Sprint-3 -3-get-card-value.js Functions, assertion and invalid rank tested

Author: Mahtem

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);
   if (rank === "A") {
     return 11;
   }
+   else if (["K", "J", "Q", "10"].includes(rank)){
+    return 10;
+   }
+   else if (!isNaN(rank )) {
+    return Number(rank);
+   }
+    else {
+      throw new Error ("Invalid Card");
+    }
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -41,19 +52,38 @@ 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♥");
+assertEquals(fiveofHearts, 5);
 // ====> write your test here, and then add a line to pass the test in the function above
 
+
+
 // 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 faceCards = getCardValue("J♥");
+assertEquals(faceCards, 10);
+
+const tenOfClubs = getCardValue("10♣");
+assertEquals(tenOfClubs, 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 aceCards = getCardValue("A♣");
+assertEquals(aceCards, 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."
+
+try {
+  getCardValue("Z♣"); // invalid card
+  console.log("Test failed: no error thrown");
+} catch (error) {
+  assertEquals(error.message, "Invalid Card");
+}