responding to the valuable comments

Author: Abrsh100

Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js

@@ -15,7 +15,7 @@ function isProperFraction(numerator, denominator) {
     return false;
   }
   if (numerator === denominator) {
-    return true;
+    return false;
   }
   if (numerator === 0) {
     return true;
@@ -67,7 +67,7 @@ assertEquals(negativeFraction, true);
 // Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false.
 const equalFraction = isProperFraction(3, 3);
 // ====> complete with your assertion
-assertEquals(equalFraction, true);
+assertEquals(equalFraction, false);
 
 // Stretch:
 // What other scenarios could you test for?

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

@@ -37,6 +37,6 @@ test("should return 11 for Ace of Diamonds", () => {
   expect(getCardValue("A♦")).toEqual(11);
 });
 // Case 5: Handle Invalid Cards:
-test("should return null for invalid card 'B'", () => {
-  expect(getCardValue("Z♠")).toBeNull();
-});
+test("should throw an error for invalid card 'Z♠'", () => {
+  expect(() => getCardValue("Z♠")).toThrow("Invalid card");
+});