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

Author: bartoszkawiak

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

@@ -5,6 +5,34 @@ 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.
 
 // Special case: numerator is zero
+
 test(`should return false when denominator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+test(`should return true when input (1, 2)`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+});
+test(`should return false when (numerator = 0)`, () => {
+  expect(isProperFraction(0, 4)).toEqual(false);
+});
+test(`should return false when (numerator===denominator)`, () => {
+  expect(isProperFraction(5, 5)).toEqual(false);
+});
+test(`should return false when (numerator>denominator)`, () => {
+  expect(isProperFraction(6, 5)).toEqual(false);
+});
+test(`should return false when (numerator ===0 && denominator === 0)`, () => {
+  expect(isProperFraction(0, 0)).toEqual(false);
+});
+test(`should return false when numerator is negative number`, () => {
+  expect(isProperFraction(-4, 8)).toEqual(false);
+});
+test(`should return false when (negative numerator === denominator )`, () => {
+  expect(isProperFraction(-5, 5)).toEqual(false);
+});
+test(`should return false when ( numerator < negative denominator )`, () => {
+  expect(isProperFraction(3, -5)).toEqual(false);
+});
+test(`should return false when numerator is zero and denominator is negative zero`, () => {
+  expect(isProperFraction(0, -0)).toEqual(false);
+});