separate build and unit tests

Author: YunchuWang

.github/workflows/build-validation.yml

@@ -42,19 +42,22 @@ jobs:
       uses: gradle/gradle-build-action@v2
 
     - name: Build with Gradle
-      run: ./gradlew build || echo "BUILD_FAILED=true" >> $GITHUB_ENV
-      continue-on-error: true
+      run: ./gradlew build -x test
 
+    - name: Run Unit Tests with Gradle
+      run: ./gradlew clean test || echo "UNIT_TEST_FAILED=true" >> $GITHUB_ENV
+      continue-on-error: true
+
     - name: Upload test reports if tests failed
-      if: env.BUILD_FAILED == 'true'
+      if: env.UNIT_TEST_FAILED == 'true'
       uses: actions/upload-artifact@v4
       with:
         name: Unit Test Reports
         path: '**/build/reports/tests/test'
         if-no-files-found: ignore  # Prevents errors if no reports exist
 
-    - name: Fail the job if build failed
-      if: env.BUILD_FAILED == 'true'
+    - name: Fail the job if unit tests failed
+      if: env.UNIT_TEST_FAILED == 'true'
       run: exit 1
 
       # TODO: Move the sidecar into a central image repository