Create workflow to run unit tests

Author: anaiberta

.github/workflows/unit-test.yml

@@ -0,0 +1,29 @@
+name: Unit Test
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    - name: Set up JDK 11
+      uses: actions/setup-java@v2
+      with:
+        java-version: '11'
+
+    - name: Cache Gradle packages
+      uses: actions/cache@v4
+      with:
+        path: ~/.gradle/caches
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
+        restore-keys: ${{ runner.os }}-gradle
+
+    - name: Set up Gradle
+      uses: gradle/gradle-build-action@v2
+
+    - name: Run unit tests
+      run: ./gradlew test