update UnitTest Ship

src/test_/java/ShipTest.java

@@ -1,3 +1,15 @@
+import BattleShip.Ship;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+
 class ShipTest {
+    @Test
+    void counter() {
 
+        Ship ship = new Ship(3, "TestShip");
+        assertFalse(ship.isKilled());
+        assertEquals(0, ship.numOfHits);
+    }
 }