Solved task 1-implement/3-get-card-value.js

Author: Konvaly

Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js

@@ -8,8 +8,47 @@
 // write one test at a time, and make it pass, build your solution up methodically
 // just make one change at a time -- don't rush -- programmers are deep and careful thinkers
 function getCardValue(card) {
-  if (rank === "A") {
+  const rank = card.slice(0, -1);
+  const cardFace = card.slice(-1);
+  const numRank = Number(rank);
+
+  if (
+    rank === "A" &&
+    (cardFace === "♠" ||
+      cardFace === "♣" ||
+      cardFace === "♦" ||
+      cardFace === "♥")
+  ) {
     return 11;
+  } else {
+    ("Invalid card rank.");
+  }
+
+  if (
+    (rank === "10" || rank === "J" || rank === "Q" || rank === "K") &&
+    (cardFace === "♠" ||
+      cardFace === "♣" ||
+      cardFace === "♦" ||
+      cardFace === "♥")
+  ) {
+    return 10;
+  } else {
+    return "Invalid card rank.";
+  }
+
+  if (
+    Number.isInteger(numRank) &&
+    numRank >= 2 &&
+    numRank <= 9 &&
+    (cardFace === "♠" ||
+      cardFace === "♣" ||
+      cardFace === "♦" ||
+      cardFace === "♥")
+  ) {
+    console.log("numRank is", rank);
+    return numRank;
+  } else {
+    return "Invalid card rank.";
   }
 }
 
@@ -39,19 +78,46 @@ assertEquals(aceofSpades, 11);
 // When the function is called with such a card,
 // Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5).
 const fiveofHearts = getCardValue("5♥");
-// ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(fiveofHearts, 5);
 
 // Handle Face Cards (J, Q, K):
 // Given a card with a rank of "10," "J," "Q," or "K",
 // When the function is called with such a card,
 // Then it should return the value 10, as these cards are worth 10 points each in blackjack.
+const tenOfDiamonds = getCardValue("10♦");
+assertEquals(tenOfDiamonds, 10);
+const jackOfClubs = getCardValue("J♣");
+assertEquals(jackOfClubs, 10);
+const queenOfSpades = getCardValue("Q♠");
+assertEquals(queenOfSpades, 10);
+const kingOfHearts = getCardValue("K♥");
+assertEquals(kingOfHearts, 10);
 
 // Handle Ace (A):
 // Given a card with a rank of "A",
 // When the function is called with an Ace,
 // Then it should, by default, assume the Ace is worth 11 points, which is a common rule in blackjack.
+const aceOfDiamonds = getCardValue("A♦");
+assertEquals(aceOfDiamonds, 11);
+const aceOfClubs = getCardValue("A♣");
+assertEquals(aceOfClubs, 11);
+const aceOfHearts = getCardValue("A♥");
+assertEquals(aceOfHearts, 11);
+//Actually, these cases already covered in the function getCardValue()
 
 // Handle Invalid Cards:
 // Given a card with an invalid rank (neither a number nor a recognized face card),
 // When the function is called with such a card,
 // Then it should throw an error indicating "Invalid card rank."
+const invalidNumberCard = getCardValue("12♥");
+assertEquals(invalidNumberCard, "Invalid card rank.");
+const invalidFaceCard = getCardValue("5*");
+assertEquals(invalidFaceCard, "Invalid card rank.");
+const invalidFaceCard10 = getCardValue("10$");
+assertEquals(invalidFaceCard10, "Invalid card rank.");
+const invalidFaceCardJack = getCardValue("J%");
+assertEquals(invalidFaceCardJack, "Invalid card rank.");
+const invalidFaceCardQueen = getCardValue("Q£");
+assertEquals(invalidFaceCardQueen, "Invalid card rank.");
+const invalidFaceCardKing = getCardValue("K^");
+assertEquals(invalidFaceCardKing, "Invalid card rank.");