created testcases for get card value and tested with a pass

Author: AdnaanA

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

@@ -8,9 +8,20 @@
 // 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) {
+  
+  const rank = card.slice(0, -1); // Extract rank before the suit
+
   if (rank === "A") {
     return 11;
+  } else if (["K", "Q", "J", "10"].includes(rank)) {
+    return 10;
+  } else if (!isNaN(rank) && Number(rank) >= 2 && Number(rank) <= 9) {
+    return Number(rank);
+  } else {
+    throw new Error("Invalid card rank");
   }
+
+
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -40,18 +51,41 @@ assertEquals(aceofSpades, 11);
 // 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 kingofDiamonds = getCardValue("K♦");
+assertEquals(kingofDiamonds, 10);
+const jackofClubs = getCardValue("J♣");
+assertEquals(jackofClubs, 10);
+const queenofHearts = getCardValue("Q♥");
+assertEquals(queenofHearts, 10);
+const tenofSpades = getCardValue("10♠");
+assertEquals(tenofSpades, 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 aceofClubs = getCardValue("A♣");
+assertEquals(aceofClubs, 11);
 
 // 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 invalidCard = () => getCardValue("1♠");
+// ====> write your test here, and then add a line to pass the test in the function above
+try {
+  invalidCard();
+  console.assert(false, "Expected an error to be thrown for invalid card rank");
+} catch (e) {
+  console.assert(
+    e.message === "Invalid card rank",
+    `Expected error message to be "Invalid card rank" but got "${e.message}"`
+  );
+}
+