src/test/java/com/example/AppTest.java

@@ -5,4 +5,8 @@ import static org.junit.jupiter.api.Assertions.*;
 
 public class AppTest {
     @Test public void testGreet() { App app = new App(); assertEquals("Hello, World!", app.greet()); }
+    @Test
+    public void test1() {
+        int a = 5;
+    }
 }