Test cases for all possible valid and invalid cards created and tested.

Author: russom

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

@@ -42,18 +42,18 @@ function getCardValue(card) {
   const validSuits = ["♠", "♥", "♦", "♣"]; // An array of suits are created here.
 
   if (typeof card !== "string") { // Here the type of values are checked whether they are string.
-    throw new Error("Invalid card: " + card);
+    return card + " Invalid card";
   }
   const suit = card.slice(-1);
   const rank = card.slice(0, -1);
 
   if (!validRanks.includes(rank) || !validSuits.includes(suit)) { //Here the values that are stored in rank and suit are checked whether they are valid are inside the validRank and validSuits arrays.
-    throw new Error("Invalid card: " + card);
+    return card + " Invalid card";
   }
 
   if (rank === "A") { // Here the code is testing wether the rank is an Ace.
     return 11;
-  } else if (cards === "J" || rank === "Q" || rank === "K") { // Here the ranks are checked if they are J, Q or K and it returns 10
+  } else if (rank === "J" || rank === "Q" || rank === "K") { // Here the ranks are checked if they are J, Q or K and it returns 10
     return 10;
   } else { // Lastly any rank between 2 and 10 get checked and the same number of value returned.
     return Number(rank);

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

@@ -9,6 +9,34 @@ test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
+// Case 2: Face Cards (J, Q, K)
+test(`Should return 10 when given a face card`, () => {
+  expect(getCardValue("K♦")).toEqual(10);
+  expect(getCardValue("Q♥")).toEqual(10);
+  expect(getCardValue("J♣")).toEqual(10);
+});
+
+// Case 3: Number Cards (2-10)
+test(`Should return the card value when given number card`, () => {
+  expect(getCardValue("2♠")).toEqual(2);
+  expect(getCardValue("3♥")).toEqual(3);
+  expect(getCardValue("4♦")).toEqual(4);
+  expect(getCardValue("5♥")).toEqual(5);
+  expect(getCardValue("6♣")).toEqual(6);
+  expect(getCardValue("7♠")).toEqual(7);
+  expect(getCardValue("8♦")).toEqual(8);
+  expect(getCardValue("9♥")).toEqual(9);
+  expect(getCardValue("10♣")).toEqual(10);
+});
+
+// Case 4: Invalid Cards
+test(`Should return invalid cards when given a face card`, () => {
+  expect(getCardValue("1♦")).toEqual("Invalid card");
+  expect(getCardValue("10")).toEqual("Invalid card");
+  expect(getCardValue("AZ")).toEqual("Invalid card");
+  expect(getCardValue("")).toEqual("Invalid card");
+});
+
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)
@@ -17,4 +45,3 @@ test(`Should return 11 when given an ace card`, () => {
 // To learn how to test whether a function throws an error as expected in Jest,
 // please refer to the Jest documentation:
 // https://jestjs.io/docs/expect#tothrowerror
-

package.json

@@ -9,7 +9,7 @@
   "keywords": [],
   "author": "Code Your Future",
   "license": "ISC",
-  "dependencies": {
-    "jest": "^29.7.0"
+  "devDependencies": {
+    "jest": "^30.4.2"
   }
-}
+}