Update 3-get-card-value.test.js

Add Jest tests for Ace, number, face, and invalid cards for getCardValue.

Author: codebyshay

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

@@ -9,6 +9,29 @@ test(`Should return 11 when given an ace card`, () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
+// Case 2: Number cards (2-10)
+test(`Should return the correct number for number cards`, () => {
+  expect(getCardValue("2♠")).toEqual(2);
+  expect(getCardValue("5♥")).toEqual(5);
+  expect(getCardValue("10♦")).toEqual(10);
+});
+
+// Case 3: Face cards (J, Q, K)
+test(`Should return 10 for face cards`, () => {
+  expect(getCardValue("J♣")).toEqual(10);
+  expect(getCardValue("Q♦")).toEqual(10);
+  expect(getCardValue("K♥")).toEqual(10);
+});
+
+// Case 4: Invalid cards
+test(`Should throw error for invalid cards`, () => {
+  expect(() => getCardValue("1♠")).toThrow("Invalid card");     // invalid rank
+  expect(() => getCardValue("A?")).toThrow("Invalid card");      // invalid suit
+  expect(() => getCardValue("10♠♠")).toThrow("Invalid card");   // extra character
+  expect(() => getCardValue("")).toThrow("Invalid card");        // empty string
+  expect(() => getCardValue("banana")).toThrow("Invalid card");  // completely invalid
+});
+
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)