Implementierung Funktion, die Wetteinsatz vom Guthaben abzieht + Test

src/main/c/Stefan/blackjack.c

@@ -22,7 +22,7 @@ int blackjack(){
         }
 
         // Bei jeder Runde wird der Wetteinsatz vom Guthaben abgezogen
-        balance -= bet;
+        balance = subtractBetFromBalanceBJ(bet, balance);
 
         // Nach jeder Runde wird das Guthaben aktualisiert
         balance = playBJ(bet, balance);
@@ -31,6 +31,10 @@ int blackjack(){
     return 0;
 }
 
+int subtractBetFromBalanceBJ(int bet, int balance){
+    return balance - bet;
+}
+
 int getBalanceBJ(){
     printf("Guthaben einwerfen: ");
     int balance = userInputBJ();

src/main/c/Stefan/blackjack.h

@@ -19,5 +19,6 @@ int calculateWinnings(bool blackjack, int bet);
 bool hit();
 bool calculateIfYouWon(int userCardsTotal, int computerCardsTotal);
 char generateCardAscii(int cardValue);
+int subtractBetFromBalanceBJ(int bet, int balance);
 
 #endif // BLACKJACK_H

src/test/c/Stefan/test_blackjack.c

@@ -282,4 +282,19 @@ void test_generate_char_for_card_5() {
     //assert
     TEST_ASSERT_EQUAL_CHAR(expected_result, actual_result);
 
-}
+}
+
+void test_subtract_bet_10_from_balance_100() {
+
+    //arrange
+    int bet = 10;
+    int balance = 100;
+    int expected_result = 90;
+
+    //act
+    int actual_result = subtractBetFromBalanceBJ(bet, balance);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
+
+}