Refactor tests for getCardValue function to enhance coverage and error handling

Author: Baba05206

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

@@ -8,6 +8,50 @@ test("should return 11 for Ace of Spades", () => {
 });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return correct value for number cards (2–10)", () => {
+  expect(getCardValue("2♥")).toEqual(2);
+  expect(getCardValue("7♣")).toEqual(7);
+  expect(getCardValue("10♦")).toEqual(10);
+  expect(getCardValue("5♠")).toEqual(5);
+});
 // Case 3: Handle Face Cards (J, Q, K):
+test("should return 10 for face cards (J, Q, K)", () => {
+  expect(getCardValue("J♠")).toEqual(10);
+  expect(getCardValue("Q♦")).toEqual(10);
+  expect(getCardValue("K♥")).toEqual(10);
+  expect(getCardValue("J♣")).toEqual(10);
+});
 // Case 4: Handle Ace (A):
+test("should return 11 for Ace cards", () => {
+  expect(getCardValue("A♦")).toEqual(11);
+  expect(getCardValue("A♥")).toEqual(11);
+  expect(getCardValue("A♣")).toEqual(11);
+  expect(getCardValue("A♠")).toEqual(11);
+});
 // Case 5: Handle Invalid Cards:
+test("should throw an error for invalid card ranks and provide a descriptive message", () => {
+  // These specific ranks are all invalid
+  expect(() => getCardValue("Z♠")).toThrow(
+    'Invalid or unrecognized card rank: "Z"'
+  );
+  expect(() => getCardValue("1♥")).toThrow(
+    'Invalid or unrecognized card rank: "1"'
+  );
+  expect(() => getCardValue("11♦")).toThrow(
+    'Invalid or unrecognized card rank: "11"'
+  );
+  expect(() => getCardValue("X♣")).toThrow(
+    'Invalid or unrecognized card rank: "X"'
+  );
+
+  // These should throw because they result in an empty or whitespace rank
+  expect(() => getCardValue(" ♣")).toThrow(
+    'Invalid or unrecognized card rank: " "'
+  );
+  expect(() => getCardValue("♣")).toThrow(
+    'Invalid or unrecognized card rank: ""'
+  );
+  expect(() => getCardValue("")).toThrow(
+    'Invalid or unrecognized card rank: ""'
+  );
+});