Added Jest tests for isProperFraction for proper, improper, negative, equal numerator/denominator cases

Author: khalidbih

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

@@ -7,7 +7,16 @@ test("should return true for a proper fraction", () => {
 });
 
 // Case 2: Identify Improper Fractions:
+test("should return false for Improper fraction", () => {
+  expect(isProperFraction(5, 2)).toEqual(false);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return false for Negative fraction", () => {
+  expect(isProperFraction(-4, 7)).toEqual(false);
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false for Equal numerator and denominator", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});