[CI] Add integration test workflow

.github/workflows/integration-test.yaml

@@ -0,0 +1,47 @@
+name: Integration Test
+on:
+  workflow_call:
+  push:
+    branches: [main]
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}-integration-test
+  cancel-in-progress: true
+jobs:
+  integration-test:
+    name: Integration Test
+    runs-on: ubuntu-22.04
+    timeout-minutes: 10
+    strategy:
+      fail-fast: false
+      matrix:
+        toolchain: [latest]
+    steps:
+      - name: Install Swift
+        uses: vapor/[email protected]
+        with:
+          toolchain: ${{ matrix.toolchain }}
+        env:
+          SWIFTLY_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Checkout
+        uses: actions/[email protected]
+      - name: Resolve Swift dependencies
+        run: swift package resolve
+        working-directory: ./IntegrationTests
+      - name: Start Services
+        run: docker compose up -d
+        working-directory: ./IntegrationTests
+      - name: Run Integration Tests
+        run: swift test --parallel
+        working-directory: ./IntegrationTests
+      - name: Export service logs
+        if: always()
+        working-directory: ./IntegrationTests
+        run: |
+          docker compose logs --no-color > docker-compose-logs.txt
+          docker compose down
+      - name: Upload service logs
+        uses: actions/[email protected]
+        if: failure()
+        with:
+          name: docker-compose-logs.txt
+          path: IntegrationTests/docker-compose-logs.txt

.github/workflows/pull-request.yaml

@@ -13,3 +13,7 @@ jobs:
     name: Unit Test
     uses: ./.github/workflows/unit-test.yaml
     secrets: inherit
+
+  integration_test:
+    name: Integration Test
+    uses: ./.github/workflows/integration-test.yaml

README.md

@@ -1,6 +1,7 @@
 # Swift OFREP
 
 [![Unit Test](https://github.com/swift-open-feature/swift-ofrep/actions/workflows/unit-test.yaml/badge.svg)](https://github.com/swift-open-feature/swift-ofrep/actions/workflows/unit-test.yaml)
+[![Integration Test](https://github.com/swift-open-feature/swift-ofrep/actions/workflows/integration-test.yaml/badge.svg)](https://github.com/swift-open-feature/swift-ofrep/actions/workflows/integration-test.yaml)
 [![codecov](https://codecov.io/gh/swift-open-feature/swift-ofrep/graph/badge.svg?token=YK7Y25KOFU)](https://codecov.io/gh/swift-open-feature/swift-ofrep)
 
 A cross-platform [OFREP](https://github.com/open-feature/protocol) provider for Swift,