ueberprueft, ob Ass den Wert 1 oder 11 haben muss + Tests

src/main/c/Stefan/blackjack.c

@@ -110,7 +110,14 @@ bool checkForBlackjack(int userCardArray[]){
 
 int calculateCardsTotal(int cardsArray[], int len){
     int sum = 0;
+    bool aceFound = false;
     for(int i = 0; i < len; i++){
+        if(cardsArray[i] == 11){
+            aceFound = true;
+        }
+        if(aceFound && sum + cardsArray[i] > 21){
+            sum -= 10;
+        }
         sum += cardsArray[i];
     }
     return sum;

src/test/c/Stefan/test_blackjack.c

@@ -44,4 +44,60 @@ void test_2_cards_total_equals_20() {
     //assert
     TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
 
+}
+
+void test_cards_10_2_ace_total_equals_13() {
+
+    //arrange
+    int userCards[] = {10, 2, 11};
+    int expected_result = 13;
+
+    //act
+    int actual_result = calculateCardsTotal(userCards, 3);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
+
+}
+
+void test_cards_8_ace_ace_total_equals_20() {
+
+    //arrange
+    int userCards[] = {8, 11, 11};
+    int expected_result = 20;
+
+    //act
+    int actual_result = calculateCardsTotal(userCards, 3);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
+
+}
+
+void test_cards_8_ace_10_total_equals_19() {
+
+    //arrange
+    int userCards[] = {8, 11, 10};
+    int expected_result = 19;
+
+    //act
+    int actual_result = calculateCardsTotal(userCards, 3);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
+
+}
+
+void test_cards_ace_10_total_equals_21() {
+
+    //arrange
+    int userCards[] = { 11, 10};
+    int expected_result = 21;
+
+    //act
+    int actual_result = calculateCardsTotal(userCards, 2);
+
+    //assert
+    TEST_ASSERT_EQUAL_INT(expected_result, actual_result);
+
 }