Set up github action

.github/workflows/swift.yml

@@ -0,0 +1,34 @@
+name: Integrate
+
+on:
+  push:
+    branches:
+      - main
+    paths-ignore:
+      - 'README.md'
+  pull_request:
+    branches:
+      - main
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    name: Test
+    runs-on: macOS-14
+    env:
+      DEVELOPER_DIR: /Applications/Xcode_15.4.app/Contents/Developer
+    strategy:
+      matrix:
+        destination:
+          - "platform=macOS"
+          - "platform=iOS Simulator,name=iPhone 15"
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Get Scheme Names
+        run: xcodebuild -list
+      - name: Test platform ${{ matrix.destination }}
+        run: set -o pipefail && xcodebuild -scheme DiscriminatedUnion -destination "${{ matrix.destination }}" -disableAutomaticPackageResolution test | xcbeautify