Introduced pull request checks

.github/workflows/pull_request.yml

@@ -0,0 +1,25 @@
+name: Run test
+
+on:
+  pull_request:
+    branches: [master]  # Trigger the workflow on pull requests to the master branch
+
+jobs:
+  build:
+    runs-on: ubuntu-latest  # Use the latest Ubuntu runner
+
+    steps:
+      - uses: actions/checkout@v4  # Check out the code from the repository
+
+      - name: Set up JDK 1.8
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'  # Use Temurin distribution for JDK
+          java-version: 1.8        # Specify Java version 1.8
+          cache: gradle            # Cache Gradle dependencies
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew  # Make the gradlew script executable
+
+      - name: Run unit tests
+        run: ./gradlew test  # Run unit tests using Gradle