ADD: Add method to find card in hand

src/main/java/no/ntnu/cardgame/Backend/Hand.java

@@ -36,8 +36,22 @@ public class Hand {
         return this.hand.stream().reduce(0,(subtotal, card) -> subtotal+ card.getFace(), Integer::sum);
     }
 
+
+    /**
+     * Method that check if the hand has hearts.
+     *
+     * @return returns an arraylist with cards that has hearts.
+     */
     public ArrayList<PlayingCard> getHearts(){
         return (ArrayList<PlayingCard>) this.hand.stream().filter(card -> card.getSuit() == 'H').collect(Collectors.toList());
     }
 
+    public PlayingCard findCard(char suit, int face){
+        PlayingCard result = null;
+        try{
+            result = (PlayingCard) this.hand.stream().filter(card -> card.getSuit() == suit && card.getFace()==face);
+        }catch (Exception ignore){}
+        return result;
+    }
+
 }

src/test/java/Backend/DeckOfCardsTest.java → src/test/java/no/ntnu/cardgame/Backend/DeckOfCardsTest.java

-package Backend;
+package no.ntnu.cardgame.Backend;
 
 import no.ntnu.cardgame.Backend.DeckOfCards;
 import no.ntnu.cardgame.Backend.PlayingCard;

src/test/java/Backend/HandTest.java → src/test/java/no/ntnu/cardgame/Backend/HandTest.java

-package Backend;
+package no.ntnu.cardgame.Backend;
 
 import no.ntnu.cardgame.Backend.DeckOfCards;
 import no.ntnu.cardgame.Backend.Hand;
@@ -71,4 +71,17 @@ class HandTest {
         assertEquals(0,hand3.getHearts().size());
     }
 
+    @Test
+    @DisplayName("Test the method to find a card")
+    void testFindCard(){
+        Hand hand = new Hand(deck.dealHand(3));
+        PlayingCard cardNotInHand = deck.getCards().get(0);
+
+        assertNull(hand.findCard(cardNotInHand.getSuit(), cardNotInHand.getFace()));
+        System.out.println(hand.findCard(cardNotInHand.getSuit(), cardNotInHand.getFace()));
+
+        PlayingCard cardInDeck = hand.getHand().get(0);
+        assertEquals(cardInDeck,hand.findCard(cardInDeck.getSuit(),cardInDeck.getFace()));
+    }
+
 }
\ No newline at end of file

src/test/java/Backend/PlayingCardTest.java → src/test/java/no/ntnu/cardgame/Backend/PlayingCardTest.java

-package Backend;
+package no.ntnu.cardgame.Backend;
 
 
 import no.ntnu.cardgame.Backend.PlayingCard;