Added inRootMenu function to MenuManager.

src/main/java/Application/MenuManager.java

@@ -18,5 +18,8 @@ public class MenuManager {
         return this.currentMenu;
     }
 
+    public boolean inRootMenu(){
+        return this.currentMenu.equals(this.rootMenu);
+    }
 
 }

src/test/java/Application/MenuManagerTest.java

@@ -35,4 +35,11 @@ class MenuManagerTest {
         mm.select(0);
         assertEquals(mm.getCurrentMenu(), rootMenu.getMenu(0).getMenu(0));
     }
+
+    @Test
+    void testIsRootMenuFunction(){
+        assertTrue(mm.inRootMenu());
+        mm.select(0);
+        assertFalse(mm.inRootMenu());
+    }
 }