fix: remove trailing commas in Swift for Xcode <16.3 compatibility

.github/workflows/ci.yml

@@ -14,6 +14,21 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  ios-runner-swift-compat:
+    name: iOS Runner Swift Compatibility
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    steps:
+      - name: Checkout
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
+      - name: Disallow trailing commas before closing parenthesis in Swift
+        run: |
+          if rg -nU --glob '*.swift' ',\s*\n\s*\)' ios-runner; then
+            echo "Found trailing commas before ')' in Swift files. This syntax requires Swift 6.1+ and breaks older Xcode toolchains."
+            exit 1
+          fi
+
   unit:
     name: Unit Tests
     runs-on: ubuntu-latest

ios-runner/AgentDeviceRunner/AgentDeviceRunnerUITests/RunnerTests+CommandExecution.swift

@@ -310,7 +310,7 @@ extension RunnerTests {
         compact: command.compact ?? false,
         depth: command.depth,
         scope: command.scope,
-        raw: command.raw ?? false,
+        raw: command.raw ?? false
       )
       if options.raw {
         needsPostSnapshotInteractionDelay = true

ios-runner/AgentDeviceRunner/AgentDeviceRunnerUITests/RunnerTests+ScreenRecorder.swift

@@ -68,14 +68,14 @@ extension RunnerTests {
       let outputSettings: [String: Any] = [
         AVVideoCodecKey: AVVideoCodecType.h264,
         AVVideoWidthKey: Int(dimensions.width),
-        AVVideoHeightKey: Int(dimensions.height),
+        AVVideoHeightKey: Int(dimensions.height)
       ]
       let input = AVAssetWriterInput(mediaType: .video, outputSettings: outputSettings)
       input.expectsMediaDataInRealTime = true
       let attributes: [String: Any] = [
         kCVPixelBufferPixelFormatTypeKey as String: kCVPixelFormatType_32ARGB,
         kCVPixelBufferWidthKey as String: Int(dimensions.width),
-        kCVPixelBufferHeightKey as String: Int(dimensions.height),
+        kCVPixelBufferHeightKey as String: Int(dimensions.height)
       ]
       let adaptor = AVAssetWriterInputPixelBufferAdaptor(
         assetWriterInput: input,

ios-runner/AgentDeviceRunner/AgentDeviceRunnerUITests/RunnerTests+Snapshot.swift

@@ -82,11 +82,11 @@ extension RunnerTests {
           x: Double(rootSnapshot.frame.origin.x),
           y: Double(rootSnapshot.frame.origin.y),
           width: Double(rootSnapshot.frame.size.width),
-          height: Double(rootSnapshot.frame.size.height),
+          height: Double(rootSnapshot.frame.size.height)
         ),
         enabled: rootSnapshot.isEnabled,
         hittable: rootHittable,
-        depth: 0,
+        depth: 0
       )
     )
 
@@ -149,11 +149,11 @@ extension RunnerTests {
             x: Double(snapshot.frame.origin.x),
             y: Double(snapshot.frame.origin.y),
             width: Double(snapshot.frame.size.width),
-            height: Double(snapshot.frame.size.height),
+            height: Double(snapshot.frame.size.height)
           ),
           enabled: snapshot.isEnabled,
           hittable: hittable,
-          depth: min(maxDepth, visibleDepth),
+          depth: min(maxDepth, visibleDepth)
         )
       )
 
@@ -216,7 +216,7 @@ extension RunnerTests {
             rect: snapshotRect(from: snapshot.frame),
             enabled: snapshot.isEnabled,
             hittable: hittable,
-            depth: depth,
+            depth: depth
           )
         )
       }

ios-runner/AgentDeviceRunner/AgentDeviceRunnerUITests/RunnerTests+Transport.swift

@@ -19,7 +19,7 @@ extension RunnerTests {
       if buffer.count + data.count > self.maxRequestBytes {
         let response = self.jsonResponse(
           status: 413,
-          response: Response(ok: false, error: ErrorPayload(message: "request too large")),
+          response: Response(ok: false, error: ErrorPayload(message: "request too large"))
         )
         connection.send(content: response, completion: .contentProcessed { [weak self] _ in
           connection.cancel()
@@ -111,7 +111,7 @@ extension RunnerTests {
       "Content-Length: \(body.utf8.count)",
       "Connection: close",
       "",
-      body,
+      body
     ].joined(separator: "\r\n")
     return Data(headers.utf8)
   }

ios-runner/AgentDeviceRunner/AgentDeviceRunnerUITests/RunnerTests.swift

@@ -59,7 +59,7 @@ final class RunnerTests: XCTestCase {
     .tabBar,
     .textField,
     .secureTextField,
-    .textView,
+    .textView
   ]
   // Keep blocker actions narrow to avoid false positives from generic hittable containers.
   let actionableTypes: Set<XCUIElement.ElementType> = [
@@ -68,7 +68,7 @@ final class RunnerTests: XCTestCase {
     .link,
     .menuItem,
     .checkBox,
-    .switch,
+    .switch
   ]
 
   // MARK: - XCTest Entry