Completed 3-get-card-value

Author: libanj0161

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

@@ -23,6 +23,23 @@
 
 function getCardValue(card) {
   // TODO: Implement this function
+
+  // if card is an ace return 11
+  if (card === "A") {
+    return 11;
+  }
+
+  // if card is face "J", "Q", "K"
+  else if (card === "J" || card === "Q" || card === "K") {
+    return 10;
+  }
+
+  // if card is a number card and card is bigger than 2 and less than 10 ("2" to "10"), should return its numerical value
+  else if (Number(card) >= 2 && Number(card) <= 10) {
+    return Number(card);
+  } else {
+    throw new Error("Error invalid card");
+  }
 }
 
 // The line below allows us to load the getCardValue function into tests in other files.
@@ -39,7 +56,7 @@ function assertEquals(actualOutput, targetOutput) {
 
 // TODO: Write tests to cover all outcomes, including throwing errors for invalid cards.
 // Examples:
-assertEquals(getCardValue("9♠"), 9);
+assertEquals(getCardValue("9"), 9);
 
 // Handling invalid cards
 try {

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

@@ -6,15 +6,35 @@ const getCardValue = require("../implement/3-get-card-value");
 
 // Case 1: Ace (A)
 test(`Should return 11 when given an ace card`, () => {
-  expect(getCardValue("A♠")).toEqual(11);
+  expect(getCardValue("A")).toEqual(11);
 });
 
 // Suggestion: Group the remaining test data into these categories:
 //   Number Cards (2-10)
 //   Face Cards (J, Q, K)
 //   Invalid Cards
 
+// Case 2: Face (J, Q, K)
+test(`Should return 10 when given an face card`, () => {
+  expect(getCardValue("J")).toEqual(10);
+});
+
+test(`Should return 10 when given an face card`, () => {
+  expect(getCardValue("Q")).toEqual(10);
+});
+
+test(`Should return 10 when given an face card`, () => {
+  expect(getCardValue("K")).toEqual(10);
+});
+// Case 3: Number Cards (2-10)
+test(`Should return numerical value when given an number card`, () => {
+  expect(getCardValue("5")).toEqual(5);
+});
+
+test(`Should return error if the card string is invalid`, () => {
+  expect(() => getCardValue("17")).toThrow("Error invalid card");
+});
+
 // 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
-