CurrentDeviceSnapshot.swift

#if canImport(UIKit)
  import SnapshotTesting
  import SwiftUI

  public func assertCurrentDeviceSnapshot<SnapshotContent: View>(
    for view: SnapshotContent,
    precision: Float = 1,
    record: Bool = false,
    file: StaticString = #file,
    testName: String = #function,
    line: UInt = #line
  ) {
    var transaction = Transaction(animation: nil)
    transaction.disablesAnimations = true
    withTransaction(transaction) {
      let safeArea: UIEdgeInsets
      switch UIDevice.current.name {
      case "iPhone 8":
        safeArea = .init(top: 20, left: 0, bottom: 0, right: 0)

      case "iPhone 13 mini":
        safeArea = .init(top: 50, left: 0, bottom: 34, right: 0)

      case "iPhone 13", "iPhone 13 Pro", "iPhone 13 Pro Max":
        safeArea = .init(top: 47, left: 0, bottom: 34, right: 0)

      case "iPad mini (6th generation)":
        safeArea = .init(top: 24, left: 0, bottom: 20, right: 0)

      case "iPad Pro (12.9-inch) (5th generation)":
        safeArea = .init(top: 24, left: 0, bottom: 20, right: 0)

      case "iPhone SE (3rd generation)":
        safeArea = .init(top: 20, left: 0, bottom: 0, right: 0)

      case "iPod touch (7th generation)":
        safeArea = .init(top: 20, left: 0, bottom: 0, right: 0)

      default:
        fatalError("Don't know safe area for device: \(UIDevice.current.name)")
      }

      assertSnapshot(
        matching: view,
        as: .image(
          precision: precision,
          layout: .device(config: .init(safeArea: safeArea, size: UIScreen.main.bounds.size))
//          traits: UITraitCollection.init(userInterfaceStyle: .light)
        ),
        named: "\(UIDevice.current.name).\(UIDevice.current.systemVersion)",
        record: record,
        file: file,
        testName: testName,
        line: line
      )
    }
  }
#endif

LICENSE

Copyright (c) 2022 Galen O'Hanlon

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Run.sh

time xcodebuild test -scheme "SnapshotTests" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPhone 8" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPhone 13 mini" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPhone 13" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPhone 13 Pro" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPhone 13 Pro Max" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPad mini (6th generation)" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPad Pro (12.9-inch) (5th generation)" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPhone SE (3rd generation)" \
  -destination "platform=iOS Simulator,OS=15.4,name=iPod touch (7th generation)" \
  -maximum-concurrent-test-simulator-destinations 3

# Note: I run 9 simulators at once instead of 3 using `-maximum-concurrent-test-simulator-destinations 9`
#  on my 64 GB machine.

SafeAreaPrinterApp.swift

// Run this app on your target device to print that devices safe area insets.

// Sample output:
//
// case "iPad Pro (12.9-inch) (5th generation)":
//   safeArea = UIEdgeInsets(top: 24.0, left: 0.0, bottom: 20.0, right: 0.0)

import SwiftUI

@main
struct TestApp: App {
  var body: some Scene {
    WindowGroup {
      SafeAreaPrinter()
    }
  }
}

struct SafeAreaPrinter: View {
  var body: some View {
    GeometryReader { geo in
      ZStack {}
        .onAppear() {
          print("case \"\(UIDevice.current.name)\":")
          print(
            "  safeArea =",
            UIEdgeInsets(
              top: geo.safeAreaInsets.top,
              left: geo.safeAreaInsets.leading,
              bottom: geo.safeAreaInsets.bottom,
              right: geo.safeAreaInsets.trailing
            )
          )
        }
    }
  }
}