Reduce number of sim tests (#241)

Author: dduan

.github/workflows/swift.yml

@@ -44,68 +44,52 @@ jobs:
         run: swift test
 
   swift-test-simulator:
-    name: ${{ matrix.platform }} ${{ matrix.os_version }}
+    name: ${{ matrix.platform }} ${{ matrix.os_version }} (Swift 6.2)
     runs-on: macos-26
     strategy:
       matrix:
         include:
-          - platform: iOS
-            os_version: "18.5"
-            destination: "platform=iOS Simulator,name=iPhone 16 Pro,OS=18.5"
-            sdk: iphonesimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.iPhone-16-Pro
-          - platform: tvOS
-            os_version: "18.5"
-            destination: "platform=tvOS Simulator,name=Apple TV,OS=18.5"
-            sdk: appletvsimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.Apple-TV-1080p
-          - platform: watchOS
-            os_version: "11.5"
-            destination: "platform=watchOS Simulator,name=Apple Watch Series 10 (46mm),OS=11.5"
-            sdk: watchsimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-10-46mm
-          - platform: visionOS
-            os_version: "2.5"
-            destination: "platform=visionOS Simulator,name=Apple Vision Pro,OS=2.5"
-            sdk: xrsimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.Apple-Vision-Pro
           - platform: iOS
             os_version: "26.1"
             destination: "platform=iOS Simulator,name=iPhone 17 Pro,OS=26.1"
             sdk: iphonesimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.iPhone-17-Pro
           - platform: tvOS
             os_version: "26.1"
             destination: "platform=tvOS Simulator,name=Apple TV,OS=26.1"
             sdk: appletvsimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.Apple-TV-1080p
           - platform: watchOS
             os_version: "26.1"
             destination: "platform=watchOS Simulator,name=Apple Watch Series 11 (46mm),OS=26.1"
             sdk: watchsimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.Apple-Watch-Series-11-46mm
           - platform: visionOS
             os_version: "26.1"
             destination: "platform=visionOS Simulator,name=Apple Vision Pro,OS=26.1"
             sdk: xrsimulator
-            device_type_id: com.apple.CoreSimulator.SimDeviceType.Apple-Vision-Pro
     steps:
       - name: Select Xcode
         run: sudo xcode-select -s /Applications/Xcode_26.1.1.app
       - name: Checkout source
         uses: actions/checkout@v4
-      - name: Cache exported simulator runtime
-        id: cache-runtime
-        uses: actions/cache@v4
-        with:
-          path: ${{ runner.temp }}/simruntimes/${{ matrix.platform }}/${{ matrix.os_version }}
-          key: simruntime-${{ runner.os }}-xcode26_1_1-${{ matrix.platform }}-${{ matrix.os_version }}
-      - name: Ensure simulator runtime and device exist
-        if: ${{ matrix.platform != 'macOS' }}
-        env:
-          SIMRUNTIME_EXPORT_BASE: ${{ runner.temp }}/simruntimes
+      - name: Run tests (simulator)
         run: |
-          Scripts/ensure-simulator.sh "${{ matrix.platform }}" "${{ matrix.os_version }}" "${{ matrix.destination }}" "${{ matrix.device_type_id }}"
+          xcodebuild -scheme TOMLDecoder-Package -destination "${{ matrix.destination }}" -sdk "${{ matrix.sdk }}" test
+
+  swift-test-simulator-backdeploy:
+    name: iOS 17.0.1 (Swift 6.0)
+    runs-on: macos-14
+    strategy:
+      matrix:
+        include:
+          - platform: iOS
+            os_version: "17.0.1"
+            destination: "platform=iOS Simulator,name=iPhone 15 Pro,OS=17.0.1"
+            sdk: iphonesimulator
+            device_type_id: com.apple.CoreSimulator.SimDeviceType.iPhone-15-Pro
+    steps:
+      - name: Select Xcode
+        run: sudo xcode-select -s /Applications/Xcode_16.1.app
+      - name: Checkout source
+        uses: actions/checkout@v4
       - name: Run simulator test
         run: |
           xcodebuild -scheme TOMLDecoder-Package -destination "${{ matrix.destination }}" -sdk "${{ matrix.sdk }}" test