Implemenitierung calculateWinnings + Tests

src/main/c/Stefan/blackjack.c

@@ -73,6 +73,8 @@ int getRandCard(){
 
 int playBJ(int bet, int balance){
 
+    int winnings = 0;
+
     int *computerCardArray = (int*) malloc(10 * sizeof(int));
 
     if(computerCardArray){
@@ -88,7 +90,10 @@ int playBJ(int bet, int balance){
             userCardArray[1] = getRandCard();
             printf("user rand card: %d\n", userCardArray[1]);
 
-            checkForBlackjack(userCardArray);
+            if(checkForBlackjack(userCardArray)){
+                winnings = calculateWinnings(true, bet);
+                return balance + winnings;
+            }
 
 
             free(userCardArray);
@@ -121,4 +126,11 @@ int calculateCardsTotal(int cardsArray[], int len){
         sum += cardsArray[i];
     }
     return sum;
+}
+
+int calculateWinnings(bool blackjack, int bet){
+    if(blackjack){
+        return 3 * bet;
+    }
+    return 2 * bet;
 }

src/main/c/Stefan/blackjack.h

@@ -11,5 +11,6 @@ int getRandCard();
 int playBJ(int bet, int balance);
 bool checkForBlackjack(int userCards[]);
 int calculateCardsTotal(int cardsArray[], int len);
+int calculateWinnings(bool blackjack, int bet);
 
 #endif // BLACKJACK_H

src/test/c/Stefan/test_blackjack.c

@@ -100,4 +100,32 @@ void test_cards_ace_10_total_equals_21() {
     //assert
     TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
 
+}
+
+void test_blackjack_bet_equals_10() {
+
+    //arrange
+    int bet = 10;
+    int expected_result = 30;
+
+    //act
+    int actual_result = calculateWinnings(true, bet);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
+
+}
+
+void test_no_blackjack_bet_equals_10() {
+
+    //arrange
+    int bet = 10;
+    int expected_result = 20;
+
+    //act
+    int actual_result = calculateWinnings(false, bet);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
+
 }