📍Use lombok, reformat, and optimize the code (#1560)

* Use lombok, reformat, and optimize the code

* Fix merge conflicts and some sonar issues

Co-authored-by: va1m <va1m@email.com>

game-loop/src/test/java/com/iluwatar/gameloop/GameLoopTest.java

@@ -23,14 +23,17 @@
 
 package com.iluwatar.gameloop;
 
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
 
 /**
  * GameLoop unit test class.
  */
-public class GameLoopTest {
+class GameLoopTest {
 
   private GameLoop gameLoop;
 
@@ -38,33 +41,33 @@ public class GameLoopTest {
    * Create mock implementation of GameLoop.
    */
   @BeforeEach
-  public void setup() {
+  void setup() {
     gameLoop = new GameLoop() {
       @Override
-      protected void processGameLoop() {}
+      protected void processGameLoop() {
+      }
     };
   }
 
   @AfterEach
-  public void tearDown() {
+  void tearDown() {
     gameLoop = null;
   }
 
-  @org.junit.jupiter.api.Test
-  public void testRun() {
+  @Test
+  void testRun() {
     gameLoop.run();
     Assertions.assertEquals(GameStatus.RUNNING, gameLoop.status);
   }
 
-  @org.junit.jupiter.api.Test
-  public void testStop() {
+  @Test
+  void testStop() {
     gameLoop.stop();
     Assertions.assertEquals(GameStatus.STOPPED, gameLoop.status);
   }
 
-  @org.junit.jupiter.api.Test
-  public void testIsGameRunning() {
-    Assertions.assertFalse(gameLoop.isGameRunning());
+  @Test
+  void testIsGameRunning() {
+    assertFalse(gameLoop.isGameRunning());
   }
-
 }