Add BallThread resume and suspend state test

Author: alhusseain

twin/src/test/java/com/iluwatar/twin/BallThreadTest.java

@@ -27,6 +27,7 @@
 import static java.lang.Thread.UncaughtExceptionHandler;
 import static java.lang.Thread.sleep;
 import static java.time.Duration.ofMillis;
+import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertTimeout;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
@@ -35,12 +36,14 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
 
+import lombok.extern.slf4j.Slf4j;
 import org.junit.jupiter.api.Test;
 
 /**
  * BallThreadTest
  *
  */
+@Slf4j
 class BallThreadTest {
 
   /**
@@ -59,12 +62,12 @@ void testSuspend() {
       verify(ballItem, atLeastOnce()).draw();
       verify(ballItem, atLeastOnce()).move();
       ballThread.suspendMe();
-
       sleep(1000);
+      LOGGER.info("Current ballThread State: "+ballThread.getState());
+      assertEquals(ballThread.getState(), Thread.State.WAITING);
 
       ballThread.stopMe();
       ballThread.join();
-
       verifyNoMoreInteractions(ballItem);
     });
   }
@@ -86,8 +89,9 @@ void testResume() {
       sleep(1000);
 
       verifyNoMoreInteractions(ballItem);
-
       ballThread.resumeMe();
+      LOGGER.info("Current ballThread State: "+ballThread.getState());
+      assertEquals(ballThread.getState(), Thread.State.RUNNABLE);
       sleep(300);
       verify(ballItem, atLeastOnce()).draw();
       verify(ballItem, atLeastOnce()).move();