solved 2-is-proper-fraction.test.js

Author: JohnnyBoyV

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

@@ -4,6 +4,22 @@ const isProperFraction = require("../implement/2-is-proper-fraction");
 
 // TODO: Write tests in Jest syntax to cover all combinations of positives, negatives, zeros, and other categories.
 
+test("should return true for valid proper fractions", () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+  expect(isProperFraction(3, 10)).toEqual(true);
+  expect(isProperFraction(0, 5)).toEqual(true);
+});
+
+test("should return false when numerator is equal to or greater than denominator", () => {
+  expect(isProperFraction(5, 5)).toEqual(false);
+  expect(isProperFraction(10, 3)).toEqual(false);
+});
+
+test("should return false when numerator or denominator is negative", () => {
+  expect(isProperFraction(-1, 2)).toEqual(false);
+  expect(isProperFraction(1, -2)).toEqual(false);
+});
+
 // Special case: numerator is zero
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);