Refactor tests for getCardValue function to improve structure and clarity

Author: TTiamiyu

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

@@ -5,16 +5,33 @@ const getCardValue = require("../implement/3-get-card-value");
 // TODO: Write tests in Jest syntax to cover all possible outcomes.
 
 // Case 1: Ace (A)
-test(`Should return 11 when given an ace card`, () => {
+test("Should return 11 when given an ace card", () => {
   expect(getCardValue("A♠")).toEqual(11);
 });
 
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
+test("should return correct value for number cards", () => {
+  expect(getCardValue("2♠")).toEqual(2);
+  expect(getCardValue("5♥")).toEqual(5);
+  expect(getCardValue("9♦")).toEqual(9);
+  expect(getCardValue("10♣")).toEqual(10);
+});
 //   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);
+});
+
 //   Invalid Cards
+test("should throw an error for invalid cards", () => {
+  expect(() => getCardValue("1♠")).toThrow();
+  expect(() => getCardValue("Z♣")).toThrow();
+  expect(() => getCardValue("A")).toThrow(); // missing suit
+  expect(() => getCardValue("")).toThrow(); // empty string
+});
 
 // 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
-