3-get-card-value write jest tests to cover additional edge cases and invalid inputs

Author: AlanGit-debug2604

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

@@ -7,6 +7,59 @@ 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("J♣")).toEqual(10);
+  expect(getCardValue("Q♦")).toEqual(10);
+  expect(getCardValue("K♥")).toEqual(10);
+});
+
+// Case 3: Number cards (2-10)
+test(`Should return the correct value for number cards`, () => {
+  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 ranks
+test(`Should throw an error when given an invalid card`, () => {
+  expect(() => getCardValue("11♠")).toThrow(Error);
+  expect(() => getCardValue("1♣")).toThrow(Error);
+  expect(() => getCardValue("H♠")).toThrow(Error);
+});
+
+// Case 5: Invalid suits
+test(`Should throw an error when given an invalid suit`, () => {
+  expect(() => getCardValue("A♤")).toThrow(Error);
+  expect(() => getCardValue("10X")).toThrow(Error);
+  expect(() => getCardValue("KZ")).toThrow(Error);
+});
+
+// Case 6: Invalid input types
+test(`Should throw an error when given a non-string input`, () => {
+  expect(() => getCardValue(10)).toThrow(Error);
+  expect(() => getCardValue(null)).toThrow(Error);
+  expect(() => getCardValue(undefined)).toThrow(Error);
+  expect(() => getCardValue({})).toThrow(Error);
+  expect(() => getCardValue([])).toThrow(Error);
+});
+
+// Case 7: Edge cases
+test(`Should throw an error for edge cases`, () => {
+  expect(() => getCardValue("")).toThrow(Error);
+  expect(() => getCardValue("A")).toThrow(Error);
+  expect(() => getCardValue("♠")).toThrow(Error);
+  expect(() => getCardValue("A♠♣")).toThrow(Error);
+  expect(() => getCardValue("10♠♣")).toThrow(Error);
+});
+
+
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)