devices and traits.
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Baseado na classificação ocupacional SOC
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| name | qa-visual-ios |
| description | Visual QA for iOS apps using swift-snapshot-testing. Validates UIKit/SwiftUI views render correctly across devices and traits. |
Visual regression testing for iOS applications using swift-snapshot-testing.
{
"project_dir": "/path/to/ios_project",
"ticket_id": "TICKET-XXX",
"test_target": "MyAppTests",
"devices": ["iPhone14", "iPadPro"],
"traits": ["light", "dark", "accessibility"],
"record_mode": false
}
// Package.swift or SPM
dependencies: [
.package(url: "https://github.com/pointfreeco/swift-snapshot-testing", from: "1.12.0")
]
cd $project_dir
xcodebuild test \
-scheme MyApp \
-destination 'platform=iOS Simulator,name=iPhone 14' \
-only-testing:MyAppTests/SnapshotTests
// MyViewSnapshotTests.swift
import XCTest
import SnapshotTesting
@testable import MyApp
class MyViewSnapshotTests: XCTestCase {
func testMyView_iPhone14() {
let view = MyView()
assertSnapshot(matching: view, as: .image(on: .iPhone14))
}
func testMyView_darkMode() {
let view = MyView()
assertSnapshot(matching: view, as: .image(on: .iPhone14, traits: .init(userInterfaceStyle: .dark)))
}
func testMyView_accessibility() {
let view = MyView()
assertSnapshot(matching: view, as: .image(on: .iPhone14, traits: .init(preferredContentSizeCategory: .accessibilityLarge)))
}
}
func testSwiftUIView() {
let view = ContentView()
let hostingController = UIHostingController(rootView: view)
hostingController.view.frame = UIScreen.main.bounds
assertSnapshot(matching: hostingController, as: .image(on: .iPhone14))
}
func testMyView_allDevices() {
let view = MyView()
assertSnapshot(matching: view, as: .image(on: .iPhoneSe))
assertSnapshot(matching: view, as: .image(on: .iPhone14))
assertSnapshot(matching: view, as: .image(on: .iPhone14ProMax))
assertSnapshot(matching: view, as: .image(on: .iPadPro12_9))
}
{
"skill": "qa-visual-ios",
"status": "pass|fail",
"tests": {
"total": 12,
"passed": 10,
"failed": 2
},
"failures": [
{
"test": "testMyView_darkMode",
"expected": "__Snapshots__/MyViewTests/testMyView_darkMode.png",
"actual": "__Snapshots__/MyViewTests/testMyView_darkMode.actual.png",
"diff_percent": 3.1,
"category": "color_diff"
}
],
"devices_tested": ["iPhoneSe", "iPhone14", "iPadPro12_9"],
"traits_tested": ["light", "dark", "accessibilityLarge"],
"next_action": "proceed|fix|record"
}
| Category | Description | Common Cause |
|---|---|---|
layout_diff | View frame/bounds changed | Auto Layout changes |
color_diff | Colors don't match | Theme/asset changes |
text_diff | Text rendering different | Font/localization |
missing_subview | Subview not rendered | Visibility logic bug |
safe_area | Safe area insets wrong | Device-specific issue |
Any test failed?
YES → Check diff_percent
> 5% → status: "fail", next_action: "fix"
1-5% → status: "warning", manual review
< 1% → likely rendering variance, pass
Record mode requested?
YES → Update reference snapshots
Basic snapshot test:
{
"project_dir": "/projects/MyiOSApp",
"ticket_id": "TICKET-IOS-001"
}
Record new baselines:
{
"project_dir": "/projects/MyiOSApp",
"ticket_id": "TICKET-IOS-001",
"record_mode": true
}