Add Jest tests for getcardvalue function

Author: khalidbih

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

@@ -8,6 +8,19 @@ test("should return 11 for Ace of Spades", () => {
 });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return the value of number cards", () => {
+  expect(getCardValue("2♣")).toEqual(2);
+  expect(getCardValue("5♠")).toEqual(5);
+  expect(getCardValue("10♦")).toEqual(10);
+});
 // Case 3: Handle Face Cards (J, Q, K):
-// Case 4: Handle Ace (A):
+test("should return 10 for face cards", () => {
+  expect(getCardValue("J♣")).toEqual(10);
+  expect(getCardValue("Q♥")).toEqual(10);
+  expect(getCardValue("K♠")).toEqual(10);
+});
+
 // Case 5: Handle Invalid Cards:
+test("should throw an error for Invalid card", () => {
+  expect(() => getCardValue("1♣")).toThrow("Invalid card rank.");
+});