diff --git a/.github/.editorconfig b/.github/.editorconfig
new file mode 100644
index 0000000..0fad08c
--- /dev/null
+++ b/.github/.editorconfig
@@ -0,0 +1,3 @@
+[*.yaml]
+indent_style = space
+indent_size = 2
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index 6ba62cb..d1bc307 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -1,3 +1,3 @@
-* @aws-amplify/amplify-ios
+- @aws-amplify/amplify-ios
 
-/.github/CODEOWNERS @aws-amplify/amplify-ios-admins
\ No newline at end of file
+/.github/CODEOWNERS @aws-amplify/amplify-ios-admins
diff --git a/.github/workflows/unit-test.yaml b/.github/workflows/unit-test.yaml
new file mode 100644
index 0000000..b5e2221
--- /dev/null
+++ b/.github/workflows/unit-test.yaml
@@ -0,0 +1,47 @@
+name: Unit Test
+
+on:
+  pull_request:
+
+permissions: {}
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  unit-test:
+    name: "Run Unit Test"
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - scheme: AWSAppSyncApolloExtensions
+            os: iOS
+            sdk: iphonesimulator
+            destination: platform=iOS Simulator,name=iPhone 15,OS=latest
+          - scheme: AWSAppSyncApolloExtensions
+            os: macOS
+            sdk: macosx
+            destination: platform=OS X,arch=arm64
+          - scheme: AWSAppSyncApolloExtensions
+            os: watchOS
+            sdk: watchsimulator
+            destination: platform=watchOS Simulator,name=Apple Watch Series 9 (45mm),OS=latest
+          - scheme: AWSAppSyncApolloExtensions
+            os: tvOS
+            sdk: appletvsimulator
+            destination: platform=tvOS Simulator,name=Apple TV 4K (3rd generation),OS=latest
+
+    runs-on: macos-14
+    steps:
+      - uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
+        with:
+          persist-credentials: false
+      - name: ${{ matrix.os }}
+        run: |
+          xcodebuild test \
+          -scheme ${{ matrix.scheme }} \
+          -destination "${{ matrix.destination }}" \
+          -sdk ${{ matrix.sdk }} \
+          -only-testing:"${{ matrix.scheme }}Tests" | xcpretty --simple --color --report junit && exit ${PIPESTATUS[0]}
diff --git a/.gitignore b/.gitignore
index e650442..f68e2e8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .DS_Store
 /.build
+build/
 /Packages
 xcuserdata/
 DerivedData/
diff --git a/Tests/AWSAppSyncApolloExtensionsTests/Websocket/LocalWebSocketServer.swift b/Tests/AWSAppSyncApolloExtensionsTests/Websocket/LocalWebSocketServer.swift
index bdf66ca..b20ae8f 100644
--- a/Tests/AWSAppSyncApolloExtensionsTests/Websocket/LocalWebSocketServer.swift
+++ b/Tests/AWSAppSyncApolloExtensionsTests/Websocket/LocalWebSocketServer.swift
@@ -96,7 +96,7 @@ class LocalWebSocketServer {
 
     func sendTransientFailureToConnections() {
         self.connections.forEach {
-            var metadata = NWProtocolWebSocket.Metadata(opcode: .close)
+            let metadata = NWProtocolWebSocket.Metadata(opcode: .close)
             metadata.closeCode = .protocolCode(NWProtocolWebSocket.CloseCode.Defined.internalServerError)
             $0.send(
                 content: nil,