get fraction test file update

Author: asandagwala

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

@@ -8,3 +8,31 @@ const isProperFraction = require("../implement/2-is-proper-fraction");
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+// Case 1: Standard Positive Numbers
+test("should handle standard positive fractions correctly", () => {
+  expect(isProperFraction(1, 2)).toEqual(true);  
+  expect(isProperFraction(5, 3)).toEqual(false);   
+});
+
+// Case 2: Equal Numbers (Boundary)
+test("should return false when numerator and denominator are equal", () => {
+  expect(isProperFraction(5, 5)).toEqual(false);   // Equals 1 whole (Improper)
+});
+
+// Case 3: Numerator is Zero
+test("should return true when numerator is zero and denominator is positive", () => {
+  expect(isProperFraction(0, 5)).toEqual(true);   
+});
+
+// Case 4: Negative Numbers
+test("should handle negative integers according to mathematical comparison rules", () => {
+  expect(isProperFraction(-5, -2)).toEqual(true); 
+  expect(isProperFraction(-1, -4)).toEqual(false); 
+});
+
+// Case 5: Mixed Positive and Negative Numbers
+test("should return true when only the numerator is negative", () => {
+  expect(isProperFraction(-1, 2)).toEqual(true);   
+  expect(isProperFraction(1, -2)).toEqual(false); 
+});