All possible special and non special case of test written.

Author: russom

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

@@ -4,7 +4,74 @@ 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`, () => {
+// Special case 1: numerator is zero
+test(`should return false when numerator is zero`, () => {
   expect(isProperFraction(1, 0)).toEqual(false);
 });
+
+// Special case 2: denominator zero
+test(`should return false when denominator is zero`, () => {
+  expect(isProperFraction(0, 1)).toEqual(false);
+});
+
+// Special case 3: both zero
+test(`should return false when both are zero`, () => {
+  expect(isProperFraction(0, 0)).toEqual(false);
+});
+
+// Special case 4: numerator is a negative number
+test(`should return false when numerator is negative`, () => {
+  expect(isProperFraction(-3, 4)).toEqual(false);
+});
+
+// Special case 5: denominator is a negative number
+test(`should return false when denominator is negative`, () => {
+  expect(isProperFraction(3, -4)).toEqual(false);
+});
+
+// Special case 6: numerator -3 and denominator -4 
+test(`should return false when numerator -3 and denominator -4`, () => {
+  expect(isProperFraction(-3, -4)).toEqual(false);
+});
+
+// Special case 7: negative equal values 
+test(`should return false when both negative equal values`, () => {
+  expect(isProperFraction(-6, -6)).toEqual(false);
+});
+
+// Special case 8: equal values 
+test(`should return false when both are equal`, () => {
+  expect(isProperFraction(5, 5)).toEqual(false);
+});
+
+// Special case 9: numerator is a negative number
+test(`should return false when numerator is negative`, () => {
+  expect(isProperFraction(-3, 4)).toEqual(false);
+});
+
+// Non special cases
+
+// Case ase 10: numerator 1 denominator 2
+test(`should return false when numerator 1 denominator 2`, () => {
+  expect(isProperFraction(1, 2)).toEqual(true);
+});
+
+// Case ase 11: numerator 3 denominator 4
+test(`should return false when numerator 3 denominator 4`, () => {
+  expect(isProperFraction(3, 4)).toEqual(true);
+});
+
+// Case ase 12: numerator 5 denominator 8 
+test(`should return false when numerator 5 denominator 8`, () => {
+  expect(isProperFraction(5, 8)).toEqual(true);
+});
+
+// Case ase 13: numerator 7 denominator 4 
+test(`should return false when 7 denominator 4`, () => {
+  expect(isProperFraction(7, 4)).toEqual(false);
+});
+
+// Case ase 14: numerator 9 denominator 5 
+test(`should return false when numerator 9 denominator 5`, () => {
+  expect(isProperFraction(9, 5)).toEqual(false);
+});