add test to ci

.gitea/workflows/ci.yml

@@ -35,6 +35,38 @@ jobs:
       - name: "Stop Gradle"
         working-directory: ./backend
         run: gradle --stop
+  
+  test:
+    name: "Test"
+    runs-on: "vps-4"
+    container:
+      image: "cimg/openjdk:22.0-node"
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v3
+      - name: Setup Java 22
+        uses: actions/setup-java@v3
+        with:
+          distribution: "temurin"
+          java-version: "22"
+      - name: "Cache Gradle dependencies"
+        uses: actions/cache@v3
+        with:
+          path: |
+            ~/.gradle/caches
+            ~/.gradle/wrapper
+          key: gradle-${{ runner.os }}-common
+          restore-keys: |
+            gradle-${{ runner.os }}-
+      - name: "Prepare Gradle"
+        working-directory: ./backend
+        run: gradle clean
+      - name: "Test"
+        working-directory: ./backend
+        run: gradle test
+      - name: "Stop Gradle"
+        working-directory: ./backend
+        run: gradle --stop
 
   eslint:
     name: eslint