added jest test for 2-is-proper-faction

Author: HadiVahidi20

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 numerato>denominator",()=>{
+  expect(isProperFraction(5, 2)).toEqual(false);
+} );
 
 // Case 3: Identify Negative Fractions:
+test ("should return true for negative Fraction",()=>{
+  expect(isProperFraction(-4,7)).toEqual(true);
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test (" should return false for Equal Numerator and Denominator ",()=>{
+  expect(isProperFraction(3,3)).toEqual(false);
+});